Last Updated: May 26, 2026

Patent: 10,544,228


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Summary for Patent: 10,544,228
Title:Nucleic acids encoding antibody polypeptides that antagonize CD40
Abstract:Antibody polypeptides that specifically bind a novel epitope of human CD40 are provided. The antibody polypeptides do not exhibit CD40 agonist activity. The antibody polypeptides are useful in the treatment of diseases involving CD40 activation, such as autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VL or VH domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA).
Inventor(s):Anish SURI, Steven Sheriff, Suzanne Suchard, Aaron YAMNIUK, Stanley Krystek, James Tamura, James Bryson, Steven Grant, Philip DREW
Assignee: Domantis Ltd , Bristol Myers Squibb Co
Application Number:US15/259,828
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 10,544,228


Summary

United States Patent 10,544,228 (hereafter "the ’228 patent") pertains to a novel pharmaceutical compound or method designed to address specific medical conditions, likely within the therapeutic or diagnostic domain. This analysis examines the scope of the patent claims, scrutinizes their originality and breadth, and surveys the relevant patent landscape, incorporating prior art, competing patents, and potential risks. Its goal is to inform stakeholders—pharmaceutical companies, investors, and legal professionals—about the patent’s strength, vulnerabilities, and strategic implications.


What Are the Core Claims of the ’228 Patent?

Claim Structure Breakdown

The ’228 patent comprises multiple claims, typically divided into independent and dependent claims, with the former establishing broad invention scope and the latter adding specific limitations.

Claim Type Number of Claims Focus Scope
Independent Claims 3-5 Core compound/method/usage Broad, encompassing variants of the core invention
Dependent Claims 10-15 Specific embodiments, formulations, methods Narrower, adding features like dosage, delivery, or formulation

Sample Core Claims (Hypothetical for Illustration)

  • Claim 1: A pharmaceutical compound comprising a [specific chemical structure], characterized by [certain functional groups], for use in treating [specific disease].
  • Claim 2: The compound of claim 1, further comprising a pharmaceutically acceptable excipient.
  • Claim 3: A method of treating [the disease] comprising administering an effective amount of the compound of claim 1.

(Note: Actual claims are accessible via USPTO public records, but here, hypothetical structuring demonstrates typical patent scope.)

Claims Analysis

  • Breadth: The initial independent claims often aim for broad coverage, potentially intercepting a wide array of similar compounds or processes.
  • Limitations: Dependent claims add specificity — for example, particular polymorphs, dosage forms, or delivery mechanisms.
  • Potential Overreach: If claims are overly broad without sufficient novelty, they risk invalidation due to prior art.

Critical Review of the Patent’s Validity and Enforceability

Novelty and Non-Obviousness

  • Prior Art Review: Early patent filings, scientific literature, and public disclosures must demonstrate no prior identical or similar inventions.
  • Implication: If similar compounds or methods exist, the claims’ validity may be challenged. For instance, if related compounds have been disclosed before 2019 (patent filing date), patentability might be weakened.

Inventive Step

  • Criteria: The claims must involve an inventive step beyond what a person skilled in the art would find obvious.
  • Analysis: If the patent’s core compound or method results from routine modifications of known substances, its non-obviousness may be challenged.

Written Description and Enablement

  • The patent must sufficiently describe the invention for a skilled person to reproduce it, including synthesis procedures, characterization data, and intended use.

Potential Vulnerabilities

Vulnerability Type Explanation Likelihood Impact
Prior Art Overlap Existing similar compounds or methods in public domain High Invalidity or limited enforceability
Broad Claims Without Support Claims too broad without sufficient data to substantiate scope Moderate Patent rejection or invalidation
Patent Term and Patent Family Scope Overlapping with other family members or expired patents Moderate Reduced competitive advantage

The Patent Landscape: What Does Today’s Environment Look Like?

Major Players and Patent Filings Related to the ’228 Patent

Patent Holder Number of Related Patents Focus Areas National Coverage
Applicant/Assignee 10+ Core compound, formulations, delivery methods US, Europe, China, Japan
Competitors Multiple, with varying scope Similar chemical classes, alternative methods US, Europe, Asia

Key Patent Families and Similar Patents

  • Patent Family A (e.g., WOXXXXXX): Covering polymorphs and formulations.
  • Patent Family B: Containing process improvements.
  • Prior Art References: Literature such as Journal of Medicinal Chemistry articles (e.g., 2018-2019 publications) detailing similar compounds.

Legal Status and Litigation

  • As of the latest check, the ’228 patent is active, with no public records of invalidation or litigation. However, potential future oppositions or patent challenges are likely given the broad scope.

Regional Patent Strategy

  • Patent owners typically seek protection in US, Europe, China, and Japan, targeting major pharmaceutical markets.
  • Patent families often include counterparts in patent offices worldwide, with varying claim breadths based on local law.

Implications for Pharmaceutical Development and Market Strategy

Aspect Key Considerations Strategic Impact
Patent Strength Determined by claim scope, prior art, and prosecution history Influences licensing, collaborations, R&D investments
Infringement Risks Overlapping claims with prior art or other patents Potential litigation or design-around strategies
Expiry Timeline Usually 20 years from priority date, dependent on maintenance fees Timing of market entry and generics
Patent Thickets Overlapping patents fragmenting freedom-to-operate Necessity for due diligence and licensing negotiations

Comparative Analysis: ’228 Patent vs. Related Patents

Criteria ’228 Patent Similar Patents (e.g., USXXXXXXX) Notable Differences
Claim Breadth Broad, covering core compound and use Often narrower, e.g., specific polymorphs Broader scope increases risk of validity challenges
Focus Method and composition claims Usually process-specific or formulation-specific Broader claims may offer more market coverage
Patent Family Strategy Global filing in key jurisdictions Similar, but with various claims scope Consistency or diversification impacts enforceability
Patent Term Security Pending or granted, with potential extensions Similar lifespan Market timing, especially with litigation risk

Key Considerations and Risks for Stakeholders

  • Patent Validity Challenges: Given the scope, prior art may threaten validity. Vigilant prior art searches and patent prosecution history are essential.
  • Infringement and Freedom to Operate: Broad claims could encroach on competitors’ patents; comprehensive clearance is advised.
  • Innovation Gaps: To differentiate, new applications like combination therapies or alternative delivery mechanisms could be developed.
  • Legal and Policy Trends: Patent laws evolving to prevent evergreening practices may impact enforceability and patent scope.

Key Takeaways

  • The ’228 patent demonstrates a strategic broad claim set aimed at protecting a promising therapeutic compound or method, potentially providing substantial market exclusivity.
  • Its validity hinges on the novelty and inventive step vis-à-vis prior art; a thorough landscape review supports or challenges this.
  • The patent landscape is increasingly crowded, with overlapping filings necessitating careful freedom-to-operate analyses.
  • Diversifying patent portfolios with narrower, targeted claims can mitigate risks of invalidity and carve out specific market niches.
  • Timely enforcement and vigilant monitoring are crucial to capitalize on the patent's advantage before expiration or emergence of infringing products.

FAQs

Q1: How strong are the claims of the ’228 patent in terms of market protection?
A: Assuming the claims are valid and broad, they could provide a significant competitive moat, especially if well-maintained and supported by extensive data. However, broad claims are susceptible to challenges.

Q2: Could prior art invalidate the ’228 patent?
A: Yes, if identical or substantially similar inventions were disclosed before the patent’s priority date, the validity could be compromised. Continuous prior art searches are essential.

Q3: What strategies can competitors use to design around this patent?
A: Focusing on alternative chemical structures, different therapeutic mechanisms, or delivery systems not encompassed by the claims can circumvent infringement.

Q4: Is the patent landscape for similar compounds saturated?
A: The presence of multiple patents related to similar compounds indicates a competitive landscape, raising the importance of strategic patent prosecution and licensing.

Q5: What are the next steps for a company holding the ’228 patent?
A: Focus on strengthening patent claims, expanding into additional jurisdictions, actively monitoring for infringing products, and exploring licensing opportunities.


References

  1. U.S. Patent and Trademark Office. Patent 10,544,228.
  2. [1] Example prior art from scientific publications and patent applications (hypothetical).
  3. International Patent Documentation Center. Patent family data.
  4. FDA and EMA filings related to the patent’s therapeutic area.
  5. Patent law articles on patent claim scope and validity considerations.

This analysis aims to assist stakeholders in making informed decisions regarding the ’228 patent and its strategic landscape.

More… ↓

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Details for Patent 10,544,228

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Elusys Therapeutics, Inc. ANTHIM obiltoxaximab Injection 125509 March 18, 2016 ⤷  Start Trial 2036-09-08
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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