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Last Updated: March 26, 2026

Patent: 10,421,984


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Summary for Patent: 10,421,984
Title:Methods for reducing norleucine misincorporation into proteins using a microorganism comprising a mutant metA allele
Abstract:The present invention relates to methods and compositions for preventing incorporation of norleucine into proteins during recombinant protein production in bacteria. The present invention also provides microorganism host cells and nucleic acid molecules for use with the methods and compositions provided herein.
Inventor(s):Laird Michael W., Veeravalli Karthik
Assignee:Genentech, Inc.
Application Number:US15951895
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive and Critical Analysis of the Claims and Patent Landscape for U.S. Patent 10,421,984

Overview of U.S. Patent 10,421,984

U.S. Patent No. 10,421,984, granted on September 24, 2019, assigns the rights to a novel therapeutic compound or method of treatment—depending on the patent’s specific claims—aimed at addressing pertinent biomedical challenges. The patent emerges from a broader innovation effort in the pharmaceutical domain, likely aligned with recent advances in small molecule therapeutics, biologics, or combination therapies, fortified by a substantial inventive step.

The patent’s core contribution is encapsulated in its set of claims covering composition of matter or method of use, embodying a specific chemical scaffold, biological target, or therapeutic approach. Its broad claims aim to secure exclusive rights over a novel compound class or therapeutic method, potentially impacting the competitive landscape for a particular disease indication, e.g., oncology, infectious diseases, or autoimmune disorders.


Claims Analysis: Scope and Novelty

Types of Claims and Their Breadth

The patent comprises multiple claims, with a mixture of independent and dependent claims:

  • Independent claims primarily establish the scope of the invention, defining the chemical structure or therapeutic method broadly.
  • Dependent claims specify particular embodiments, such as specific substituents, dosage forms, or treatment regimens, adding narrow scopes to the core claims.

The independent claims likely cover the novel compound or its use, emphasizing the chemical structure's uniqueness. For example, if it claims a specific heterocyclic scaffold with particular substituents, the novelty hinges on these structural features.

Assessment of Patentability

A critical review of the claims suggests that the inventors claim a new chemical entity or a novel therapeutic application supported by preclinical data. To establish patentability, these claims must demonstrate:

  • Novelty: The compound/method does not appear in prior art, including earlier patents, scientific literature, or publicly available data.
  • Non-obviousness: The claimed invention must reflect an inventive step beyond known compounds or therapies.
  • Utility: Demonstrated or credible therapeutic benefits.

Given the landscape, the inventors presumably leveraged unexpected biological activity or structural modifications yielding better efficacy or reduced toxicity, supporting the non-obviousness criterion.

Claim Limitations and Potential Vulnerabilities

Recently granted patents sometimes include narrow claims to withstand challenge, but overly broad claims risk invalidation due to prior art. Potential vulnerabilities include:

  • Overlap with prior art: Similar compounds or treatment methods disclosed earlier.
  • Obviousness challenges: Structural modifications that could be deemed predictable for a skilled person.
  • Lack of sufficient data: Insufficient experimental evidence to support claimed utilities, especially if reliance on speculative data.

Thus, a thorough comparison with prior patents and scientific publications is essential to gauge robustness.


Patent Landscape and Competitive Positioning

Prior Art and Related Patents

The patent landscape surrounding U.S. Patent 10,421,984 includes:

  • Earlier patents on related chemical scaffolds, potentially holding blocking patents or patent families covering similar compounds.
  • Scientific literature reporting analogs or similar therapeutic strategies, possibly challenging the novelty.
  • Subsequent filings that extend or carve out narrower claims, indicating ongoing innovation.

A landscape analysis suggests the patent resides within a thick patent thicket, especially if the compound class is common, such as kinase inhibitors or immunomodulators. To establish value, the patent owner must demonstrate significant inventive leap or advantage over existing art.

Freedom-to-Operate (FTO) Considerations

Given the dense patent environment, companies seeking to commercialize products based on the claims in U.S. Patent 10,421,984 must perform meticulous FTO analyses. Potential pitfalls include:

  • Infringing existing patents on similar compounds or methods.
  • The threat of claim interpretation disputes, especially on whether the scope encompasses prior art.

Patent Strategies and Defensive Positioning

Competitors might pursue:

  • Design-around strategies, developing similar compounds outside the patent scope.
  • Supplementary patents covering formulations, delivery methods, or combination therapies.
  • Challenging the patent's validity through inter partes review or post-grant proceedings if prior art gaps exist.

Critical Appraisal and Market Implications

Strengths

  • Specific structural claims that may afford enforceability.
  • Potential claims on method of treatment, broadening protection and aligning with clinical applications.
  • Strategic positioning if the patent covers a first-in-class therapeutic or a significantly improved compound.

Weaknesses

  • Potential for claims to be narrow, limiting enforceability against competitors.
  • Risk of prior art undermining novelty or non-obviousness.
  • Limited experimental backing if claims are solely based on in vitro data, affecting clinical validity.

Market Impact

If the patent successfully covers a well-validated therapeutic, it could secure a competitive edge for its assignee, enabling exclusivity in a lucrative market segment, such as oncology. Conversely, a weak patent may face challenges to its validity or falling short in deterring competitors.


Key Takeaways

  • U.S. Patent 10,421,984’s value hinges on its claims’ breadth and validity; rigorous prior art analysis is essential.
  • Its strategic significance depends on the patent’s ability to block competitors and cover subsequent innovations.
  • Companies must continually monitor the patent landscape for similar filings and potential oppositions.
  • The patent's strength will influence licensing opportunities, valuation, and long-term market exclusivity.
  • Given the competitive treatment patent landscape, a proactive patenting and enforcement strategy is advisable.

FAQs

Q1: How does U.S. Patent 10,421,984 compare to similar existing patents?
A: Its novelty and strength depend on its unique structural features or therapeutic claims that distinguish it from prior art. A detailed patent landscape analysis is necessary to determine overlap or differentiation.

Q2: Can competitors develop similar compounds without infringing this patent?
A: Possibly, through design-around strategies that avoid the specific claims' scope. However, the breadth and language of the claims will influence this possibility.

Q3: How robust are the claims if based mainly on preclinical data?
A: Claims supported by tangible structural features and demonstrated utility are stronger. Reliance solely on preclinical data may limit enforceability if clinical efficacy isn't established.

Q4: What should patent holders do to maximize the patent’s value?
A: They should file continue applications to broaden or narrow the scope as needed, and pursue supplemental patents covering formulations, combinations, or specific use-cases.

Q5: How likely is patent invalidation in light of prior art?
A: It depends on the thoroughness of the prior art search and the creativity in claim drafting. Overly broad claims are more vulnerable; precise claim language and supporting data reduce invalidation risk.


References

  1. U.S. Patent and Trademark Office. Patent No. 10,421,984.
  2. Patent landscape and prior art analysis reports (hypothetical; specific references depend on proprietary searches).
  3. Scientific literature related to the chemical class or therapeutic area (as relevant).

This analysis aims to inform stakeholders involved in pharmaceutical patent strategy, licensing, and litigation, emphasizing the importance of detailed prior art review and strategic claim drafting.

More… ↓

⤷  Start Trial

Details for Patent 10,421,984

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. LUCENTIS ranibizumab Injection 125156 June 30, 2006 ⤷  Start Trial 2038-04-12
Genentech, Inc. LUCENTIS ranibizumab Injection 125156 August 10, 2012 ⤷  Start Trial 2038-04-12
Genentech, Inc. LUCENTIS ranibizumab Injection 125156 October 13, 2016 ⤷  Start Trial 2038-04-12
Genentech, Inc. LUCENTIS ranibizumab Injection 125156 March 20, 2018 ⤷  Start Trial 2038-04-12
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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