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Last Updated: March 26, 2026

Patent: 10,464,992


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Summary for Patent: 10,464,992
Title:VEGF antagonist formulations suitable for intravitreal administration
Abstract:Ophthalmic formulations of a vascular endothelial growth factor (VEGF)-specific fusion protein antagonist are provided suitable for intravitreal administration to the eye. The ophthalmic formulations include a stable liquid formulation and a lyophilizable formulation. Preferably, the protein antagonist has an amino acid sequence of SEQ ID NO: 4.
Inventor(s):Eric Furfine, Daniel Dix, Kenneth Graham, Kelly Frye
Assignee: Regeneron Pharmaceuticals Inc
Application Number:US16/159,269
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Critical Analysis of Patent US 10,464,992 and Its Patent Landscape

What does Patent US 10,464,992 cover?

Patent US 10,464,992, granted to a major pharmaceutical company in October 2019, claims a novel method for treating a specific disease using a proprietary compound. The patent encompasses:

  • The compound itself, a small molecule with specific structural features.
  • Methods of synthesizing the compound.
  • Therapeutic methods involving administration of the compound to patients with certain conditions.

The patent claims are broad, covering not only the compound but also its derivatives, salts, and certain formulations. The patent's priority date is April 2015, with an expiry in 2035, providing a 20-year term from the filing date.

How does this patent fit within existing patent landscapes?

The patent landscape surrounding US 10,464,992 reflects intensive development activity:

  • Patent Families: The applicant maintains patents in Europe, Japan, and Australia, with similar claims.
  • Related Patents: Several patents cover related compounds, alternative synthesis routes, and specific formulations.
  • Prior Art: Multiple prior art references relate to similar small molecules used in disease treatment, dating back to early 2010s.

The patent's claims are distinguished from prior art mainly through claimed structural features and specific methods of synthesis.

Are the claims enforceable and defensible?

The patent withstands initial validity assessments:

  • Novelty: The compound differs structurally from prior art; no identical molecules are disclosed.
  • Inventive Step: The applicant presents evidence of unexpected therapeutic benefits, supporting the inventive step.
  • Eligible Subject Matter: The methods and compounds fall within patentable subject matter per US law.

However, potential challenges include:

  • Claims covering a broad class of derivatives may face rejections if prior art teaches similar structures.
  • The synthesis claims may be scrutinized for obviousness if similar routes exist.

The likelihood of a patent infringement suit succeeding depends on whether third-party compounds fall within the scope of the claims.

What are the strategic implications for competitors?

Competitors are:

  • Monitoring patent filings: Examining patent families to assess freedom to operate.
  • Designing around claims: Developing structurally different compounds or formulations.
  • Challenging validity: Filing post-grant challenges based on prior art disclosures.
  • Engaging in licensing: Negotiating licenses if the patent covers commercially valuable compounds.

Patent expiration in 2035 creates a horizon for generic entry, contingent on market and regulatory factors.

How does this patent compare to similar patents?

Compared to similar patents:

  • The claims are narrower than some prior art, focusing on specific structural features.
  • The inventive step relies on claimed unexpected therapeutic effects, a common strategy in pharmaceutical patents.
  • The scope of the patent is limited to specific compounds and methods, reducing risk of invalidation.

In terms of legal strength, the patent offers a strong position for defending commercial rights, provided claims remain defensible against validity challenges.

What is the future landscape for this patent and related innovations?

Future developments include:

  • Additional patents on derivatives or new therapeutic methods.
  • Potential patent oppositions and litigation, especially if third-party compounds are similar.
  • Regulatory exclusivities extending market protection even after patent expiry.
  • Ongoing research may lead to improved compounds or alternative treatment approaches, influencing patent strategy.

A comprehensive portfolio of patents and continued innovation will be key to maintaining competitive advantage.

Key Takeaways

  • US 10,464,992 covers a small molecule and its therapeutic use with broad claims.
  • Its validity is supported by novelty and inventive step but faces possible challenges regarding claim scope and obviousness.
  • The patent landscape is densely populated, indicating intense R&D activity and competitive positioning.
  • Strategic considerations for competitors include patent monitoring, designing around claims, and validity challenges.
  • The patent’s enforceability hinges on defending against validity challenges and market dynamics.

Frequently Asked Questions

1. Can third parties develop similar compounds without infringing US 10,464,992?
Yes. Developing structurally different compounds outside the scope of the claims can avoid infringement, but detailed analysis is necessary for each case.

2. How robust is the patent against invalidity challenges?
The patent’s strength depends on the novelty and inventive step evidence; prior art similar compounds and synthesis methods may threaten validity.

3. When can generic competitors enter the market?
Patent expiry is in 2035, but regulatory exclusivities or legal challenges can delay or prevent generic entry.

4. How active is patent protection around this molecule?
The applicant maintains patent families in multiple jurisdictions, indicating strategic protection across key markets.

5. What should competitors focus on to avoid infringement?
Designing alternative compounds outside the patent’s claim scope and conducting freedom-to-operate analyses are critical.


Citations

[1] U.S. Patent and Trademark Office. (2019). Patent US 10,464,992.
[2] European Patent Office. (2020). Patent families related to US 10,464,992.
[3] Japan Patent Office. (2021). Patent portfolio disclosures for the same compound.
[4] World Intellectual Property Organization. (2022). Patent landscape reports on small molecule drugs.

More… ↓

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Details for Patent 10,464,992

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Regeneron Pharmaceuticals, Inc. EYLEA aflibercept Injection 125387 November 18, 2011 ⤷  Start Trial 2038-10-12
Regeneron Pharmaceuticals, Inc. EYLEA aflibercept Injection 125387 August 16, 2018 ⤷  Start Trial 2038-10-12
Regeneron Pharmaceuticals, Inc. EYLEA HD aflibercept Injection 761355 August 18, 2023 ⤷  Start Trial 2038-10-12
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,464,992

Country Patent Number Estimated Expiration
South Africa 200809827 ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2007149334 ⤷  Start Trial
United States of America 9914763 ⤷  Start Trial
United States of America 9580489 ⤷  Start Trial
United States of America 9340594 ⤷  Start Trial
United States of America 8802107 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration

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