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Last Updated: March 26, 2026

Details for Patent: 10,166,181


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Summary for Patent: 10,166,181
Title:Slow release pharmaceutical composition made of microgranules
Abstract:Pharmaceutical composition made of microparticles for the slow release of an active substance at least during a period covering the 6th month after injection of said composition, said composition comprising a group of microparticles made of a copolymer of the PLGA type which incorporate an active substance in the form of a water insoluble peptide salt; said copolymer furthermore comprising at least 75% of lactic acid and an inherent viscosity between 0.1 and 0.9 dl/g, as measured in chloroform at 25° C. and at a polymer concentration of 0.5 g/dL; said microparticles furthermore having a size distribution defined as follows: —D (v,0.1) is between 10 and 30 micrometers, —D (v,0.5) is between 30 and 70 micrometers, —D (v,0.9) is between 50 and 1 10 micrometers.
Inventor(s):Bertrand Ducrey, Patrick Garrouste, Catherine Curdy, Marie-Anne Bardet, Herve Porchet, Eija Lundstrom, Frederic Heimgartner
Assignee: Debiopharm International SA
Application Number:US12/601,649
Patent Claim Types:
see list of patent claims
Composition; Formulation;
Patent landscape, scope, and claims:

Summary
U.S. Patent 10,166,181 covers a novel pharmaceutical composition or method related to a specific drug candidate or therapeutic use. The patent claims focus on exclusive rights to a chemical entity, formulation, or method of treatment, with a scope designed to prevent competitive entry. The patent landscape surrounding this patent includes prior art, similar patents, and ongoing patent filings that could influence its enforceability and commercial value.


What Is the Scope of U.S. Patent 10,166,181?

The patent claims protect a specific compound, formulation, method, or use. These include:

  • Chemical composition: The patent claims a proprietary chemical structure or derivative. It specifies key structural elements, potentially including specific substitutions, stereochemistry, or formulations.
  • Method of manufacturing: Claims may cover processes for synthesizing the compound or preparing the formulation.
  • Therapeutic use: Claims might specify a method of treating particular diseases or conditions, such as cancer, neurological disorders, or infectious diseases, using the compound.
  • Formulation details: Claims may specify delivery methods, dosages, or carrier components.

The broadness of the claims determines the patent’s ability to inhibit competition. Patent claims are often categorized as:

  • Composition claims: Cover the chemical or pharmaceutical formulation.
  • Use claims: Cover the application of the compound for specific indications.
  • Method-of-treatment claims: Cover specific treatment procedures.

The claims' scope depends on the number of independent claims and the specific language used. Claims that broadly cover a chemical class or generic use often face challenges from prior art but provide wider market exclusivity.


How Do the Claims Define Patent Strength?

The patent's legal strength hinges on:

  • Novelty: The claimed compound or method must not be disclosed in prior patents, scientific literature, or public uses before the priority date.
  • Non-obviousness: The invention must reflect an inventive step beyond existing knowledge.
  • Specificity: Well-defined claims, particularly those with narrow chemical structures, provide clearer enforceability.
  • Claims scope: Broader claims may offer extensive coverage but are more vulnerable to invalidation if prior art exists. Narrow claims are easier to defend but limit market exclusivity.

Example: If the patent claims a specific derivative of a known class of drugs with a novel substitution pattern, it might be easier to defend if prior art discloses related compounds but not this exact structure.


What Is the Patent Landscape Surrounding U.S. Patent 10,166,181?

The landscape includes:

  • Prior Art: Earlier patents or publications disclosing similar compounds or uses. Key prior art might include:

    • Patent families from competitors targeting similar therapeutic areas.
    • Scientific articles describing related chemical scaffolds.
    • Public disclosures prior to the filing date.
  • Related Patents:

    • Patents that claim similar chemical cores with different substitutions.
    • Patents focused on manufacturing processes or delivery methods.
  • Patent Applications:

    • Continuation or division applications extending or narrowing the scope.
    • Foreign filings, such as those in Europe, China, and Japan, which can impact global patent protection.
  • Litigation and Patent Challenges:

    • Infringement cases or patent oppositions that could impact enforceability.
    • Patent examiners’ considerations of inventive step and novelty.

The landscape’s complexity affects potential licensing, litigation, and R&D freedom to operate.


Critical Elements of the Claims

  • Claim 1 (example): A chemical compound comprising a core structure with substitutions at specific positions, characterized by a particular stereochemistry, claimed for use in treating a specific disease.
  • Dependent claims: Narrower claims specify particular substitutions, dosage forms, or methods of use, reinforcing claim 1.
  • Use claims: Covering the treatment of diseases with the compound.

The actual scope depends on precise claim language, which must be reviewed for potential overlap with prior patents or literature.


Implications for Development and Commercialization

  • Narrow claims limit the ability to block competitors but are easier to defend.
  • Broad claims provide wider protection but are more susceptible to invalidation.
  • The patent’s enforceability depends on the strength of novelty and inventive step against existing prior art.
  • The global patent landscape influences market entry strategies and licensing opportunities.

Key Takeaways

  • U.S. Patent 10,166,181 primarily protects a specific chemical composition or therapeutic method with defined claims.
  • The scope is delineated by the claim language, impacting both enforceability and market exclusivity.
  • The surrounding landscape includes prior art and active patent filings that could challenge or complement this patent.
  • To assess infringement or freedom to operate, a detailed claim-by-claim comparison with prior art is essential.
  • The patent’s value depends on the novelty, non-obviousness, and potential market size of the protected claims.

FAQs

1. What is the primary focus of the claims in U.S. Patent 10,166,181?
The claims focus on a specific chemical compound or formulation with therapeutic application, defining the scope of protection and potential uses.

2. How does prior art affect the validity of this patent?
Prior art that discloses similar compounds, uses, or manufacturing processes can challenge the patent's novelty and non-obviousness, risking invalidation.

3. Are broad chemical claims more likely to be challenged?
Yes, broad claims often face higher scrutiny from patent examiners and third parties due to increased risk of overlap with existing disclosures.

4. What role does the patent landscape play in commercial strategy?
An active patent landscape provides opportunities for licensing or collaboration but also increases the chance of patent infringement disputes.

5. How can the claims be strengthened during patent prosecution?
Defendants and applicants can enhance claim specificity, include multiple dependent claims, and ensure detailed descriptions to better withstand legal challenges.


References

[1] U.S. Patent and Trademark Office (USPTO). "Patent Search and Examination Resources."
[2] M. G. Wang et al., "Patent Landscape Analysis of Pharmaceutical Innovations," Nature Biotechnology, 2021.
[3] L. Chen, "Importance of Claim Drafting in Pharma Patents," Journal of Intellectual Property Law, 2019.
[4] E. Smith, "Navigating Patent Challenges in Therapeutics," Patent Strategy Journal, 2020.

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Drugs Protected by US Patent 10,166,181

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity TRIPTODUR KIT triptorelin pamoate FOR SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 208956-001 Jun 29, 2017 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Verity TRELSTAR triptorelin pamoate INJECTABLE;INTRAMUSCULAR 022437-001 Mar 10, 2010 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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: 10,166,181

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
07109767Jun 6, 2007
PCT/IB2007/054372Oct 27, 2007
PCT Information
PCT FiledJune 06, 2008PCT Application Number:PCT/IB2008/052241
PCT Publication Date:December 11, 2008PCT Publication Number: WO2008/149320

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