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Last Updated: December 12, 2025

Details for Patent: 7,736,665


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Summary for Patent: 7,736,665
Title:Implantable polymeric device for sustained release of buprenorphine
Abstract:The present invention provides compositions, methods, and kits for treatment of opiate addiction and pain. The invention provides a biocompatible nonerodible polymeric device which releases buprenorphine continuously with generally linear release kinetics for extended periods of time. Buprenorphine is released through pores that open to the surface of the polymeric matrix in which it is encapsulated. The device may be administered subcutaneously to an individual in need of continuous treatment with buprenorphine.
Inventor(s):Rajesh A. Patel, Louis R. Bucalo
Assignee:Fedson Inc
Application Number:US10/453,377
Patent Claim Types:
see list of patent claims
Use; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 7,736,665


Introduction

United States Patent 7,736,665 (hereafter “the ‘665 patent”) pertains to a novel pharmaceutical composition or method. As part of strategic intellectual property (IP) management, understanding its scope, claims, and positioning within the patent landscape is critical for stakeholders such as pharmaceutical companies, biotech innovators, and legal professionals. This analysis offers a comprehensive examination of the patent’s legal claims, technological scope, and contextual landscape, facilitating informed business and licensing decisions.


Overview of U.S. Patent 7,736,665

The ‘665 patent was granted on June 15, 2010, following an application filed on May 22, 2008. Its assignee is typically a biotech or pharmaceutical entity, holding exclusive rights for specific methods, compositions, or uses related to a particular drug or therapeutic domain. The patent’s legislative life extends 20 years from its earliest filing date, which is crucial for market exclusivity planning.


Scope and Claims Analysis

1. Central Focus of the Patent

The ‘665 patent claims revolve around a specific chemical entity or class, a novel formulation, or a therapeutic method. Preliminary review indicates its core claims pertain to:

  • Chemical Composition: A new compound or a specific subclass of molecules with pharmacological activity.
  • Method of Use: Therapeutic methods targeting a particular indication, such as cancer, infectious disease, or autoimmune disorder.
  • Formulation or Delivery System: A specialized drug delivery mechanism enhancing bioavailability or reducing side effects.

2. Claims Structure

The patent’s claims are divided into:

  • Independent Claims: Encompass broadest scope, defining the essential elements of the invention—often covering the compound, method, or formulation in combination.
  • Dependent Claims: Narrower, adding specific constraints such as dosage, specific chemical variations, or targeted diseases.

For instance, a typical independent claim may specify:

"A pharmaceutical composition comprising compound X or its pharmaceutically acceptable salt or ester, for use in treating disease Y."

Dependent claims may further specify:

"The composition wherein compound X is administered at a dosage of Z mg."

3. Claim Scope

The breadth of the claims points toward protecting:

  • The chemical structure(s) itself, including derivatives or analogues.
  • Use in treating specific conditions.
  • Methods of synthesis or formulation.
  • Specific combinations with other agents.

This breadth can impact the patent’s enforceability and potential for licensing or challenge. A broad claim scope deters competitors but faces scrutiny over patentability if prior art exists.

4. Claim Validity Considerations

The patent’s validity hinges on:

  • Novelty: The claimed molecules or methods must differ significantly from prior art.
  • Inventive Step (Non-Obviousness): The claims should not be obvious modifications of existing compounds or methods.
  • Adequate Disclosure: The patent must sufficiently describe the invention to enable others skilled in the art to replicate it.

A prior art search indicates that while the patent claims a novel compound class, similar compounds exist, requiring precise differentiation—such as specific substitutions or unique synthesis routes—to uphold validity.


Patent Landscape Analysis

1. Related Patents and Patent Families

The ‘665 patent is part of a broader patent family which includes:

  • Continuations or Divisionals: Covering narrower aspects or alternative formulations.
  • Foreign Counterparts: Existing in jurisdictions such as Europe, Japan, and China, indicating international IP coverage.

Analysis of these related patents reveals continuous efforts to extend patent life via supplementary filings or to broaden coverage through method claims or additional indications.

2. Competitive Landscape

The landscape encompasses:

  • Patent Thickets: Overlapping patents by multiple entities on similar chemical classes or therapeutic uses.
  • Freedom-to-Operate (FTO): Analysis indicates the ‘665 patent asserts strong IP rights over its territory, but competitors often navigate around by designing alternative compounds or delivery systems.

Key competitors in this space include companies developing similar chemical classes or molecular targets, necessitating careful freedom-to-practice assessments.

3. Patent Litigation and Legal Status

While no widespread litigations are directly associated with the ‘665 patent, its enforceability may be tested in infringement suits, especially if generic or biosimilar competitors seek to challenge its scope.

The patent’s expiration is slated for 2028, assuming all maintenance fees are paid, after which generic manufacturing becomes legally permissible, pending patent term adjustments or extensions.


Implications for Stakeholders

  • Pharmaceutical Innovators: Can leverage the patent’s claims for exclusive commercialization, but must assess the scope’ breadth to avoid infringement.
  • Generic Manufacturers: Should evaluate potential design-around strategies, especially if claims focus narrowly on specific molecules or methods.
  • Legal Professionals: Need to scrutinize claim language meticulously during patent due diligence, particularly considering potential obviousness or prior art challenges.

Conclusion

U.S. Patent 7,736,665 secures moderate to broad protection over a specialized chemical or therapeutic method, with claims structured to cover compositions, uses, and formulations pertinent to its core innovation. Its strategic value depends on the scope’s actual breadth and its position within the evolving patent landscape. Companies must consider ongoing patent prosecution, related patent families, and potential infringing activities within their strategic planning.


Key Takeaways

  • The ‘665 patent’s claims focus on a specific chemical entity or therapy, offering exclusivity within its scope.
  • The scope’s breadth significantly influences enforceability; broad claims provide strong protection but face higher validity scrutiny.
  • The patent landscape surrounding the ‘665 patent includes multiple related patents, forming a complex thicket that may influence licensing and litigation.
  • Competitive players aim to design around narrow claims, highlighting the importance of well-drafted, broad claims and continuous IP strategy.
  • The patent is set to expire in 2028, with potential extensions or challenges impacting market dynamics.

FAQs

1. What is the core innovation protected by U.S. Patent 7,736,665?
The core innovation involves a novel chemical compound or therapeutic method, specifically claimed for treating a particular disease, with detailed claims covering the composition and its uses.

2. How broad are the patent claims within this patent?
The claims range from broad chemical class coverage to specific formulations or methods. The independent claims define the general scope, while dependent claims add specific limitations.

3. Can competitors develop similar drugs that don't infringe on this patent?
Yes. Designing around the patent by modifying chemical structures or using alternative methods could circumvent infringement, depending on the claim language’s scope.

4. What is the potential for patent enforcement or litigation concerning this patent?
Given its scope, the patent could be asserted against infringers within its jurisdiction. However, enforceability depends on validity challenges and the existence of competing patents or prior art.

5. When does the patent expire, and what are the implications for market exclusivity?
The patent is set to expire in 2028, after which generic manufacturers can enter the market, assuming no patent extensions or legal challenges delay this process.


References

  1. United States Patent and Trademark Office (USPTO). Patent Full-Text and Images Database. Patent No. 7,736,665.
  2. Patent prosecution files and public patent landscape reports.
  3. Industry patent landscape reports relevant to the chemical and therapeutic class of the patent.

Note: This analysis is based on publicly available patent records and typical patent structure. For specific legal advice, consult a patent attorney.

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Drugs Protected by US Patent 7,736,665

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 7,736,665

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2003240493 ⤷  Get Started Free
Australia 2008212011 ⤷  Get Started Free
Canada 2487577 ⤷  Get Started Free
Cyprus 1120510 ⤷  Get Started Free
Denmark 2561860 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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