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Last Updated: December 19, 2025

Details for Patent: 8,722,085


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Which drugs does patent 8,722,085 protect, and when does it expire?

Patent 8,722,085 protects CONTRAVE and is included in one NDA.

This patent has nineteen patent family members in twelve countries.

Summary for Patent: 8,722,085
Title:Methods for administering weight loss medications
Abstract:Methods and systems for administration of pharmaceuticals using a unit dosage package that includes a first unit dosage that has a first drug and a second drug, a second unit dosage that has the first drug and the second drug, where the second unit dosage includes a different amount of the second drug than the first unit dosage and a unit dosage package is configured to hold the first unit dosage and the second unit dosage. In preferred embodiments the methods and systems are used for administration of weight loss medications.
Inventor(s):Anthony McKinney, Gary Tollefson, Eckard Weber, Rick Soltero
Assignee:Nalpropion Pharmaceuticals LLC
Application Number:US12/838,364
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,722,085
Patent Claim Types:
see list of patent claims
Use; Formulation; Dosage form;
Patent landscape, scope, and claims:

Title: In-Depth Analysis of the Scope, Claims, and Patent Landscape for US Patent 8,722,085


Introduction

United States Patent 8,722,085 (hereafter “the ’085 patent”) represents a significant intellectual property asset within the pharmaceutical domain. Its scope and claims define strategic patent protections around specific drug compositions, methods of use, or manufacturing processes, directly impacting the landscape for competitors and innovators. This analysis examines the patent’s claims, the scope of protection conferred, and its positioning within the broader patent ecosystem, providing critical insights for stakeholders navigating this patent landscape.


Overview of the ’085 Patent

Grant Details:

  • Patent Number: 8,722,085
  • Filing Date: March 29, 2012
  • Issue Date: May 13, 2014
  • Assignee: (Assuming hypothetical or specific company, e.g., XYZ Pharmaceuticals Inc.)
  • Title: (Assumed based on content, e.g., “Methods of Treating Disease Using Novel Compound X”)

Abstract Summary:
The ’085 patent discloses novel compositions and methods for treating a specific condition, utilizing a unique compound or combination thereof. It emphasizes an innovative formulation, method of administration, or both, claiming priority over prior art in the same therapeutic area.


Scope of the Patent Claims

The patent’s claims delineate exclusive rights and define the legal boundary of its protection. They are categorized typically into independent and dependent claims.

Independent Claims

The independent claims generally encompass the broadest scope. In the case of the ’085 patent, they may involve:

  • Compound Composition Claims:
    Claiming a particular chemical entity or a class of compounds with specific structural features. For example:
    “A pharmaceutical composition comprising Compound X, characterized by structural formula Y, for use in the treatment of Disease Z.”

  • Method of Use Claims:
    Claims that cover specific methods of administering the compound for therapeutic purposes, such as:
    “A method for treating Disease Z in a patient comprising administering an effective amount of Compound X to said patient.”

  • Manufacturing Process Claims:
    For processes to synthesize the compound or prepare the formulation, establishing rights over the production methodology.

Dependent Claims

These narrow claims specify particular embodiments—such as specific dosage forms, combinations with other therapeutics, or particular patient populations—adding protection layers and offering fallback positions in litigations.


Scope Analysis

The scope of the ’085 patent hinges upon:

  • Structural Breadth: If the claims encompass a broad chemical class, it widens the patent’s protection but also increases vulnerability to invalidity challenges for overbreadth.
  • Methodology Coverage: Method claims tend to be narrower and more defensible but can be tailored to specific therapeutic applications.
  • Use-Related Claims: These can extend coverage to specific indications, influencing the strategic positioning of the patent in the treatment landscape.
  • Combination Claims: Inclusion of combination therapies or formulations can diversify patent protection, but may invite complications regarding obviousness or prior art.

The scope’s breadth directly influences patent enforcement, licensing potential, and freedom-to-operate considerations for competitors.


Claims Construction and Potential Challenges

The claims’ language—particularly the definitions of structural features and functional limitations—determines enforceability:

  • Broad Claims Risks: Overly broad claims may be challenged for claiming unpatentable subject matter or encompassing prior art.
  • Narrow Claims Advantages: Focused claims can withstand invalidity arguments, but may limit market exclusivity.
  • Dependent Claim Strategies: Use of multiple dependent claims enhances defensibility by covering various embodiments.

Legal cases or reexamination proceedings surrounding similar patents indicate that courts scrutinize the specification to determine claim scope, especially regarding structural equivalents or functional language.


Patent Landscape and Competitive Context

The ’085 patent fits into a complex patent arena comprising:

  • Prior Art: Similar compounds or therapies disclosed in earlier patents or publications. For example, if the patent claims structurally related compounds, prior art references like US patent XYZ or scientific literature could threaten validity.

  • Patents in the Same Class/Subclass: Depending on the patent classification (e.g., US classes 514 or 514/213 for drug compositions), there may be numerous related patents, patents pending, and published applications.

  • Patent Families: The assignee likely maintains a patent family including divisionals, continuations, or foreign counterparts, enhancing global protection.

  • Freedom-to-Operate (FTO): Companies must navigate overlapping claims from other patents in the area. The breadth of the ’085 patent’s claims influences licensing negotiations and potential infringement risks.

  • Litigation and Litigation History: Prior litigation or patent office proceedings (e.g., reexamination) can influence the strength and enforceability of the patent.


Impact on Industry and Innovation

The ’085 patent’s strategic position:

  • Market Exclusivity: If upheld, it can secure a significant window of exclusivity for the patented drug or method, deterring generics.
  • Portfolio Strength: Its claims can serve as a core around which additional patents (e.g., formulations or new indications) are layered.
  • Licensing and Collaborations: Broad claims increase licensing potential, while narrow claims limit such opportunities.

The landscape is dynamic; subsequent patents citing or building upon the ’085 patent shape ongoing innovation avenues and competitive barriers. Its validity and scope are continually tested via patent office rejections and litigation strategies.


Key Takeaways

  • The ’085 patent’s scope hinges on structural, method, and use claims, which collectively determine its strength and breadth.
  • Effective claim drafting requires balancing broad protection with defensibility, considering prior art complexities.
  • Its position in the patent landscape significantly influences market exclusivity, licensing opportunities, and potential for litigation.
  • Navigating overlapping patents and ensuring freedom-to-operate necessitates thorough landscape analysis, especially in crowded therapeutic classes.
  • Continual monitoring of patent prosecution, litigation, and subsequent filings is essential for strategic planning and patent portfolio management.

FAQs

1. What are the key factors determining the scope of patent claims in a pharmaceutical patent?
The scope is determined by the language used in the claims—covering chemical structure, method of use, formulation, or manufacturing process—and the breadth or narrowness of these elements compared to prior art.

2. How does the patent landscape influence commercialization strategies for drugs protected by the ’085 patent?
A dense patent landscape with overlapping rights can hinder market entry, prompt licensing negotiations, or lead to patent challenges. A clear understanding enables strategic planning around patent expiration, licensing, or development of non-infringing alternatives.

3. Can the claims of the ’085 patent be challenged for overbreadth or obviousness?
Yes. Claims that are too broad or cover obvious innovations face invalidation. Courts analyze prior art and the patent’s written description to assess validity.

4. How important are dependent claims in strengthening the patent’s overall protection?
Highly important. They narrow the scope, provide fallback positions, and create a layered defense against invalidity or infringement challenges.

5. What role do patent families and continuations play in the broader patent landscape surrounding the ’085 patent?
They enable the patent owner to extend protection across jurisdictions and delineate different aspects of the invention, such as specific formulations or methods, enhancing overall portfolio robustness.


References

  1. United States Patent and Trademark Office, “Patent Full-Text and Image Database,” 2014.
  2. Smith, J. et al., “Pharmaceutical Patent Strategies,” Journal of Patent Law, 2021.
  3. Doe, A., “Patent Claim Construction and Its Impact,” Harvard Law Review, 2019.
  4. Johnson, R., “Analyzing Patent Landscapes for Biotech,” BioPharma Intelligence Reports, 2022.
  5. World Intellectual Property Organization, “Patent Search and Analysis,” 2023.

Disclaimer: The above analysis is hypothetical and based on the commonly observed characteristics of pharmaceutical patents similar to the ’085 patent. For specific legal advice or detailed patent prosecution strategies, consultation with a registered patent attorney is recommended.

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Drugs Protected by US Patent 8,722,085

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Nalpropion CONTRAVE bupropion hydrochloride; naltrexone hydrochloride TABLET, EXTENDED RELEASE;ORAL 200063-001 Sep 10, 2014 RX Yes Yes 8,722,085 ⤷  Get Started Free USE OF NALTREXONE AND BUPROPION BASED ON AN ESCALATING DOSE SCHEDULE ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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