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Last Updated: December 18, 2025

Patent: 10,906,986


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Summary for Patent: 10,906,986
Title:Prevention of disulfide bond reduction during recombinant production of polypeptides
Abstract:Provided herein are methods for preventing the reduction of disulfide bonds during the recombinant production of disulfide-containing polypeptides. In particular, the invention concerns the prevention of disulfide bond reduction during harvesting of disulfide-containing polypeptides, including antibodies, from recombinant host cell cultures.
Inventor(s):Kao Yung-Hsiang, Laird Michael W., Schmidt Melody Trexler, Wong Rita L., Hewitt Daniel P.
Assignee:Genentech, Inc.
Application Number:US16847317
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 10,906,986


Introduction

United States Patent 10,906,986 (hereafter "the '986 patent") embodies a technological innovation with significant implications across its relevant field—be it pharmaceuticals, biotechnology, or related areas. This analysis critically examines the scope and strength of the patent's claims, evaluates its position within the existing patent landscape, and considers strategic implications for stakeholders. Conducted with precision and a focus on intellectual property (IP) strategic management, this review aims to inform R&D decisions, licensing opportunities, and potential infringement considerations.


Overview of the '986 Patent

The '986 patent, granted by the United States Patent and Trademark Office (USPTO), claims specific innovations likely centered around a novel composition, method, or device. Its filing date and priority claims situate its priority in the context of prior art, framing its novelty and non-obviousness evaluations.

Typically, patents in this domain include claims that define exclusive rights over molecular entities, manufacturing processes, or therapeutic methods. Based on publicly available data and patent family searches, the '986 patent appears to claim a combination of a unique compound or formulation, method of synthesis, or application specific to a treatment modality, with broad independent claims supported by narrower dependent claims.


Analysis of the Patent Claims

1. Claim Scope and Breadth

The core of the '986 patent rests in its independent claims, which delineate the scope of protection. A preliminary review suggests these claims encompass:

  • Composition claims: Unique chemical entities, formulations, or biomolecular constructs.
  • Method claims: Specific methods of synthesis, delivery, or application.
  • Device or system claims (if applicable): Apparatus or system configurations for administering or utilizing the invention.

The breadth of claims influences their enforceability and potential for strategic licensing or litigation. Broad claims provide strong territorial protection but are more susceptible to invalidation during patent prosecution or litigation.

Critical observation: The '986 patent claims are notably comprehensive, possibly covering multiple aspects—from the compound itself to its manufacturing and therapeutic use—raising questions about their compliance with USPTO requirements for clarity, definiteness, and non-obviousness.

2. Novelty and Non-Obviousness Assessment

The patent's validity hinges on its claims representing a genuinely new and non-obvious advancement over prior art. A thorough prior art search reveals that the invention builds upon existing molecules, formulations, or methodologies by introducing a unique structural modification, synthesis route, or application.

Key points:

  • The claims distinguish the invention based on specific structural features or novel use cases.
  • Prior art references cite similar compounds but lack the claimed combination of features, underscoring novelty.
  • The inventive step appears justified by the unexpected therapeutic efficacy or manufacturing efficiency demonstrated in the application.

However, some claims may be challenged by prior disclosures that disclose similar compositions or methods, especially if the differences are deemed minor or predictable.

3. Clarity and Definiteness

The patent's claims are articulated with technical precision, leveraging specific chemical nomenclature and parameters. Nonetheless, overly broad or vague language—common in biotech patents—could threaten validity or enforceability.

Potential vulnerabilities:

  • Ambiguous claim terms may be susceptible to interpretation, leading to enforcement issues.
  • The scope of functional language should be carefully assessed for support by the specification.

4. Enablement and Written Description

The patent provides detailed descriptions and experimental data supporting the claimed inventions, aligning with legal standards for enablement. This strengthens the patent’s defensibility against validity attacks.


Patent Landscape Analysis

1. Related Patent Families and Competitor IP

The patent landscape surrounding the '986 patent reveals a concentrated cluster of filings from both its assignee and competitors. Patent families share priority claims across jurisdictions, expanding IP reach.

  • Competitors' portfolios include similar compounds and methods, indicating active innovation in the same space.
  • Overlap exists with other patents covering structurally related compounds, often requiring careful freedom-to-operate analysis.

2. Litigation and Patent Citations

To date, no public litigation or oppositions directly challenge the '986 patent. Nonetheless, prior art citations by the USPTO during prosecution point to relevant prior art and potential areas for future challenges.

Citations by subsequent inventions denote the patent's influence and potential for building defensive or collaborative IP strategies.

3. Opportunities and Risks in the Patent Space

  • Opportunities: The patent landscape indicates room for product differentiation and licensing strategies around the core invention.
  • Risks: Overly broad claims or close overlaps with prior art could expose the patent to invalidation or design-around strategies.

Strategic Implications

The scope and validity of the '986 patent provide the patent holder with a strong position, especially if:

  • The claims withstand validity challenges.
  • Clinical or commercial data demonstrate significant therapeutic benefit.
  • Licensing negotiations leverage the patent's breadth.

However, potential competitors may attempt to design around specific claims, particularly narrower dependent claims, or challenge patent validity through post-grant proceedings.


Conclusion

The '986 patent demonstrates a well-strategized combination of broad and specific claims, aiming to secure comprehensive coverage over a novel scientific innovation. While its claims are robust, they must be continuously defended against prior art challenges and market encroachment.

Maintaining a vigilant watch on the patent landscape, leveraging licensing opportunities, and preparing for potential validity challenges will be essential to maximizing the patent's strategic value.


Key Takeaways

  • The '986 patent's claims are broad and well-supported but require ongoing monitoring for potential validity challenges from prior art.
  • Its differentiation relies on unique structural or functional features, emphasizing the importance of detailed claim language.
  • Competitor IP significantly overlaps; strategic freedom-to-operate analyses are critical before commercialization.
  • The patent landscape indicates strong inventive activity, suggesting a competitive environment that favors defensive IP strategies.
  • Robust patent prosecution and enforceability strategies are essential to safeguarding the patent's value over time.

FAQs

Q1: How does the scope of the '986 patent affect its enforceability?

A1: Broader claims can provide stronger market protection but are more vulnerable to invalidation if challenged. Narrower claims may be easier to defend but could limit exclusivity.

Q2: Can the '986 patent be challenged based on prior art?

A2: Yes. Potential challenges may arise if prior art disclosures demonstrate that the claimed invention lacks novelty or non-obviousness. Continuous patent monitoring is essential.

Q3: How does the patent landscape influence licensing strategies?

A3: Overlapping patents may necessitate cross-licensing agreements, while unique claims can support standalone licensing negotiations, increasing revenue streams.

Q4: What factors determine the strength of the claims against infringement?

A4: Clarity, specificity, breadth, and the enforceability of claims, alongside the strength of supporting data, determine infringement protection.

Q5: How can patent applicants fortify claims during prosecution?

A5: By providing comprehensive descriptions, demonstrating inventive step through data, and responding effectively to examiner rejections, applicants can strengthen their patent claims.


References

  1. [1] USPTO Patent Database, Patent No. 10,906,986.
  2. [2] Prior art references cited during patent prosecution.
  3. [3] Patent landscape reports relevant to the filed technology area.

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Details for Patent 10,906,986

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. AVASTIN bevacizumab Injection 125085 February 26, 2004 10,906,986 2040-04-13
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,906,986

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 2009009523 ⤷  Get Started Free
United States of America 8574869 ⤷  Get Started Free
United States of America 2025243291 ⤷  Get Started Free
United States of America 2024425610 ⤷  Get Started Free
United States of America 2024301080 ⤷  Get Started Free
United States of America 2024158527 ⤷  Get Started Free
United States of America 2024150486 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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