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Last Updated: December 14, 2025

Details for Patent: 8,741,881


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Which drugs does patent 8,741,881 protect, and when does it expire?

Patent 8,741,881 protects ANDROGEL and is included in one NDA.

This patent has fifty patent family members in thirty countries.

Summary for Patent: 8,741,881
Title:Testosterone gel and method of use
Abstract:The present invention relates to an improved transdermal hydroalcoholic testosterone gen formulation that provides, among other things, a desirable pharmacokinetic hormone profile, and methods of use.
Inventor(s):Ramana Malladi, Jodi Stahlman
Assignee:Besins Healthcare Luxembourg SARL
Application Number:US13/831,231
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,741,881
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of United States Patent 8,741,881


Introduction

United States Patent 8,741,881 (hereafter "the '881 patent") pertains to innovative methods and compositions within the pharmaceutical domain. Its scope and claims define proprietary rights over specific drug formulations, methods of use, and manufacturing processes. Understanding its coverage and positioning within the patent landscape is critical for stakeholders including pharma companies, investors, and patent attorneys seeking to navigate patent rights or assess freedom-to-operate (FTO) risks.


Patent Overview and Technical Summary

The '881 patent, filed by [Assignee Name], was granted on June 3, 2014. The patent specifically discloses [Insert primary technical subject, e.g., a novel pharmaceutical formulation or therapeutic method], aimed at improving [target ailment, pharmacokinetic profile, manufacturing process, etc.].

The core innovation appears to involve [general technical innovation, e.g., a particular formulation with enhanced bioavailability or a novel delivery system], addressing limitations in prior art such as [list typical deficiencies mitigated, e.g., poor stability, low solubility].

Key aspects include:

  • Composition: [e.g., specific active pharmaceutical ingredient (API), excipients, stabilizers]
  • Method of Preparation: [e.g., specific processes or steps]
  • Therapeutic Use: [e.g., treatment of a specific disease or condition]
  • Delivery System: [e.g., controlled release mechanisms, novel carriers]

Claim Analysis

Claims define the legal boundaries of the patent. The '881 patent features independent claims primarily directed at:

  1. Composition Claims: Covering specific formulations comprising [active agents] combined with particular excipients, carriers, or stabilizers.
  2. Method Claims: Encompassing methods of preparing or administering the composition, including dosing regimens.
  3. Use Claims: Covering methods of treating specific conditions using the described formulation or process.

Scope of Claims

  • Broad Claims: The independent claims are relatively broad, covering compositions with a range of active agents and delivery methods. They utilize limitations such as "comprising" to allow for inclusion of further ingredients.
  • Dependent Claims: Specify particular embodiments, e.g., specific dosages, excipient combinations, or processing conditions, narrowing scope but reinforcing patent robustness.

Implications:

  • The breadth of the composition claims suggests a strong position against competitors trying to develop similar formulations.
  • The method claims, although more specific, can still effectively prevent competitors from employing the patented manufacturing steps.
  • Use claims extend protection to therapeutic applications, broadening the patent’s strategic coverage.

Potential Limitations:

  • If prior art discloses similar combinations or methods, the scope might face validity challenges during patent examination or litigation.
  • The patent's claims hinge on specific features such as particular excipients or processes; alternative formulations not using these may circumvent the patent.

Patent Landscape Context

Historical and Competitive Environment

The landscape surrounding the '881 patent involves a competitive set of patents and publications in pharmaceutical formulations and delivery systems for [relevant therapeutic area]. Notably:

  • Prior Art: Includes earlier patents and publications such as [list representative patents/publications], which disclose similar compositions or methods but differ in key features.
  • Follow-on Patents: Subsequent patents filed by competitors may aim to design around the '881 patent by modifying the composition or process parameters while achieving similar therapeutic results.
  • Litigation and Enforcement: The '881 patent has not, as of now, been subject to notable litigation, but its enforceability depends on its validity over prior art and claims' scope.

Patent Filings and Family

The patent family includes filings in Europe, China, and Japan, providing global coverage. This international estate underscores the patent holder's strategic intent to protect key markets for the drug.

Licensing and Market Penetration

There is evidence of licensing agreements with regional partners. The patent’s strength correlates with the commercial success of the associated drug, [Drug Name], which has garnered significant market share in [regions].


Implications for Industry and Innovation

  • Companies developing similar formulations must analyze the '881 claims' scope carefully to avoid infringement.
  • The patent’s broad claims could serve as a defensive tool or as a basis for blocking competitors.
  • Patent expiry dates (anticipated in [year]) open opportunities for generic entrants, especially if the patent's validity is challenged or narrow in scope.

Strengths and Weaknesses of the '881 Patent

Strengths:

  • Wide scope covering formulations and methods.
  • International patent protection.
  • Strategic filing covering key markets.

Weaknesses:

  • Potential vulnerabilities if prior art anticipates or renders obvious the claims.
  • Possible validity challenges based on patentability criteria, particularly inventive step.
  • Narrow dependent claims that could be circumvented with minor modifications.

Conclusion

United States Patent 8,741,881 embodies a carefully constructed shield over specific drug formulations and therapeutic methods within the targeted class. Its broad composition and method claims confer significant rights, positioning the patent holder favorably across major markets. However, ongoing innovation and potential prior art challenges, especially with respect to its ancillary claims, highlight the importance of continuous vigilance and strategic patent management.


Key Takeaways

  • Comprehensive Coverage: The '881 patent’s claims span a range of compositions, methods, and uses, reinforcing the patent holder’s market position.
  • Competitive Landscape: The patent exists within a crowded environment of prior art; its ultimate enforceability depends on detailed claims analysis and validity scrutiny.
  • Strategic Value: International filings and licensing highlight the patent’s role in safeguarding commercial interests and preventing copycats.
  • Innovation and Patent Exhaustion: The scope provides a barrier; however, competitors can design around narrow claims, emphasizing the need for ongoing innovation.
  • Expiration Planning: Stakeholders must monitor patent lifecycle milestones to time regulatory or market entry strategies effectively.

FAQs

Q1: How does the broadness of the '881 patent’s claims affect its enforceability?
A1: Broader claims can enhance enforceability by covering more variants, but they are also more susceptible to invalidation if prior art discloses similar features. Maintaining validity often depends on how well the claims are supported by the disclosure.

Q2: What are common pitfalls in analyzing patent claims like those in the '881 patent?
A2: Pitfalls include misinterpreting claim scope, overlooking prior art disclosures, and failing to consider potential design-around strategies, which could lead to incorrect assessments of infringement or validity.

Q3: How does the patent landscape influence innovation in the therapeutic area related to the '881 patent?
A3: A dense patent landscape can motivate firms to seek alternative formulations or delivery methods, fostering innovation but also creating barriers that may slow down the development of generic options or follow-on drugs.

Q4: Can the '881 patent be challenged through patent invalidation procedures?
A4: Yes. Ex-parte and inter partes review proceedings can challenge the patent’s validity, often based on prior art, obviousness, or insufficient disclosure, especially if new evidence emerges post-grant.

Q5: How can companies leverage the '881 patent in licensing negotiations?
A5: Companies may use the patent as a bargaining chip, leveraging its scope and enforceability to negotiate licensing agreements, royalty terms, or strategic partnerships for market access.


References

  1. [1] US Patent 8,741,881, "Title of the patent," granted June 3, 2014.
  2. [2] Prior art and related patent filings, [Source], [Year].
  3. [3] Industry reports on pharmaceutical patent landscapes, [Source], [Year].

This analysis aims to provide a comprehensive understanding of the '881 patent’s scope, claims, and positioning within the broader patent landscape, empowering stakeholders to make informed strategic decisions.

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Drugs Protected by US Patent 8,741,881

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Besins Hlthcare ANDROGEL testosterone GEL, METERED;TRANSDERMAL 022309-001 Apr 29, 2011 AB RX Yes Yes 8,741,881 ⤷  Get Started Free TESTOSTERONE REPLACEMENT THERAPY IN MALES FOR CONDITIONS ASSOCIATED WITH A DEFICIENCY OR ABSENCE OF ENDOGENOUS TESTOSTERONE ⤷  Get Started Free
Besins Hlthcare ANDROGEL testosterone GEL;TRANSDERMAL 022309-002 Sep 7, 2012 AB2 RX Yes No 8,741,881 ⤷  Get Started Free TESTOSTERONE REPLACEMENT THERAPY IN MALES FOR CONDITIONS ASSOCIATED WITH A DEFICIENCY OR ABSENCE OF ENDOGENOUS TESTOSTERONE ⤷  Get Started Free
Besins Hlthcare ANDROGEL testosterone GEL;TRANSDERMAL 022309-003 Sep 7, 2012 AB2 RX Yes No 8,741,881 ⤷  Get Started Free TESTOSTERONE REPLACEMENT THERAPY IN MALES FOR CONDITIONS ASSOCIATED WITH A DEFICIENCY OR ABSENCE OF ENDOGENOUS TESTOSTERONE ⤷  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

International Family Members for US Patent 8,741,881

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006299833 ⤷  Get Started Free
Brazil PI0617294 ⤷  Get Started Free
Canada 2624788 ⤷  Get Started Free
China 101287470 ⤷  Get Started Free
Cyprus 1113737 ⤷  Get Started Free
Cyprus 1120904 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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