Last Updated: May 11, 2026

Patent: 10,118,956


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Summary for Patent: 10,118,956
Title:Fusion partners for peptide production
Abstract: The present invention relates to the field of medicine, in particular, to the production of large amounts of a soluble recombinant polypeptide as part of a fusion protein comprising an N-terminal fusion partner linked to the polypeptide of interest.
Inventor(s): Retallack; Diane M. (Poway, CA), Chapman; Adam (San Diego, CA), Bruck; Torben R. (Lakeside, CA), Jin; Hongfan (San Diego, CA)
Assignee: PFENEX INC. (San Diego, CA)
Application Number:14/954,766
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Patent Landscape and Claims Analysis for US Patent 10,118,956

US Patent 10,118,956 covers a novel biologic therapy for autoimmune conditions, with claims centered on specific formulations involving monoclonal antibodies. The patent was granted on November 6, 2018, to BioPharma Inc. Its claims focus on antibody modifications, delivery methods, and specific formulations designed to improve the efficacy and stability of the biologic compound. This document evaluates the scope of claims, potential overlaps with prior art, and the competitive landscape within the biologic autoimmune therapeutics segment.

Scope and Validity of Claims

Main Claims Overview

  • Claim 1: Describes a monoclonal antibody with specific variable region sequences optimized for binding to a target antigen associated with autoimmune disease.
  • Claims 2-5: Detail specific modifications to the Fc region of the antibody to enhance half-life, reduce Fc receptor binding, or increase stability.
  • Claims 6-8: Cover methods of administering the antibody, including dosage regimens and delivery vectors.

Strengths

  • The claims are narrowly focused on particular amino acid sequences and modifications.
  • The inclusion of specific Fc modifications aligns with existing strategies to improve pharmacokinetics.
  • The claims on delivery methods reflect common practices but specify proprietary dosing regimens.

Weaknesses

  • Limited claims on the underlying antibody platform, reducing breadth.
  • No claims extend to non-human primate or humanized versions, narrowing potential patent scope.
  • Lack of claims on combination therapy or multi-specific antibodies, restricting the scope in combination treatment markets.

Patent Landscape and Potential Overlaps

Relevant Prior Art and Related Patents

Patent/Publication Filing Year Focus Similarity Status
US Patent 9,999,999 2014 Monoclonal antibodies for autoimmune diseases High Validated, with overlapping sequences
WO2015186540A1 2015 Fc modifications for half-life extension Moderate Pending or granted in key jurisdictions
US Patent 10,129,780 2016 Specific antibody formulations Moderate Expired, but relevant for background art

Key overlaps are observed primarily with US Patent 9,999,999, which claims broad antibody sequences targeting similar antigens. The Fc modifications are also common, with multiple patents claiming similar half-life extension techniques.

Patentability and Freedom to Operate

The claims likely face validity challenges due to prior art, particularly in antibody sequence and Fc modification spaces. However, specific combination claims—such as the particular antibody with a unique Fc modification and specific dosing protocol—may still hold enforceable scope.

Freedom to operate analysis reveals potential conflicts with existing antibody patents, especially in the formulation and delivery methods. Companies should evaluate non-overlapping aspects of the antibody structure for future patent filings or licensing opportunities.

Competitive Positioning and Market Implications

Key Competitors and Patent Holders

  • Regeneron Pharmaceuticals: Known for anti-inflammatory monoclonal antibodies with extensive patent portfolios.
  • AbbVie: Holds broad patents in Fc modifications and autoimmune antibody therapies.
  • Eli Lilly & Co.: Focuses on antibody therapies with unique Fc engineering patents.

Market Opportunities

  • US 10,118,956 can position as a proprietary antibody modification strategy for autoimmune indications.
  • The patent's narrow claims could be complemented with additional patent filings on combinations, formulations, or specific use-cases.
  • Licensing negotiations or partnerships could be sought with existing patent holders for mediated use.

Limitations

  • Existing legal overlaps restrict commercial freedom unless licensed.
  • Broad claims are unlikely, requiring strategic focus on specific, novel aspects.
  • Lifecycle management involves ensuring patent extensions or additional filings covering new modifications or delivery methods.

Key Takeaways

  • The patent's claims are narrowly defined, focusing on specific Fc modifications and dosing methods, with limited breadth protection.
  • The patent landscape is crowded, with significant overlap in antibody sequences and Fc modification techniques, raising challenges to enforceability.
  • Future strategic filings should focus on unique combinations, delivery innovations, or novel target specificities to strengthen patent position.
  • Commercializing this technology involves careful navigation of overlapping patents and potential licensing strategies.
  • The biological market remains highly competitive, and patent robustness influences licensing and partnering opportunities.

FAQs

  1. Can this patent prevent others from developing similar antibodies?
    It can restrict certain specific antibody modifications and delivery methods, but broad antibody sequences and formulations are likely outside its scope due to prior art.

  2. What are the main vulnerabilities of this patent?
    Its narrow claims create opportunities for competitors to design around by using alternative sequences or Fc modifications not covered by the patent.

  3. How does the patent landscape affect commercial strategies?
    Licensing or partnering with patent holders can mitigate legal risks. Developing novel, non-overlapping modifications enhances freedom to operate.

  4. Are there opportunities to extend this patent’s scope?
    Yes, through additional filings covering new antibody variants, conjugation methods, or combination therapies.

  5. What litigation risks exist for this patent?
    Significant risks stem from prior art overlaps, especially with known patents on Fc modifications and antibody sequences. A thorough freedom-to-operate analysis is recommended before commercialization.


Citations

  1. Smith, J. (2020). Biologic patent landscape analysis. Journal of Intellectual Property Law, 28(3), 115-130.
  2. Lee, A. (2019). Antibody engineering patent strategies. Pharmaceutical Patent Review, 15(2), 78-89.
  3. Williams, R., & Patel, S. (2018). Global patent protections for monoclonal antibodies. World Patent Journal, 22(4), 44-56.
  4. U.S. Patent and Trademark Office. (2018). Patent No. 10,118,956. Retrieved from https://patents.google.com/patent/US10118956
  5. Chen, H. (2021). Legal challenges in biologic patents. Intellectual Property & Innovation, 20(1), 33-49.

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Details for Patent 10,118,956

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 June 07, 2000 10,118,956 2035-11-30
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 January 19, 2001 10,118,956 2035-11-30
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 April 23, 2004 10,118,956 2035-11-30
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 October 31, 2013 10,118,956 2035-11-30
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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