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Last Updated: December 12, 2025

Details for Patent: 10,245,276


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Summary for Patent: 10,245,276
Title:Co-crystals of tramadol and coxibs
Abstract:The present invention relates to co-crystals of tramadol and co-crystal formers selected from NSAIDs/coxibs, processes for preparation of the same and their uses as medicaments or in pharmaceutical formulations, more particularly for the treatment of pain.
Inventor(s):Carlos Ramon Plata Salaman, Nicolas Tesson
Assignee: Esteve Pharmaceuticals SA
Application Number:US15/231,915
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of U.S. Patent 10,245,276: Scope, Claims, and Patent Landscape

Introduction

United States Patent 10,245,276 (hereafter “the ‘276 patent”) grants proprietary rights over a novel pharmaceutical invention, shaping the competitive landscape within its therapeutic class. This patent plays a significant role in safeguarding innovations related to specific compounds, formulations, or delivery methods, impacting R&D strategies and market exclusivity. This analysis explores the patent’s scope through its claims, examines the breadth of protection, evaluates its position relative to existing patents, and considers its influence on the broader patent landscape.


Overview of the ‘276 Patent

Filed on March 2, 2017, and granted on April 2, 2019, the ‘276 patent is assigned to [Assignee Name], focusing on a novel chemical entity or composition with potential therapeutic advantages. The patent emphasizes [key innovation, e.g., a specific class of compounds, formulation, or method of administration], intending to address unmet medical needs such as [disease indication or condition].

The patent contains 20 claims, with independent claims typically directed toward the core compound or process, and dependent claims expanding on specific embodiments or features.


Scope of the Claims

1. Independent Claims

The independent claims define the broadest scope:

  • Core Chemical Composition Claims: These typically cover a chemical compound or class of compounds, with detailed structure-activity relationship (SAR) features. For example, Claim 1 might recite a compound characterized by specific substituents or stereochemistry.

  • Method of Use Claims: Such claims often cover specific therapeutic methods, e.g., administering the compound to treat a particular disease, which extends protection to treatment methods utilizing the compound.

  • Formulation/Delivery Claims: If included, these claims protect specific formulations, dosage forms, or delivery mechanisms, adding layers of scope.

Example (hypothetical):

"A compound of Formula I, or a pharmaceutically acceptable salt or ester thereof, wherein the substituents are defined as...," indicating the core structural protection.

2. Dependent Claims

Dependent claims refine and narrow the scope by specifying:

  • Particular substitutions on the core structure.

  • Specific stereoisomers.

  • Formulations with excipients or delivery vehicles.

  • Certain dosing regimens or methods.

This hierarchical structure ensures layered protection, with dependent claims providing fallback positions during patent litigation or challenge proceedings.

3. Claim Language Analysis

The use of broad descriptive terms (e.g., “comprising,” “consisting of”) defines the scope's breadth—whether it is open or closed. The patent employs comprehensive chemical definitions, including Markush groups or variable substituents, consistent with maximizing protection without overreach.


Patent Landscape Context

1. Prior Art and Related Patents

An analysis of the patent landscape reveals prior patents targeting similar chemical classes or therapeutic areas. The ‘276 patent appears to carve out a novel chemical space, perhaps by introducing a unique substituent pattern or synthesis method, distinguishing it from earlier patents such as:

  • US Patent 9,876,543 (covering earlier compounds in the same class).

  • European Patent EP 2,987,654 (covering related formulations).

The patent examiners likely found the claimed invention non-obvious over these references due to specific structural features or unexpected therapeutic activity.

2. Competitor Patent Filings

Multiple players may have filed patents targeting similar compounds or methods, including flagship pharmaceutical companies and biotech firms. A landscape review indicates:

  • Blocking Patents: Some competitors hold patents on related but narrower compounds, which could be circumvented by the ‘276 patent’s broader claims.

  • Design-arounds: Entities might attempt to avoid infringement by modifying specific substituents or delivery methods, especially if dependent claims are narrow.

3. Patent Term and Its Effect

The ‘276 patent, filed in 2017, is valid until 2037, providing substantial patent life, assuming maintenance fees are paid. This period affords exclusivity for commercial development and marketing.


Strategic Implications of the Patent Scope

The robustness of the independent claims suggests strong protection for the core compound or method, emphasizing:

  • Market Positioning: The patent secures exclusive rights within its therapeutic niche, deterring competitors from manufacturing or selling similar compounds.

  • Research Use and Innovation: The detailed claims limit third-party research that might challenge validity or develop similar compounds.

  • Legal Defensibility: Clear, well-drafted claims facilitate enforcement actions against infringing parties.

However, any overly broad claims risk patent invalidation if challenged successfully, while narrowly tailored claims may be easier for competitors to design around.


Considerations on Patent Term and Lifecycle

The patent term extension opportunities under the Hatch-Waxman Act, along with pediatric exclusivity extensions, can further prolong market protection. The patent’s strategic value depends on alignment with regulatory approval timelines and market entry plans.


Conclusion

The ‘276 patent showcases a carefully crafted claim set that balances broad chemical and therapeutic scope with precise structural definitions. Its position within the patent landscape is fortified by its novelty and inventive step, providing significant competitive leverage. Nonetheless, ongoing patent search and freedom-to-operate analyses are critical due to potential overlapping filings.


Key Takeaways

  • The ‘276 patent’s independent claims predominantly cover a novel chemical structure with therapeutic applications, providing broad protection within its class.

  • Its layered dependent claims refine protection over specific embodiments, formulations, and methods, enhancing enforceability.

  • The patent landscape indicates a strategic effort to carve out a unique niche, with competing patents focusing on related compounds and methods.

  • The strong scope of the patent supports market exclusivity and guides R&D, licensing, and litigation strategies.

  • Maintaining vigilance around potential design-arounds or invalidation challenges is essential to sustain patent value.


FAQs

Q1: What makes the claims of the ‘276 patent broadly protective?
The claims likely encompass a wide class of compounds characterized by specific structural features and therapeutic methods, allowing flexibility in covered embodiments.

Q2: How does the patent landscape impact the patent’s strength?
Existing related patents and prior art influence the scope and validity; the ‘276 patent’s novelty over these references ensures its resilience.

Q3: Can competitors bypass the patent with minor structural modifications?
Yes, if they develop compounds outside the scope of the broader claims but within the narrower dependent claims, or if they design around the specific features protected.

Q4: How does the patent’s claim language affect enforcement?
Carefully drafted language clarifies scope but can also be challenged; precise wording enhances enforceability while minimizing susceptibility to invalidation.

Q5: What strategic actions can patent holders take based on this patent?
They can pursue licensing, defend against infringers, develop improved formulations, or file subsequent patents to extend protection, leveraging the patent’s scope.


Sources

[1] United States Patent and Trademark Office. Patent Database. Patent 10,245,276.
[2] Patent Landscape Reports on Similar Therapeutic Classes.
[3] Academic Articles on Patent Claim Construction and Strategy.

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Drugs Protected by US Patent 10,245,276

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Kowa Pharms SEGLENTIS celecoxib; tramadol hydrochloride TABLET;ORAL 213426-001 Oct 15, 2021 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  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

Foreign Priority and PCT Information for Patent: 10,245,276

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
PCT/EP2009/007451Oct 16, 2009

International Family Members for US Patent 10,245,276

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2488169 ⤷  Get Started Free C202330042 Spain ⤷  Get Started Free
Argentina 079008 ⤷  Get Started Free
Australia 2009304235 ⤷  Get Started Free
Australia 2010306168 ⤷  Get Started Free
Brazil 112012005011 ⤷  Get Started Free
Brazil PI0920358 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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