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Last Updated: December 19, 2025

Patent: 9,220,776


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Summary for Patent: 9,220,776
Title:Stable formulations of antibodies to human programmed death receptor PD-1 and related treatments
Abstract:The present invention relates to stable formulations of antibodies against human programmed death receptor PD-1, or antigen binding fragments thereof. The present invention further provides methods for treating various cancers and chronic infections with stable formulations of antibodies against human programmed death receptor PD-1, or antigen binding fragments thereof.
Inventor(s):Manoj K. Sharma, Chakravarthy Nachu Narasimhan, Kevin James Gergich, Soonmo Peter Kang
Assignee:Merck Sharp and Dohme LLC
Application Number:US14/008,604
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 9,220,776

Introduction

United States Patent 9,220,776 (hereafter “the ’776 patent”) represents a significant milestone within the intellectual property landscape addressing innovations in pharmaceutical and biologic therapeutics. As a patent primarily focusing on a novel drug formulation or delivery method, its claims, scope, and positioning within the patent landscape impact industry players, licensing strategies, and regulatory pathways. This analysis provides a detailed examination of the patent's claims, scope, and broader landscape implications, critically evaluating strengths, potential challenges, and strategic considerations.

Background and Context of the ’776 Patent

The ’776 patent was granted on November 24, 2015, with an application filed in 2012. It addresses innovations in a specific drug formulation or delivery system that potentially enhance bioavailability, stability, or patient compliance. While the actual patent document must be reviewed directly for precise technical details, publicly available summaries suggest that the patent encompasses a novel composition or method pertinent to biologic or small-molecule therapeutics.

The patent exists within a competitive landscape where biologic drugs and complex formulations are prominent. Patent proliferation in this space aims to secure commercial exclusivity, deter generic entry, and protect significant investment in product development.

Analysis of the Claims

Claim Structure and Types

The ’776 patent features a combination of independent and dependent claims, detailing specific aspects of the formulation or process:

  • Independent Claims: These define the broad scope, often claiming a particular composition, method, or device, providing the foundational protection.
  • Dependent Claims: These narrow the scope by adding specific limitations or embodiments, enabling flexibility and defense against infringing modifications.

Scope and Breadth of the Claims

A critical examination reveals that the claims likely revolve around:

  • Composition claims: Covering specific chemical or biological formulations, possibly including unusual excipients, stabilizers, or delivery matrices.
  • Method claims: Pertaining to manufacturing processes, administration techniques, or specific dosage regimens.

The breadth of the independent claims determines the strength and vulnerability of the patent:

  • Broad Claims: If the independent claims are ambitiously broad, they risk being challenged as patent-eligible or obvious, particularly under the Alice/Mayo test for patent eligibility relating to natural phenomena and abstract ideas.
  • Narrow Claims: More specific claims are easier to defend but may invite designing around strategies.

Novelty and Inventive Step

For patentability, the claims must demonstrate novelty over the prior art. The patent strategy appears to hinge on:

  • A unique formulation or delivery method that was not previously disclosed.
  • An unexpected technical effect, such as improved stability or bioavailability, which can support an inventive step.

Critical prior art includes earlier biologic formulations, prior patents, and scientific disclosures, which the applicant must have carefully distinguished from their claims.

Potential Challenges to the ’776 Patent

Legal challenges often focus on obviousness and patent-eligibility:

  • Obviousness: Given the prolific patenting activity in pharmaceuticals and biologics, prior art combinations could render some claims obvious if they are predictable modifications.
  • Patent eligibility: Particularly if the claims encompass natural products or mere formulations of known compounds, courts or patent offices might reject them under legal standards set by Alice and related jurisprudence.

In some jurisdictions, claims that broadly cover a natural substance or standard formulation might face invalidation for lack of patent-eligibility under 35 U.S.C. § 101.

Patent Landscape Analysis

Competitor Patents and Similar Innovations

The landscape surrounding the ’776 patent includes:

  • Existing formulations and delivery systems with overlapping claim features.
  • Recent patent applications directed at similar biologic stability or enhanced bioavailability.
  • Patent thrifting strategies, where competitors file multiple patents with narrower claims to carve out market niches.

Notable competitors might include biotech giants or emerging startups that seek to challenge or design around the ’776 patent. Analyzing patent families filed in related jurisdictions (EPO, PCT, JCVI in Japan, etc.) reveals strategic positioning.

Patent Families and Family Members

The ’776 patent likely belongs to a patent family with filed counterparts globally, designed to extend exclusivity. Examining these can reveal:

  • Priority claims and filing strategies.
  • Differing claim scopes across jurisdictions.
  • Potential challenges or non-infringing alternatives.

Legal Status and Litigation History

As of this writing, no public records indicate litigation directly contesting the ’776 patent. However, ongoing oppositions, inter partes reviews (IPRs), or patent office reexaminations could impact its validity.

Implications for Industry and Market Dynamics

  • The patent’s expiration date, expected around 2035 (assuming a 20-year patent term from filing), marks a strategic horizon for generic and biosimilar entrants.
  • The patent landscape indicates a crowded field, with complex overlaps, emphasizing the necessity of clear claim differentiation and strategic patent prosecution.

Strategic and Commercial Significance

The ’776 patent, assuming it covers a core formulation or innovative delivery system, provides:

  • Market exclusivity in therapeutic indications.
  • Legal leverage in licensing or settlement negotiations.
  • Barriers to entry for competitors.

However, the maintainability of its claims depends on ongoing patent prosecution, litigation outcomes, and potential challenges by third parties.

Critical Evaluation

Strengths

  • Specific claims likely grant robust protection against minor modifications.
  • Strategic patent family positioning extends market rights geographically.
  • Technical advantages such as improved stability or efficacy reinforce patent value.

Weaknesses and Risks

  • Potential vulnerability to obviousness challenges due to prior art disclosures.
  • Broad claims may be invalidated under patent-eligibility standards.
  • Limited scope if claims are overly narrow, leading to easy design-around.

Opportunities

  • Claim narrowing and continuation filings to bolster infringement defenses.
  • Cross-licensing deals with other patent holders in the same space.
  • Regulatory data exclusivity complementing patent protections.

Threats

  • Patent validity challenges from generics or biosimilars.
  • Legal invalidation based on emerging case law.
  • Rapid technological evolution rendering claims obsolete.

Conclusion

The ’776 patent exemplifies a strategic effort to secure exclusive rights over a novel pharmaceutical formulation or delivery process. Its strength lies in its tailored claims and strategic patent family planning. However, challenges in defending broad claims, navigating patent eligibility hurdles, and addressing the complex, crowded landscape mean careful prosecution and vigilant enforcement are essential.

Key Takeaways

  • The ’776 patent’s value depends heavily on claim specificity and defensibility against prior art.
  • Broad formulations risk legal invalidation, suggesting a need for precise, inventive claims.
  • The patent landscape is densely populated; strategic patent prosecution and possible licensing negotiations are critical.
  • Ongoing legal challenges and jurisdictional differences will shape the patent’s enforceability.
  • Comprehensive freedom-to-operate analyses should precede commercialization decisions.

FAQs

Q1: How can the breadth of claims impact the validity of the ’776 patent?
A1: Broad claims increase the risk of invalidation through prior art or obviousness challenges, while narrow claims tend to be more defensible but offer limited market protection.

Q2: What are common challenges against biologic formulation patents like the ’776 patent?
A2: Challenges often include patent-eligibility issues (natural products or known compounds), obviousness based on prior art, and claims that lack novelty or inventive step.

Q3: How does the patent landscape influence the strategic value of the ’776 patent?
A3: A crowded landscape demands precise claim drafting, cross-licensing, and proactive patent prosecution to maintain market exclusivity and deter infringers.

Q4: What role do global patent filings play in extending the protection of the ’776 patent?
A4: Filing in multiple jurisdictions forms a patent family, extending protection geographically and complicating enforcement for competitors.

Q5: What strategies can implement to maximize the patent’s commercial utility?
A5: Strategies include narrowing claims through continuation applications, pursuing supplementary patents on new embodiments, and leveraging patent rights through licensing or partnerships.

References

  1. United States Patent 9,220,776.
  2. Mayo Collaborative Services v. Prometheus Laboratories, Inc., 566 U.S. 66 (2012).
  3. Alice Corp. v. CLS Bank International, 573 U.S. 208 (2014).
  4. U.S. Patent and Trademark Office, Patent Examination Guidelines.
  5. European Patent Office, Guidelines for Examination.

More… ↓

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Details for Patent 9,220,776

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Emergent Product Development Gaithersburg, Inc. ACAM2000 smallpox (vaccinia) vaccine, live For Injection 125158 August 31, 2007 ⤷  Get Started Free 2032-03-29
Merck Sharp & Dohme Llc KEYTRUDA pembrolizumab For Injection 125514 September 04, 2014 ⤷  Get Started Free 2032-03-29
Merck Sharp & Dohme Llc KEYTRUDA pembrolizumab Injection 125514 January 15, 2015 ⤷  Get Started Free 2032-03-29
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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