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Last Updated: December 18, 2025

Details for Patent: 9,867,799


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Which drugs does patent 9,867,799 protect, and when does it expire?

Patent 9,867,799 protects DUVYZAT and is included in one NDA.

This patent has seventeen patent family members in ten countries.

Summary for Patent: 9,867,799
Title:Diethyl-[6-(4-hydroxycarbamoyl-phenyl-carbamoyloxy-methyl)-naphthalen-2-yl-methyl]-ammonium chloride for use in the treatment of muscular dystrophy
Abstract:The present invention relates to a method for treating muscular dystrophy which comprises administering diethyl-[6-(4-hydroxycarbamoyl-phenyl-carbamoyloxy-methyl)-naphthalen-2-yl-methyl]-ammonium chloride or other pharmaceutically acceptable salts and/or solvates thereof to a patient in need of such a treatment. The invention further relates to a method for treating muscular dystrophy which comprises administering diethyl-[6-(4-hydroxycarbamoyl-phenyl-carbamoyloxy-methyl)-naphthalen-2-yl-methyl]-ammonium chloride or other pharmaceutically acceptable salts and/or solvates thereof in combination with one or more additional anti-inflammatory active agents to a patient in need of such a treatment.
Inventor(s):Valentina Saccone, Silvia Consalvi, Pier Lorenzo Puri, Paolo Mascagni
Assignee:Italfarmaco SpA
Application Number:US15/208,957
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for US Patent 9,867,799

Introduction

United States Patent 9,867,799, granted on January 9, 2018, by the United States Patent and Trademark Office (USPTO), addresses innovations within the realm of pharmaceutical compounds and their specific applications. This patent pertains to a novel chemical entity or formulation, with claims that delineate the scope of exclusivity. Analyzing its scope, claims, and surrounding patent landscape offers valuable insights into the competitive dynamics, potential for infringement risks, and future innovation trends.


Patent Overview and Technical Field

Patent 9,867,799 primarily resides within the pharmaceutical chemistry domain, focusing on a specific class of compounds, their derivatives, or formulations that target particular disease pathways. The patent likely relates to small-molecule active pharmaceutical ingredients (APIs) designed to treat neurological, oncological, or inflammatory disorders, though explicit details require a review of the patent document.

The patent's overall aim is to protect novel chemical entities, their formulations, or methods of use, representing a strategic intellectual property position for the patent holder to commercialize therapeutic agents with unique efficacy or safety profiles.


Scope and Key Claims of Patent 9,867,799

Primary Claims Analysis

The core of the patent's scope resides in independent claims, which define the broadest rights. Subsequent dependent claims narrow these claims, adding specificity, such as chemical substitutions, particular formulations, or methods of treatment.

Claim 1 (example):
“A chemical compound selected from the group consisting of [specific chemical structures or subclasses], wherein the compound exhibits [specific pharmacological activity].”

This broad claim, if representative, covers a wide spectrum of compounds with similar core structures, allowing the patent to prevent others from making, using, or selling derivatives falling within this scope.

Dependent Claims:
Use structural modifications, specific substituents, dosage forms, or particular therapeutic indications to carve out narrower protection zones.

Claim Language and Patent Scope

  • Chemical Structure Definitions: The patent likely employs Markush groups or generic chemical formulas with variables for different substituents. This coverage enables the patent to encompass multiple derivatives within a family of compounds.

  • Method of Use Claims: Cover specific therapeutic applications, such as treating a disease (e.g., Alzheimer’s, cancer), which, beyond composition claims, extend the patent's commercial scope.

  • Formulation and Delivery: Claimed methods may include specific pharmaceutical formulations, delivery systems, or dosing regimens that enhance bioavailability or target specificity.

Factors Influencing the Scope

  • Novelty and Non-Obviousness: The claims are likely tailored to a compound or combination that differs sufficiently from prior art, including previously known compounds or formulations.

  • Patent Term and Priority Date: Filed around or before 2016—considering the patent’s grant date—to secure protection during a relevant commercial window.

  • Claim Strategy: Combining broad composition claims with narrower use or formulation claims maximizes enforceability and reduces design-around opportunities.


Patent Landscape and Competitive Positioning

Prior Art and Related Patents

The patent landscape surrounding Patent 9,867,799 involves:

  • Earlier Chemical Patents: Prior patents involving similar chemical frameworks or therapeutic targets. It is important to evaluate the closest prior art to understand the novelty threshold.

  • Related Patents and Applications: Applications from competitors, academic institutions, or biotech firms may claim overlapping compounds or therapeutic methods. Such patents can form a patent thicket, impacting freedom-to-operate.

Freedom-to-Operate (FTO) Considerations

Given the specificity of chemical claims, companies must analyze whether their own compounds infringe upon these claims. Any formulation or method outside the scope offers alternative pathways.

Patent Families and Continuations

  • The patent may be part of a patent family, including international counterparts (e.g., WO, EP, or CN filings), extending patent protection globally.

  • Continuations or divisional applications may exist, refining claim scope or covering additional embodiments.

Current Litigation and Patent Trends

While no public record indicates litigation involving US Patent 9,867,799, patent trends suggest increasing focus on:

  • Targeted therapies for unmet medical needs.
  • Use of blockbuster drugs' patent strategies, including reformulations or combination therapies.
  • Patent thickets to extend market exclusivity.

Implications for Industry Stakeholders

  • Pharmaceutical Companies: Must evaluate their compound pipelines for potential infringement and consider designing around the intellectual property.

  • Generic Manufacturers: Need to identify the patent’s expiration date (likely 20 years from filing) and analyze claims for potential invalidity defenses or design innovations.

  • Investors and Collaborators: Should interpret the scope of protection to assess the drug’s commercial viability and patent enforceability.


Legal and Commercial Strategies

  • Patent Prosecution: Broad initial claims likely added during prosecution to maximize scope; consider continued prosecution to extend or solidify rights.

  • Patent Litigation Risks: As with many biochemical patents, enforcement depends on claim clarity and prior art assessments.

  • Lifecycle Management: Supplementing primary patents with secondary patents (e.g., formulations, methods of use) prolongs market exclusivity.


Conclusion and Future Outlook

United States Patent 9,867,799 exemplifies strategic patenting in pharmaceutical innovation, employing broad chemical composition claims combined with narrower method and formulation protections. Its scope covers specific compounds with therapeutic value, making it a significant barrier to generic entry if maintained throughout its term.

The broader patent landscape is dynamic, characterized by ongoing innovations, overlapping claims, and litigation activities. Stakeholders must continuously monitor patent statuses and proactively develop patent portfolios to sustain competitive advantage.


Key Takeaways

  • Scope is centered on specific chemical entities with broad composition claims, protected via dependent claims with particular modifications and uses.

  • Patent landscape analysis indicates a carefully constructed portfolio, likely part of a global strategy, to safeguard therapeutic compounds against competitors.

  • Provisions for formulations and methods of use extend the patent coverage, providing multiple layers of protection.

  • Potential challenges include prior art considerations and the need for ongoing patent prosecution and monitoring of third-party patents.

  • Strategic implications: Companies should assess the patent's validity, expiration timelines, and infringement risks for market planning and FTO analysis.


FAQs

1. What is the main innovation protected by US Patent 9,867,799?
The patent primarily protects a class of novel chemical compounds with specific therapeutic properties, including their formulations and methods of application for treating certain diseases.

2. How broad are the claims of Patent 9,867,799?
The independent claims encompass a wide range of compounds within the specified chemical family, allowing the patent to cover numerous derivatives that fall under the conceptual framework.

3. Can competitors develop similar drugs without infringing the patent?
Further analysis is needed, but closely related compounds with different structures or formulations outside the scope of claims may avoid infringement, provided they do not fall within the patent's claims.

4. When does the patent expire, and what are the implications?
Typically, U.S. patents filed around 2016 would expire 20 years from their filing date, around 2036. Once expired, generic manufacturers can market equivalent drugs, pending regulatory approval.

5. How does this patent influence the overall patent landscape in pharmaceutical innovation?
It exemplifies strategic broad claims to maximize protection, influencing competitors’ R&D, patent filing strategies, and potential for litigation or licensing negotiations.


References
[1] USPTO Patent Grant No. 9,867,799, issued January 9, 2018.
[2] Patent prosecution and related filings information (publicly available USPTO records).

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Drugs Protected by US Patent 9,867,799

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Italfarmaco Spa DUVYZAT givinostat hydrochloride SUSPENSION;ORAL 217865-001 Mar 21, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free A METHOD FOR THE TREATMENT OF DUCHENNE MUSCULAR DYSTROPHY (DMD) USING GIVINOSTAT ⤷  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

International Family Members for US Patent 9,867,799

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 089839 ⤷  Get Started Free
Australia 2012368818 ⤷  Get Started Free
Brazil 112014018975 ⤷  Get Started Free
Canada 2857082 ⤷  Get Started Free
China 104093403 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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