Why is Section 112 of the Patent Act important?  

Section 112 of the Patent Act, codified as 35 U.S.C. § 112, outlines the requirements for the specification of a patent application. This section is critical as it defines what an inventor must include in their patent application to obtain a patent. Here are the key components of Section 112:

  1. Written Description: The application must contain a written description of the invention, in clear, concise, and exact terms, so as to enable any person of ordinary skill in the art to make and use the invention. This ensures that the public can benefit from the knowledge of the invention once the patent expires.

  2. Enablement Requirement: The specification must describe the manner and process of making and using the invention in such full, clear, concise, and exact terms as to enable any person of ordinary skill in the art to make and use it. This is known as the enablement requirement.

  3. Best Mode Requirement: The application must set forth the best mode contemplated by the inventor for carrying out the invention. This means the inventor must disclose the best way of practicing the invention at the time of filing the application, although this requirement is not as strictly enforced following the America Invents Act of 2011.

  4. Claims: The application must conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor regards as the invention. These claims define the scope of the patent protection.

  5. Definiteness Requirement: The claims must be written in such a way that they inform, with reasonable certainty, those skilled in the art about the scope of the invention. This is known as the definiteness requirement.

These requirements collectively ensure that the patent application provides sufficient information to the public while clearly defining the boundaries of the patent rights being sought. Failure to comply with any of these requirements can result in the rejection of a patent application or invalidation of an issued patent.

The USPTO may ask for more definitive claims in an office action refusing to register a patent application. 

Do you have questions about your invention and filing a patent for it?  Call us at 914-908-6757 or send an e-mail to anthony@vernalaw.com for additional information from Verna Law, P.C.

Best practices for definitive patent claims:

Patent claims are crucial in defining the scope and boundaries of a patent. They must meet several essential criteria to ensure they effectively capture the invention and its possible variations. Here’s a breakdown of what you need to know:

  1. Defining the Invention:

    • Claims must clearly define the invention for which protection is sought. This helps in distinguishing the patented invention from prior art and ensuring it meets the requirements of novelty and non-obviousness.
    • Patent drafters invest so much time and effort in writing the independent claims that they end up spending lesser time on formulating dependent claims. While that may be necessary, it is important to focus on dependent claims adequately as they have their unique purpose. When independent claims get rejected, drafters insert the limitations of the dependent claim into the independent claim.
  2. Clarity and Precision:

    • The language used in patent claims should be clear and precise. Ambiguous or overly broad claims can lead to legal challenges and difficulties in enforcement.
    • The claims should always be drafted consistently. Claims containing inconsistent claim terms can result in unintended consequences during patent litigation. For example, if a motor has been recited in the claims, the drafter should not refer to ‘the motor’ with different nomenclature.
  3. Variants and Embodiments:

    • Claims should be drafted to capture not only the specific invention but also possible variants. This ensures that minor modifications or alternative implementations of the invention are also protected. These must create a clear description of the invention.
    • Claims should be broad, however, there is a limit. Too broad claims apply to other devices or methods that fall under prior art. For example, let’s consider an invention that is an improvement in a wrench using a rack-and-pinion arrangement for adjusting the jaws. It might seem broader to claim “a rack and pinion” rather than “a wrench comprising a jaw with a rack, and a rotatable pinion gear engaged with the rack.” But this will be counterproductive.Our invention is not a rack and pinion. By claiming it, one has selected a claim broader than one is entitled to. The examiner may cite automotive steering against the invention, and that will be the right ground for rejection. Instead, claiming a wrench using the rack and pinion will narrow down the focus to tools, and the claim will have higher chances of approval.

  4. Legal and Technical Aspects:

    • Effective claims balance legal and technical language, ensuring they are understandable to those skilled in the art and robust enough to withstand legal scrutiny.
  5. Strategic Drafting:

    • Strategically drafted claims can enhance the value of a patent by covering a broad range of applications and providing strong protection against potential infringements.

By focusing on these key aspects, inventors and patent practitioners can draft patent claims that provide comprehensive protection and stand up to legal and competitive challenges.

 

The Statute Excerpt Itself:

(a)In General.—

The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention.

(b)Conclusion.—

The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.

(c)Form.—

A claim may be written in independent or, if the nature of the case admits, in dependent or multiple dependent form.

(d)Reference in Dependent Forms.—

Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers.

(e)Reference in Multiple Dependent Form.—

A claim in multiple dependent form shall contain a reference, in the alternative only, to more than one claim previously set forth and then specify a further limitation of the subject matter claimed. A multiple dependent claim shall not serve as a basis for any other multiple dependent claim. A multiple dependent claim shall be construed to incorporate by reference all the limitations of the particular claim in relation to which it is being considered.

(f)Element in Claim for a Combination.—

An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof.

 

Functional Claims:

A functional patent claim, also known as a “means-plus-function” claim, is a type of patent claim that defines an invention based on the function it performs rather than its specific structure or components. These claims describe what the invention does rather than how it does it. In U.S. patent law, functional claims are governed by 35 U.S.C. § 112(f) (previously § 112, ¶ 6). Here are the key aspects:

  1. Language and Structure:

    • Functional claims often use language like “means for” or “step for” performing a specific function.
    • Instead of detailing the specific hardware or software that accomplishes the function, the claim focuses on the result or outcome of the function.
  2. Interpretation:

    • Under § 112(f), a functional claim is construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof.
    • This means that while the claim is broad in its language, its scope is limited to the specific embodiments and equivalents disclosed in the patent’s written description.
  3. Examples:

    • A claim might state: “A means for fastening two objects together,” which would be interpreted to include the specific fastening methods described in the patent, such as a bolt, screw, or adhesive.
  4. Advantages and Challenges:

    • Advantages: Functional claims can provide broad protection because they focus on the result achieved, potentially covering a wide range of implementations.
    • Challenges: They can be difficult to enforce because the patent holder must demonstrate that the accused infringing device performs the claimed function in substantially the same way as described in the specification. Additionally, overly broad functional claims can be invalidated for lack of sufficient disclosure of corresponding structure.
  5. Legal Considerations:

    • Courts closely scrutinize functional claims to ensure they meet the requirements of § 112(f), particularly the need for clear linkage between the claimed function and the disclosed structure.
    • This scrutiny helps balance the broad protection functional claims can offer with the need to provide clear notice of what the patent covers.

Overall, functional patent claims are a powerful tool in a patent portfolio but require careful drafting and a well-documented specification to ensure they are enforceable and valid.

 

Lessons from cases:

35 U.S.C. § 112 is what guides Claim Construction of a patent.  

The case Huawei Technologies Co. Ltd. v. Verizon Communications, Inc. (2021 WL 150442) is significant in the context of patent law and the telecommunications industry. Here are the key points and the importance of the case:

  1. Patent Infringement Allegations:

    • Huawei filed a lawsuit against Verizon alleging that Verizon infringed on several of its patents related to network technology.
    • The patents in question covered various aspects of telecommunications technology, including network infrastructure, signal transmission, and data processing.
  2. Jurisdiction and Venue:

    • The case was filed in the United States District Court for the Eastern District of Texas, a popular venue for patent litigation due to its plaintiff-friendly reputation.
    • The court’s decision in this case reaffirmed its role in adjudicating complex patent disputes, particularly involving large multinational corporations.
  3. Impact on Licensing and Negotiations:

    • The lawsuit highlighted the ongoing tensions between major technology companies over patent licensing and the use of proprietary technology.
    • The case underscored the importance of patent portfolios and the strategic use of litigation to negotiate licensing agreements and royalties.
  4. Market and Industry Implications:

    • The outcome of the case had implications for the broader telecommunications industry, affecting how companies manage their intellectual property and engage in cross-licensing deals.
    • It emphasized the competitive nature of the industry and the critical role of patented technologies in maintaining market positions.
  5. Legal Precedents and Patent Enforcement:

    • The court’s rulings on various motions and procedural aspects of the case contributed to the body of law regarding patent enforcement, particularly in high-tech industries.
    • The decision provided guidance on how courts may handle similar patent disputes in the future, influencing litigation strategies for both patentees and alleged infringers.

In summary, the Huawei Technologies Co. Ltd. v. Verizon Communications, Inc. case is important because it showcases the complexities of patent litigation in the telecommunications sector, highlights the strategic use of patents in business negotiations, and contributes to the legal framework governing patent enforcement.

 

Case excerpt:

Functional Claiming and 35 U.S.C. § 112, ¶ 6 (pre-AIA 35 U.S.C. Section 112(f)) / § 112(f) (AIA)

A patent claim may be expressed using functional language. See 35 U.S.C. § 112, ¶ 6; Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1347–49 & n.3 (Fed. Cir. 2015) (en banc in relevant portion). Section 112, Paragraph 6, provides that a structure may be claimed as a “means … for performing a specified function” and that an act may be claimed as a “step for performing a specified function.” Masco Corp. v. United States, 303 F.3d 1316, 1326 (Fed. Cir. 2002).

But § 112, ¶ 6 does not apply to all functional claim language. There is a rebuttable presumption that § 112, ¶ 6 applies when the claim language includes “means” or “step for” terms, and that it does not apply in the absence of those terms. Masco Corp., 303 F.3d at 1326; Williamson, 792 F.3d at 1348. The presumption stands or falls according to whether one of ordinary skill in the art would understand the claim with the functional language, in the context of the entire specification, to denote sufficiently definite structure or acts for performing the function. See Media Rights Techs., Inc. v. Capital One Fin. Corp., 800 F.3d 1366, 1372 (Fed. Cir. 2015) (§ 112, ¶ 6 does not apply when “the claim language, read in light of the specification, recites sufficiently definite structure” (quotation marks omitted) (citing Williamson, 792 F.3d at 1349; Robert Bosch, LLC v. Snap-On Inc., 769 F.3d 1094, 1099 (Fed. Cir. 2014))); Williamson, 792 F.3d at 1349 (§ 112, ¶ 6 does not apply when “the words of the claim are understood by persons of ordinary skill in the art to have sufficiently definite meaning as the name for structure”); Masco Corp., 303 F.3d at 1326 (§ 112, ¶ 6 does not apply when the claim includes an “act” corresponding to “how the function is performed”); Personalized Media Communications, L.L.C. v. International Trade Commission, 161 F.3d 696, 704 (Fed. Cir. 1998) (§ 112, ¶ 6 does not apply when the claim includes “sufficient structure, material, or acts within the claim itself to perform entirely the recited function … even if the claim uses the term ‘means.’ ” (quotation marks and citation omitted)).

 

When it applies, § 112, ¶ 6 limits the scope of the functional term “to only the structure, materials, or acts described in the specification as corresponding to the claimed function and equivalents thereof.” Williamson, 792 F.3d at 1347. Construing a means-plus-function limitation involves multiple steps. “The first step … is a determination of the function of the means-plus-function limitation.” Medtronic, Inc. v. Advanced Cardiovascular Sys., Inc., 248 F.3d 1303, 1311 (Fed. Cir. 2001). “[T]he next step is to determine the corresponding structure disclosed in the specification and equivalents thereof.” Id. A “structure disclosed in the specification is ‘corresponding’ structure only if the specification or prosecution history clearly links or associates that structure to the function recited in the claim.” Id. The focus of the “corresponding structure” inquiry is not merely whether a structure is capable of performing the recited function, but rather whether the corresponding structure is “clearly linked or associated with the [recited] function.” Id. The corresponding structure “must include all structure that actually performs the recited function.” Default Proof Credit Card Sys. v. Home Depot U.S.A., Inc., 412 F.3d 1291, 1298 (Fed. Cir. 2005). However, § 112 does not permit “incorporation of structure from the written description beyond that necessary to perform the claimed function.” Micro Chem., Inc. v. Great Plains Chem. Co., 194 F.3d 1250, 1258 (Fed. Cir. 1999).

 

 For § 112, ¶ 6 limitations implemented by a programmed general purpose computer or microprocessor, the corresponding structure described in the patent specification must include an algorithm for performing the function. WMS Gaming Inc. v. Int’l Game Tech., 184 F.3d 1339, 1349 (Fed. Cir. 1999). The corresponding structure is not a general purpose computer but rather the special purpose computer programmed to perform the disclosed algorithm. Aristocrat Techs. Austl. Pty Ltd. v. Int’l Game Tech., 521 F.3d 1328, 1333 (Fed. Cir. 2008).

 

Definiteness Under 35 U.S.C. § 112, ¶ 2 (pre-AIA) / § 112(b) (AIA)

Patent claims must particularly point out and distinctly claim the subject matter regarded as the invention. 35 U.S.C. § 112, ¶ 2. A claim, when viewed in light of the intrinsic evidence, must “inform those skilled in the art about the scope of the invention with reasonable certainty.” Nautilus Inc. v. Biosig Instruments, Inc., 572 U.S. 898, 910, 134 S.Ct. 2120, 189 L.Ed.2d 37 (2014). If it does not, the claim fails § 112, ¶ 2 and is therefore invalid as indefinite. Id. at 901, 134 S.Ct. 2120. Whether a claim is indefinite is determined from the perspective of one of ordinary skill in the art as of the time the application for the patent was filed. Id. at 911, 134 S.Ct. 2120. As it is a challenge to the validity of a patent, the failure of any claim in suit to comply with § 112 must be shown by clear and convincing evidence. BASF Corp. v. Johnson Matthey Inc., 875 F.3d 1360, 1365 (Fed. Cir. 2017). “[I]ndefiniteness is a question of law and in effect part of claim construction.” ePlus, Inc. v. Lawson Software, Inc., 700 F.3d 509, 517 (Fed. Cir. 2012).

When a term of degree is used in a claim, “the court must determine whether the patent provides some standard for measuring that degree.” Biosig Instruments, Inc. v. Nautilus, Inc., 783 F.3d 1374, 1378 (Fed. Cir. 2015) (quotation marks omitted). Likewise, when a subjective term is used in a claim, “the court must determine whether the patent’s specification supplies some standard for measuring the scope of the [term].” Datamize, LLC v. Plumtree Software, Inc., 417 F.3d 1342, 1351 (Fed. Cir. 2005). The standard “must provide objective boundaries for those of skill in the art.” Interval Licensing LLC v. AOL, Inc., 766 F.3d 1364, 1371 (Fed. Cir. 2014).

 

In the context of a claim governed by 35 U.S.C. § 112, ¶ 6, the claim is invalid as indefinite if the claim fails to disclose adequate corresponding structure to perform the claimed function. Williamson, 792 F.3d at 1351–52. The disclosure is inadequate when one of ordinary skill in the art “would be unable to recognize the structure in the specification and associate it with the corresponding function in the claim.” Id. at 1352.

 

The case Maxell, Ltd. v. Amperex Technology Limited (94 F.4th 1369, 2024 WL 948880), decided on March 6, 2024, by the United States Court of Appeals for the Federal Circuit, is important for several reasons:

  1. Patent Infringement and Technology:

    • The case involves significant patents related to battery technology, which is crucial for a wide range of consumer electronics, electric vehicles, and renewable energy storage solutions.
    • The outcome of the case has implications for the competitive landscape in the battery industry, impacting both manufacturers and end-users.
  2. Legal Precedents:

    • The decision establishes important precedents regarding the interpretation of patent claims and the application of patent law in the context of advanced technologies.
    • It addresses issues of claim construction, infringement analysis, and the standard for proving patent validity and infringement.
  3. Market and Industry Impact:

    • A ruling in favor of Maxell could strengthen its patent portfolio and position in the market, potentially leading to increased licensing revenues or market share.
    • Conversely, a ruling in favor of Amperex could affect the strategies of other companies in the industry, influencing how they approach patent litigation and licensing negotiations.
  4. Innovation and Investment:

    • The case highlights the importance of intellectual property protection in fostering innovation and encouraging investment in new technologies.
    • It underscores the value of patents in securing a return on investment for companies that develop cutting-edge technologies.
  5. International Trade and Competition:

    • Given the global nature of the battery industry, the case may have implications for international trade and competition.
    • The decision could influence how companies navigate patent laws in different jurisdictions and manage their global intellectual property strategies.

In summary, Maxell, Ltd. v. Amperex Technology Limited is a pivotal case due to its impact on patent law, the battery industry, and broader technological innovation. The Federal Circuit’s decision will shape legal and business strategies in high-tech industries, particularly those involving critical technologies like advanced batteries.

Case excerpt:

Under 35 U.S.C. § 112, ¶ 2 (2006), a patent specification “shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.” Patent claims that fail to meet the “particularly pointing out and distinctly claiming” requirement are invalid for indefiniteness. When “claims, read in light of the specification delineating the patent, and the prosecution history, fail to inform, with reasonable certainty, those skilled in the art about the scope of the invention,” they are indefinite. Nautilus, Inc. v. Biosig Instruments, Inc., 572 U.S. 898, 901, 134 S.Ct. 2120, 189 L.Ed.2d 37 (2014). “Indefiniteness must be proven by clear and convincing evidence.” Sonix Technology Co. v. Publications International, Ltd., 844 F.3d 1370, 1377 (Fed. Cir. 2017). We decide indefiniteness de novo where, as here, there are no material underlying factual issues. See Cox Communications, Inc. v. Sprint Communication Co., 838 F.3d 1224, 1228 (Fed. Cir. 2016); Biosig Instruments, Inc. v. Nautilus, Inc., 783 F.3d 1374, 1377–78 (Fed. Cir. 2015).

The district court based its indefiniteness conclusion on its determination that “the plain language of [claim 1] recites a contradiction” in that “[t]he first part of the claim recites a Markush group where [cobalt] is not necessarily required to be in the claimed compound while the second part of the claim recites that [cobalt] is necessarily required. For an element to simultaneously be optional and required is a contradiction on its face.”  *1373 Claim Construction Order, at *20. That rationale, we conclude, is incorrect, but not because a contradiction in a claim cannot produce indefiniteness. Rather, there is no contradiction in the claim language at issue in this case.

A reader seeking to understand “the scope of the invention,” Nautilus, 572 U.S. at 901, 134 S.Ct. 2120, is charged with knowing not only that any particular claim language must be “read in the context of the full claim,” Salazar v. AT&T Mobility LLC, 64 F.4th 1311, 1318 (Fed. Cir. 2023) (emphasis added), but also that “all limitations of a claim must be considered in deciding what invention is defined,” Hall v. Taylor, 332 F.2d 844, 848 (CCPA 1964) (per Rich, J.); see also Warner-Jenkinson Co. v. Hilton Davis Chemical Co., 520 U.S. 17, 29, 117 S.Ct. 1040, 137 L.Ed.2d 146 (1997) (“Each element contained in a patent claim is deemed material to defining the scope of the patented invention.”). In this context, as in other legal-interpretation settings, later text must be read along with earlier text to discern the meaning. Cf. Arkansas Game and Fish Commission v. United States, 568 U.S. 23, 36, 133 S.Ct. 511, 184 L.Ed.2d 417 (2012) (“But the first rule of case law as well as statutory interpretation is: Read on.”).

 

The case Mantissa Corporation v. First Financial Corporation (2024 WL 607717, decided on February 14, 2024, by the United States Court of Appeals for the Federal Circuit) is important for several reasons:

  1. Patent Law and Financial Technology:

    • The case involves patents related to financial technology (fintech), specifically addressing innovations in banking and financial services.
    • The outcome impacts the fintech industry, which is rapidly evolving with new technologies aimed at improving financial transactions, security, and user experience.
  2. Patent Validity and Enforcement:

    • The case addresses critical issues of patent validity, including challenges based on prior art and obviousness.
    • It also deals with enforcement issues, such as proving infringement and the applicability of specific patent claims to the accused products or services.
  3. Claim Construction:

    • The Federal Circuit’s decision provides guidance on claim construction, particularly in the context of fintech patents.
    • This guidance is valuable for patent practitioners and companies in drafting and interpreting patent claims related to software and business methods.
  4. Impact on Innovation and Competition:

    • A decision in favor of Mantissa Corporation could validate its patent claims and provide it with a competitive edge, potentially leading to licensing opportunities or settlements.
    • Conversely, a decision in favor of First Financial Corporation could encourage other companies to challenge similar patents, fostering competition and potentially reducing litigation risks in the industry.
  5. Precedents and Legal Standards:

    • The case sets important precedents for how courts may handle patent disputes in the fintech sector, particularly concerning the patentability of software and business methods.
    • It also reinforces or clarifies legal standards for evaluating patent claims and defenses in this rapidly growing field.
  6. Industry Practices:

    • The ruling could influence how fintech companies approach patenting their innovations and defending against infringement claims.
    • It may affect industry practices related to patent strategies, such as filing for patents, engaging in licensing negotiations, and pursuing or defending against litigation.

In summary, Mantissa Corporation v. First Financial Corporation is significant because it addresses key issues in patent law as they apply to the fintech industry, influences legal and business strategies within the sector, and contributes to the evolving landscape of patent jurisprudence in the context of financial technologies.

 

Case excerpts:

Because the specification and claims fail to provide adequate guidance as to the identity of the “transaction partner,” the term “transaction partner” is indefinite. In other cases, we have found terms to be indefinite when a POSA could not identify with reasonable certainty the identity of what the term refers to. See HZNP Medicines LLC v. Actavis Lab’ys UT, Inc., 940 F.3d 680, 689–91 (Fed. Cir. 2019) (finding the term “Impurity A” indefinite when “the written description provides no clue as to the identity of” it). Given the breadth of transactions described, the dearth of details defining the contours of “transaction partner” and the “individual categories” creates a “zone of uncertainty,” Nautilus, 572 U.S. at 909 (quoting United Carbon Co. v. Binney & Smith Co., 317 U.S. 228, 236 (1942)). The public is not apprised of what is claimed by the patent. See id. We agree with the district court that the term “transaction partner” is indefinite, and the asserted claims are invalid.

 

Do you have questions about your invention and filing a patent for it?  Call us at 914-908-6757 or send an e-mail to anthony@vernalaw.com for additional information from Verna Law, P.C.