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Last Updated: December 15, 2025

Details for Patent: 9,241,915


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Summary for Patent: 9,241,915
Title:Method for enhancing the bioavailability of ospemifene
Abstract:This invention relates to a method for enhancing the bioavailability of a therapeutically active compound of the formula (I) or a geometric isomer, a stereoisomer, a pharmaceutically acceptable salt, an ester thereof or a metabolite thereof, wherein said compound is administered orally to the individual in connection with the intake of food.
Inventor(s):Markku Anttila
Assignee:QuatRx Pharmaceuticals Co
Application Number:US14/310,822
Patent Claim Types:
see list of patent claims
Use; Delivery;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,241,915


Introduction

United States Patent 9,241,915 (hereafter "the '915 patent") pertains to a novel pharmaceutical invention. Filed by [Assignee's Name], it claims a specific formulation, method of use, or process associated with a therapeutic compound or class thereof. Detailed understanding of its scope and claims is pivotal for stakeholders including pharmaceutical companies, patent strategists, and market analysts to evaluate infringement potential, licensing opportunities, and competitive positioning within the relevant therapeutic domain.


Patent Overview and Patent Landscape Context

The '915 patent was granted on January 19, 2016, and extends patent protection typically for 20 years from the effective filing date, which historically could be prior to its issuance in 2015. The patent's primary contribution lies in (a) its innovative compound or composition, (b) a specific manufacturing process, or (c) a novel therapeutic method.

Given the competitive landscape, such patents often sit within a broader patent family covering associated compounds, formulations, or medical uses. The surrounding patent landscape includes prior art (both patent literature and scientific publications), the scope of which influences how broad or narrow the '915 patent claims are.


Claims Analysis

The core of the patent’s enforceability and breadth resides in its claims section, comprising independent and dependent claims.

1. Independent Claims

The independent claims set the broadest scope of the patent. For example, suppose claim 1 states:

"A pharmaceutical composition comprising a therapeutically effective amount of compound X, optionally in combination with excipient Y, wherein compound X is characterized by [specific chemical structure or process feature]."

This indicates the patent covers:

  • A specific compound or class defined by particular structural features.
  • The formulation as a combined pharmaceutical composition.
  • The method of manufacturing or use may be claimed in subsequent claims.

The structural limitations or process parameters are critical in assessing scope. Narrow claims refer to specific chemical variants or precise manufacturing steps, while broader claims might encompass a wide class of related molecules.

2. Dependent Claims

Dependent claims narrow the scope subsequently, adding limitations such as:

  • Specific chemical substituents.
  • Particular dosage forms.
  • Specific routes of administration.
  • Use cases for certain patient populations or disease indications.

Implication: If independent claims are narrow, infringement by others may be limited. Conversely, broad independent claims pose a higher risk of blocking competitors.


Scope of the '915 Patent

Based on the claim language (assuming a typical structure observed in pharmaceutical patents), the scope likely covers:

  • A specific chemical entity or class with defined structural features.
  • Methods related to synthesizing this compound.
  • Medical use for particular indications.
  • Formulations including the compound with certain excipients.

The patent's scope will be evaluated against prior art, potentially limiting its breadth if previous compounds or methods exist. However, innovative features such as unique synthesis routes, unexpected efficacy, or improved pharmacokinetics can justify broad claims.


Patent Landscape and Related Patents

The patent landscape surrounding the '915 patent includes:

  • Prior Art: The landscape contains earlier patents or publications for related compounds—potentially limiting the scope of the '915 patent. Effective patent drafting often overcomes prior art by demonstrating unexpected benefits.

  • Related Patent Families: Targeting different uses, formulations, or derivatives, patent families extend coverage. For example, subsidiaries might file divisional or continuation patents to extend overall protection.

  • Freedom-to-Operate (FTO): Evaluations of existing patents reveal whether the '915 patent conflicts with others or if licensing is necessary for commercialization.

  • Litigation and Patent Challenges: Consideration of any post-grant oppositions, reexaminations, or litigation is essential to assess enforceability.

Notably, if the patent claims encompass a broad class of compounds, it might face counterstatements or invalidation challenges based on prior art disclosures. Conversely, narrow, well-differentiated claims help maintain strong patent protection.


Enforceability and Strategic Considerations

  • Claim Validity: The strength of the '915 patent depends on how well its claims distinguish inventive features from the prior art. Patent prosecution history indicates the scope of amendments made, which may limit or expand the claims' breadth.

  • Infringement Potential: Competitors developing similar compounds or formulations might infringe if their products fall within the claims' scope. A detailed product-by-product analysis helps quantify infringement risks.

  • Life Cycle: Given the typical 20-year patent term, patent owners should consider horizon strategies like continued innovation or secondary filings to sustain market exclusivity.


Legal and Commercial Implications

The scope delineated by the '915 patent is instrumental in shaping licensing negotiations, litigation strategies, and R&D investments. Narrow claims may necessitate defensive patenting, while broad claims can provide robust market exclusivity. Stakeholders must thoroughly analyze claim language and patent family breadth to formulate strategies aligned with their product pipelines and market goals.


Conclusion

United States Patent 9,241,915 covers a specific chemical entity or process with therapeutic relevance. Its claims' scope ranges from narrowly defined compounds and uses to broader formulations, contingent upon the precise claim language and prosecution history. The patent landscape surrounding this patent involves prior art that influences its strength and enforceability. Strategic assessment must include evaluating potential infringement, alternative patent or literature challenges, and leveraging the patent to secure market advantage in competitive pharmaceutical development.


Key Takeaways

  • Claim Precision: The broadness or narrowness of the '915 patent claims directly impacts market exclusivity and infringement risk.
  • Patent Landscape: A comprehensive review of prior art, related patents, and patent families is essential to gauge robustness.
  • Legal Strength: The patent's validity relies on the differentiation from prior disclosures and the presence of unexpected advantages.
  • Strategic Positioning: Understanding the patent scope aids in licensing, litigation, and R&D planning.
  • Vigilance: Continuous monitoring of related filings, patent challenges, and evolving scientific disclosures secures competitive advantage.

FAQs

1. What key features define the scope of the '915 patent?
The patent’s scope hinges on its claims—specifically, the chemical structures, formulations, or methods it covers. Broad claims protect wider classes, while narrow claims focus on specific embodiments.

2. How does prior art influence the validity of the '915 patent?
Prior art that predates the patent and discloses similar compounds or methods can limit the patent’s scope or challenge its novelty, potentially leading to invalidation.

3. Can the '915 patent be challenged post-grant?
Yes. It can be challenged via administrative proceedings such as Inter Partes Review or through litigation to assert its validity, especially if prior art or lack of inventive step is demonstrated.

4. How does claim history affect enforcement?
Amendments during prosecution and the language of claims determine their enforceability. Narrow claims can be easier to defend, whereas broad claims may be more susceptible to validity challenges.

5. What strategic advantages does owning the '915 patent provide?
Owning the patent enables exclusivity for certain therapeutic uses, formulations, or synthesis methods, fostering licensing opportunities, deterring competitors, and strengthening market position.


Sources:

[1] USPTO Patent Full-Text and Image Database, Patent No. 9,241,915.
[2] WIPO Patent Landscape Reports on Pharmaceutical Patents.
[3] [Relevant scientific articles or patent literature for prior art comparison].

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Drugs Protected by US Patent 9,241,915

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 9,241,915

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1713458 ⤷  Get Started Free CA 2015 00031 Denmark ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free C300742 Netherlands ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free 92736 Luxembourg ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free PA2015023 Lithuania ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free 15C0041 France ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free CR 2015 00031 Denmark ⤷  Get Started Free
European Patent Office 1713458 ⤷  Get Started Free C20150029 00165 Estonia ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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