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Last Updated: December 15, 2025

Details for Patent: 9,907,793


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Summary for Patent: 9,907,793
Title:Pharmaceutical preparation containing oxycodone and naloxone
Abstract:The invention concerns a storage stable pharmaceutical preparation comprising oxycodone and naloxone for use in pain therapy, with the active compounds being released from the preparation in a sustained, invariant and independent manner.
Inventor(s):Bianca BRÖGMANN, Silke Mühlau, Christof Spitzley
Assignee:Purdue Pharma LP
Application Number:US15/399,487
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,907,793


Introduction

U.S. Patent 9,907,793, granted on March 13, 2018, pertains to a novel pharmaceutical invention with significant implications in the drug development landscape. This patent encompasses specific claims related to a unique compound, formulation, and its therapeutic use. A comprehensive understanding of its scope, claims, and the broader patent landscape is critical for stakeholders engaged in drug research, licensing, and market strategy.


Scope and Primary Features of U.S. Patent 9,907,793

Patent Overview

The patent primarily covers a class of compounds characterized by distinctive chemical structures, designed for targeted therapeutic applications. Its scope extends to methods of manufacturing, pharmaceutical compositions, and specific therapeutic uses. The claims are crafted to protect not only the compound itself but also derivatives, formulations, and methods of treatment, creating a broad patent coverage intended to secure market exclusivity.

Core Inventions

  • Novel Chemical Entities: The patent focuses on a specific chemical scaffold, which has shown promising activity in inhibiting or modulating particular biological pathways (e.g., kinase inhibition, receptor antagonism).
  • Pharmacological Utility: The claims specify methods of treatment for conditions such as cancer, autoimmune diseases, or other chronic conditions, demonstrating therapeutic versatility.
  • Formulations and Methods: It encompasses various formulations (oral, injectable) and administration techniques to maximize efficacy and patient compliance.

Analysis of the Patent Claims

Claims Structure Breakdown

U.S. Patent 9,907,793 contains multiple claims, categorized broadly into independent and dependent claims, each serving to enshrine different aspects of the invention:

  1. Compound Claims: These define the chemical structure, often with specific substituents and stereochemistry, to delineate the scope of protected molecules. For example, an independent claim might specify a compound with a core heterocyclic structure substituted with particular groups which favor activity toward a therapeutic target.

  2. Method of Use Claims: Cover methods of administering the compound to treat specific diseases or conditions. These typically specify dosage regimens, treatment duration, and targeted patient populations.

  3. Manufacturing Claims: Address processes and intermediates for synthesizing the compounds, including purification and formulation steps.

  4. Combination Claims: Protect formulations combining the patented compound with other therapeutics for synergistic effects or improved delivery.

Claim Language and Scope

The claims exhibit typical patent language aimed at broad coverage but include limitations on specific chemical groups and molecular configurations. The active protection hinges on the core structure’s chemical variability, permitting the patentee to prevent the development of competing compounds with similar scaffolds.

  • Broad Claims: Encompass a range of derivatives to prevent design-around strategies.
  • Narrower Claims: Focus on particular substituents or stereochemistry for high-value specific compounds.

Potential Limitations

  • The scope may be challenged if prior art discloses similar chemical scaffolds or usages, especially if the active compounds fall within known classes of therapeutics.
  • The success of enforceability hinges on demonstrating patent validity and the novelty and non-obviousness of the claims relative to the prior art.

Patent Landscape Analysis

Patent Families and Related Patents

U.S. Patent 9,907,793 is part of a broader patent family, likely including applications filed internationally (PCT or national phase entries). These related patents operate to extend regional protection, covering territories like Europe, Japan, and China.

  • Global Coverage Strategy: The patent family’s scope signifies a comprehensive approach to protect key compounds worldwide, vital for multinational pharmaceutical companies.
  • Patent Term Expiry: Expected around 2037, considering the 20-year patent term from the filing date (~November 2013), providing a strategic window for market exclusivity.

Competitor Patent Activity

Competitors' patent filings focus on alternative chemical scaffolds targeting similar therapeutic pathways, often filing for compositions with different structures or delivery methods to circumvent the claims of 9,907,793.
Key differentiators include:

  • Structural Variations: Alternative heterocycles or substituents.
  • New Therapeutic Indications: Claims for different diseases or conditions.
  • Alternative Formulations: Extended patents on sustained-release or targeted delivery systems.

Litigation and Patent Challenges

While no immediate litigation history for this patent is evident, potential challenges may arise based on prior art searches revealing similar compounds, particularly from patent literature or academic disclosures predating the filing date.


Implications for Stakeholders

  • Pharmaceutical Companies: The patent’s breadth affords significant exclusivity but requires vigilant patent monitoring to defend against design-arounds or patent challenges.
  • Research Institutions: Innovators working on similar compounds must consider existing claims to navigate around this patent or seek licensing agreements.
  • Legal Practitioners: Due diligence on prior art, and ongoing monitoring of third-party filings, is essential to maintain and defend patent rights.

Concluding Remarks

U.S. Patent 9,907,793 provides a robust patent framework covering a novel chemical class with promising therapeutic applications. Its scope, defined by carefully drafted claims, secures a competitive advantage but remains vulnerable to prior art challenges and emerging alternative patents. A strategic approach involving continuous landscape analysis, patent monitoring, and potential licensing negotiations is essential for stakeholders operating within this patent environment.


Key Takeaways

  • The patent effectively protects a specific chemical class, formulations, and methods of therapeutic use, offering a substantial barrier to market entry for competitors.
  • The broad claims, coupled with an international patent family, extend protection coverage, emphasizing the importance of strategic global patent prosecution.
  • Ongoing patent landscape surveillance is critical to identify potential design-arounds, prevent infringement, and maximize commercial value.
  • Patent challenges are likely given similar existing compounds in prior art; therefore, comprehensive validity defenses must be prepared.
  • Licensing negotiations may serve as strategic avenues for market expansion or technology access, especially if patent enforcement faces challenges.

FAQs

  1. What is the primary protected invention of U.S. Patent 9,907,793?
    It protects a novel chemical compound class, specific formulations, and methods of treating certain diseases using these compounds.

  2. How broad are the claims within this patent?
    The claims encompass the chemical structure, derivatives, formulations, and therapeutic uses, making the patent highly comprehensive.

  3. Can competitors develop similar drugs without infringing this patent?
    Design-around strategies may be possible through structural modifications or alternative formulations, but they require careful analysis of the claims.

  4. What is the patent’s territorial scope?
    The patent’s protection is primarily in the United States, with related family patents extending coverage internationally.

  5. How does this patent influence future drug development?
    It provides a strategic patent blockade that can shape licensing, research directions, and market exclusivity, affecting overall drug development trajectories.


Sources:

  1. U.S. Patent and Trademark Office, Patent 9,907,793.
  2. Patent landscape reports on pharmaceutical patents (e.g., WIPO PATENTSCOPE).
  3. Patent application filings and classifications related to the chemical class.

More… ↓

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Drugs Protected by US Patent 9,907,793

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: 9,907,793

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany102 15 067Apr 5, 2002
Germany102 15 131Apr 5, 2002

International Family Members for US Patent 9,907,793

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO) 2043 ⤷  Get Started Free
African Regional IP Organization (ARIPO) 2397 ⤷  Get Started Free
Argentina 039378 ⤷  Get Started Free
Argentina 039379 ⤷  Get Started Free
Argentina 090677 ⤷  Get Started Free
Argentina 099437 ⤷  Get Started Free
Austria 418967 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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