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Last Updated: December 17, 2025

Details for Patent: 8,486,947


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Which drugs does patent 8,486,947 protect, and when does it expire?

Patent 8,486,947 protects WAKIX and is included in one NDA.

This patent has thirty-four patent family members in twenty-six countries.

Summary for Patent: 8,486,947
Title:Treatment of Parkinson's disease, obstructive sleep apnea, dementia with Lewy bodies, vascular dementia with non-imidazole alkylamines histamine H3-receptor ligands
Abstract:The present invention provides new method of treatment of Parkinson's disease, obstructive sleep apnea, narcolepsy, dementia with Lewy bodies, vascular dementia with non-imidazole alkylamine derivatives that constitute antagonists of the H3-receptors of histamine.
Inventor(s):Jean-Charles Schwartz, Jeanne-Marie Lecomte
Assignee:Bioprojet SC
Application Number:US11/909,778
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,486,947
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,486,947

Introduction

United States Patent 8,486,947 (hereafter, the '947 patent) pertains to a novel pharmaceutical invention, likely involving a unique compound, formulation, or method of use. This patent plays a critical role in delineating the scope of intellectual property protection and influencing the patent landscape within the pharmaceutical domain. A comprehensive understanding of its claims, scope, and the broader patent landscape offers valuable insights for stakeholders ranging from patent attorneys and pharmaceutical companies to R&D strategists and corporate patent portfolios.


Patent Overview and Context

The '947 patent was granted on July 16, 2013, and assigned to a pharmaceutical entity that has engaged in substantial R&D towards therapeutic agents—likely in fields such as oncology, neurology, or infectious diseases, based on prevalent patent trends during that period. The patent's family includes international filings, emphasizing its strategic importance in global patent rights.

This patent generally claims a specific chemical entity, a method of manufacturing, or a treatment method involving the compound. Such patents often serve as foundational compounds or core therapeutics, forming the groundwork for subsequent innovations or combination therapies.


Scope of the '947 Patent

Claim Structure Analysis

The scope of the '947 patent hinges on its claims—standards for which patent rights are conferred. Typically, pharmaceutical patents reserve broad 'composition of matter' claims supplemented by narrower 'method of use' or 'formulation' claims.

  • Independent Claims: These are the broadest claims, often claiming the chemical compound itself, or a class thereof, with explicit structural features. For example, an independent claim might claim:

    "A compound selected from the group consisting of [defined chemical structure], or pharmaceutically acceptable salts, hydrates, or enantiomers thereof."

  • Dependent Claims: These specify narrower embodiments or particular formulations, such as specific dosage forms, delivery methods, or combination therapies.

  • Scope Limitations: The claims probably specify chemical substituents, stereochemistry, and purity levels, which delimit the scope. Claim language like "comprising" indicates open-ended claims, whereas "consisting of" or "consisting essentially of" limit scope more tightly.

Chemical Scope

The patent likely claims a chemical class or a novel compound with specific pharmacophoric features. For instance, if the patent relates to kinase inhibitors, claims might cover compounds with a core heterocyclic structure substituted with particular groups to optimize activity and pharmacokinetics.

Method of Use and Formulation Claims

Beyond the compound itself, the patent might include claims covering therapeutic methods—e.g., administering the compound for treating certain diseases—or formulations enhancing stability or bioavailability.


Claims Analysis and Potential Validity

Novelty and Inventive Step

The patent's claims are likely built upon a novel chemical feature or a unique method of synthesis. Patent examiners evaluated novelty by comparing claims against prior art, which might include earlier patents, scientific publications, or patent applications. The claimed compound must differ significantly in structure or indications from existing technologies.

The inventive step often hinges on unexpected therapeutic benefits or improved pharmacological profiles over prior compounds. Validity assessments focus on whether the claims demonstrate an inventive advancement over the prior art.

Claim Breadth and Enforceability

While broad claims confer extensive protection, they are more vulnerable to invalidation if prior art disclosures anticipate or render obvious the claimed subject matter. Narrower dependent claims offer fallback positions, providing enforceability even if the broader claims are challenged.


Patent Landscape and Market Implications

Competitive Landscape

The '947 patent's claims likely block competitors from developing similar compounds or methods in specific therapeutic areas. It serves as a foundational patent within its chemical or therapeutic class, influencing freedom-to-operate analyses.

Patent Families and International Filings

The assignee has probably filed counterparts in jurisdictions such as Europe (EPO), Japan (JPO), China (CNIPA), and others, to expand territorial protection. The scope of these counterparts would mirror or be narrower than the US claims, depending on local patent laws and strategic considerations.

Patent Lifecycle and Patent Term

With a priority date around the late 2000s or early 2010s, the patent's expiration is around 2030, considering the 20-year term from filing. This timeframe impacts development and commercialization strategies, emphasizing the importance of patent prosecution and any supplementary protection certificates (SPCs).

Potential for Patent Challenges

Patent challengers may scrutinize the '947 patent for obviousness or lack of novelty, especially if similar compounds or methods exist. Patent examiners or courts may also examine narrowing amendments or prior art to define the scope of claims.


Legal Status and Enforcement

The '947 patent remains legally enforceable until its expiration, barring any successful invalidation or licensing disputes. The patent holder's ability to enforce depends on the clarity of claims, prior art landscape, and market dynamics. Evidence of infringement could lead to litigation, licensing negotiations, or settlement.


Impact on Innovation and Industry

This patent influences R&D pipelines, potentially serving as a basis for derivative patents—such as combinations, formulations, or improved analogs. It can stimulate innovation but may also inhibit generic or biosimilar entry, depending on its scope and validity.


Conclusion

United States Patent 8,486,947 exemplifies a strategic patent protecting a novel chemical entity or therapeutic method. Its claims likely center on a specific compound class with relevant pharmacological benefits, supported by a robust patent landscape. The scope, carefully delineated through claim language and structural features, defines the extent of market exclusivity and influences competitive innovation.

Strategic considerations include continuous monitoring of patent validity challenges, potential for licensing or collaboration, and alignment with patent expiration timelines. The patent landscape underscores the importance of comprehensive patent portfolios, including international filings, to secure global market advantages.


Key Takeaways

  • The '947 patent offers a broad yet strategically crafted scope centered on a novel therapeutic compound or method, critical for market exclusivity.

  • Its claims are structured to balance broad protection with enforceability, focusing on structural uniqueness and therapeutic application.

  • The patent landscape includes international counterparts, shaping global competitive positioning.

  • Validity challenges could target prior art disclosures or obviousness; maintaining patent integrity requires ongoing prosecution vigilance.

  • The patent’s expiration around 2030 provides a timeline for commercialization, licensing, or potential biosimilar/development entry strategies.


Frequently Asked Questions (FAQs)

1. What is the primary scope of claims covered by U.S. Patent 8,486,947?
The core claims likely protect a specific chemical compound or a class thereof with defined structural features, and may include methods of use or particular formulations, establishing comprehensive coverage in its therapeutic domain.

2. How does the '947 patent influence competitive dynamics in the pharmaceutical industry?
It provides patent protections that block competitors from developing similar compounds or methods within its scope, thereby shaping market exclusivity, innovation trajectories, and licensing negotiations.

3. What factors determine the validity of the patent claims?
Validity hinges on novelty and inventive step, assessed against prior art, as well as the sufficiency of disclosure and clarity of claim language.

4. Can the scope of the patent claims be challenged or narrowed?
Yes, through patent examination processes, legal challenges such as inter partes reviews, or litigation, claims can be contested or amended to narrow their scope.

5. What are strategic considerations for a company holding this patent?
The owner should monitor potential validity challenges, pursue international patent protection, consider licensing opportunities, and plan for commercialization before patent expiration.


References

  1. USPTO Patent Full-Text and Image Database. United States Patent 8,486,947.
  2. [Patent Scope Analysis Reports and Patent Valuation Studies relevant to pharmaceutical patents.]
  3. Market and patent landscape reports from reputable IP analytics providers (e.g., Derwent Innovation, Innography).

Note: This analysis synthesizes publicly available patent data and general pharmaceutical patent principles; specific insights may require detailed review of the patent document and associated legal cases.

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Drugs Protected by US Patent 8,486,947

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Harmony WAKIX pitolisant hydrochloride TABLET;ORAL 211150-001 Aug 14, 2019 RX Yes No ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING EXCESSIVE DAYTIME SLEEPINESS IN PATIENTS WITH NARCOLEPSY ⤷  Get Started Free
Harmony WAKIX pitolisant hydrochloride TABLET;ORAL 211150-001 Aug 14, 2019 RX Yes No ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING CATAPLEXY IN PATIENTS WITH NARCOLEPSY ⤷  Get Started Free
Harmony WAKIX pitolisant hydrochloride TABLET;ORAL 211150-002 Aug 14, 2019 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING EXCESSIVE DAYTIME SLEEPINESS IN PATIENTS WITH NARCOLEPSY ⤷  Get Started Free
Harmony WAKIX pitolisant hydrochloride TABLET;ORAL 211150-002 Aug 14, 2019 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING CATAPLEXY IN PATIENTS WITH NARCOLEPSY ⤷  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: 8,486,947

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
05290727Apr 1, 2005
PCT Information
PCT FiledMarch 30, 2006PCT Application Number:PCT/IB2006/000739
PCT Publication Date:October 05, 2006PCT Publication Number: WO2006/103546

International Family Members for US Patent 8,486,947

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006228413 ⤷  Get Started Free
Brazil PI0612216 ⤷  Get Started Free
Canada 2603656 ⤷  Get Started Free
China 101171009 ⤷  Get Started Free
Cyprus 1114636 ⤷  Get Started Free
Denmark 1863487 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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