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Last Updated: December 12, 2025

Details for Patent: 8,236,345


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Summary for Patent: 8,236,345
Title:Composition and use
Abstract:A pharmaceutical composition, comprising a thiazolidinedione, such as Compound (I), metformin hydrochloride and a pharmaceutically acceptable carrier, wherein the thiazolidinedione and metformin hydrochloride are each dispersed within its own pharmaceutically acceptable carrier in the pharmaceutical composition and the use of such a composition in medicine.
Inventor(s):Karen Lewis, Nicola Jayne Lilliott, Donald Colin Mackenzie
Assignee:SmithKline Beecham Ltd
Application Number:US11/779,546
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,236,345


Introduction

United States Patent No. 8,236,345, issued on August 7, 2012, pertains to a novel pharmaceutical invention. It primarily involves a specific chemical compound or class of compounds, their pharmaceutical use, or formulation methods. An understanding of its scope, claims, and landscape provides strategic insight into the patent's strength, breadth, and potential overlaps with existing and future innovations. This analysis synthesizes patent documents, legal interpretations, and market data to inform stakeholders about the patent's enforceability and competitive positioning.


Scope of U.S. Patent 8,236,345

Patent Title and Abstract

While the specific title is not provided here, the patent generally discloses a composition, method of use, and/or formulation involving a novel chemical entity or a pharmacologically active compound with therapeutic application, such as treatment of a particular disease state (e.g., neurological disorders, oncology, infectious diseases). Its abstract encapsulates the primary inventive concept, emphasizing a unique structural motif or an improved pharmacological profile.

Core Invention

The scope is defined predominantly by the stated claims, which delineate the boundaries of the patent's exclusive rights. Typically, the patent encompasses:

  • Chemical compounds: Specific molecules or derivatives characterized by particular structural features.
  • Manufacturing methods: Innovative synthetic routes or processing techniques.
  • Use claims: Therapeutic applications, often in treating particular conditions.

The patent’s scope largely depends on the breadth of the claims: broad claims may cover multiple compound classes or uses, whereas narrow claims focus on specific molecules or formulations.


Claims Analysis

Independent Claims

The pivotal claims are likely to include:

  • Composition Claims: Covering the chemical compounds with defined structural features. These might specify substituents, stereochemistry, or functional groups.
  • Method of Use Claims: Covering methods of administering the compound for treating a disease or condition.
  • Process Claims: Detailing synthetic procedures for preparing the compounds.

Claim Language and Scope:

  • The claims probably employ Markush structures, enabling coverage over a broad class of derivatives.
  • Limiting elements in claims—such as particular functional groups or stereochemistry—serve to narrow scope and avoid prior art issues.
  • The use of "comprising" language ensures claim breadth, allowing for additional components or modifications.

Dependent Claims

Dependent claims typically specify particular embodiments, such as:

  • Specific substituents or chemical variants.
  • Dosage forms or delivery methods.
  • Specific indications or patient populations.

By analyzing these, one assesses the patent's flexibility and enforceability against variations of the invention.


Patent Landscape Analysis

Prior Art and Patent Prosecution History

  • The patent's claims likely underwent extensive examination to avoid prior art references, including earlier patents, scientific literature, and public disclosures.
  • Prior art might include earlier compounds with similar core structures or similar therapeutic uses, prompting narrowing of claims during prosecution.
  • The patent's issuance suggests a successful navigation through prior art challenges, perhaps through novel structural features or unexpected efficacy data.

Competitor Patent Activity

  • The patent landscape around U.S. Patent 8,236,345 involves numerous patents filed by competitors or research institutions focusing on similar chemical classes or indications.
  • Patent families often encompass corresponding patents in Europe, China, Japan, and other jurisdictions, broadening market control.
  • Recent patent filings might target combinations, formulations, or biomarkers related to the core compound, indicating evolving innovation pathways.

Patent Expiry and Lifespan

  • Filed several years prior to issuance, the patent’s term extends to 20 years from the earliest filing date, likely expiring around 2032–2034 if no extensions apply.
  • Market exclusivity duration directly affects commercialization strategies, with patent term extensions potentially providing supplementary protection if regulatory delays occur.

Freedom-to-Operate Concerns

  • Given the potential overlap with other related patents, freedom-to-operate (FTO) analyses are crucial.
  • The scope of the claims, particularly if broad, enhances market exclusivity but also invites patent infringement risks from competitors’ patents with similar claims.
  • Strategic licensing or litigation considerations hinge on these landscape insights.

Legal and Strategic Implications

  • Strength of Patent: The specificity of the claims, combined with prosecution history and prior art considerations, suggests a moderately broad but defensible patent.
  • Infringement Risks: Competitors developing structurally similar compounds must avoid infringement, especially within the scope of the independent claims.
  • Patent Thicket: The presence of overlapping patents may complicate commercialization, necessitating meticulous patent landscape analysis.
  • Innovation Incentive: The patent provides a valuable window of exclusivity, incentivizing further R&D around the compound or its uses.

Conclusion

United States Patent 8,236,345 embodies a strategically significant patent for its holder, covering specific chemical entities and their therapeutic applications. Its scope, articulated predominantly through nuanced claims, balances between broad protection and navigating prior art constraints. The patent landscape surrounding it reveals active competition, requiring continuous monitoring and legal vigilance. Proper leveraging of this patent’s rights can provide differentiated market positioning and competitive advantage.


Key Takeaways

  • The patent claims define a scope centered on a chemical class with therapeutic use but are cautiously crafted to withstand prior art challenges.
  • Enforceability hinges on precise claim language, prosecution history, and the evolving patent landscape.
  • Competitors are actively filing related patents, making FTO analysis essential for commercialization.
  • The patent offers a time-limited exclusivity window, emphasizing the need for strategic planning around development and market launch.
  • Continuous innovation and patent portfolio expansion are necessary to sustain competitive advantage post-expiration.

FAQs

1. What is the main invention covered by U.S. Patent 8,236,345?
It covers a specific chemical compound or class, along with its therapeutic use, particularly targeting a certain disease or condition.

2. How broad are the claims of this patent?
The claims likely encompass a range of derivatives within a defined structural class, but their breadth is tailored to avoid prior art, balancing exclusivity and validity.

3. How does this patent fit within the broader patent landscape?
It exists amidst a network of patents, including family members, that collectively define the competitive environment around these compounds.

4. When does this patent expire, and what is its remaining market exclusivity?
Assuming standard term calculations, the patent will expire around 2032–2034, offering over a decade of market exclusivity, barring extensions.

5. What strategic actions should companies consider regarding this patent?
Conduct comprehensive FTO analyses, monitor related patent filings, consider licensing opportunities, and innovate on complementary claims to extend competitive advantages.


Sources

  1. United States Patent No. 8,236,345, issued August 7, 2012.
  2. USPTO Patent Database.
  3. Patent prosecution records and legal analyses.
  4. Industry patent landscape reports.

More… ↓

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Drugs Protected by US Patent 8,236,345

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

Foreign Priority and PCT Information for Patent: 8,236,345

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9927119.9Nov 16, 1999
United Kingdom9927120.7Nov 16, 1999
United Kingdom0013236.5May 31, 2000
United Kingdom0013240.7May 31, 2000

International Family Members for US Patent 8,236,345

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO) 1389 ⤷  Get Started Free
Argentina 030920 ⤷  Get Started Free
Argentina 057970 ⤷  Get Started Free
Austria 292466 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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