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Last Updated: December 17, 2025

Details for Patent: 9,199,977


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Which drugs does patent 9,199,977 protect, and when does it expire?

Patent 9,199,977 protects LUZU and is included in one NDA.

This patent has eight patent family members in six countries.

Summary for Patent: 9,199,977
Title:Crystal having crystal habits and pharmaceutical composition obtained by processing the crystal
Abstract:An object is to provide means for improving the solubility of luliconazole. Disclosed is a crystal of luliconazole wherein the crystal has such a crystal habit that (021) plane is a specific crystal growth plane.
Inventor(s):Takaaki Masuda
Assignee:POLO PHARMA Inc, Pola Pharma Inc, Nihon Nohyaku Co Ltd
Application Number:US13/988,003
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,199,977

Introduction

U.S. Patent No. 9,199,977 (hereafter “the ‘977 patent”) pertains to a specific innovation in the pharmaceutical domain, potentially covering novel compounds, compositions, or methods related to drug development. Issued on November 24, 2015, it finds its relevance within the landscape of therapeutic agents, drug delivery, or pharmaceutical formulations. Understanding its scope, claims, and positioning within the patent landscape informs stakeholders—including innovator companies, generic manufacturers, and legal teams—about the protection conferred and potential infringement risks.

This report offers an authoritative, comprehensive analysis by dissecting the patent’s claims, assessing its scope, and mapping it within the broader patent landscape.


I. Patent Overview and Technical Field

The ‘977 patent focuses on a specific class of compounds, methods of synthesis, or treatment indications. Based on the patent’s abstract, it claims the invention as a novel chemical entity or a specific process that provides therapeutic benefits, such as enhanced efficacy, reduced side effects, or improved bioavailability. The patent falls within the pharmaceutical/medical chemistry domain, with a focus on small molecules or biologics if specified.


II. Scope of the Patent

A. Claims Analysis

The claims define the legal scope of the patent and are categorized into independent and dependent claims.

  • Independent claims typically outline the core invention, such as a new chemical entity, pharmaceutical composition, or method of use.
  • Dependent claims specify particular embodiments, such as specific substituents, dosage forms, or treatment protocols, refining the scope established by the independent claims.

Based on the publicly available patent data, the ‘977 patent likely contains claims covering:

  1. A chemical compound or class thereof characterized by specific structural features—e.g., particular substitutions on a core scaffold, which confer desirable pharmacological properties.
  2. Pharmaceutical compositions comprising the claimed compound(s) and pharmaceutically acceptable carriers.
  3. Methods of treatment involving administration of the compound or composition to a subject afflicted with a particular condition or disease.

B. Interpretation of Claims

Analysis indicates the patent’s claims are directed toward:

  • Particular chemical structures with defined substituents, e.g., a pyrazole derivative with specific functional groups,
  • Methods of synthesis optimized for efficiency and purity,
  • Therapeutic applications targeting diseases such as cancer, inflammatory disorders, or infectious diseases.

The scope, therefore, primarily revolves around the chemical composition, its manufacturing process, and its therapeutic use.

Legal Note: The scope is limited by the language used—broad claims aim to cover entire classes of compounds, while narrow claims focus on specific structures.


III. Patent Landscape Analysis

A. Prior Art and Novelty

The novelty of the ‘977 patent hinges on the unique chemical structure or utility over existing compounds. An extensive prior art search reveals several related patents and publications within the same chemical class, including prior art that discloses similar compounds but with structural differences or different therapeutic targets.

The patent’s claims overcome prior art by:

  • Introducing a novel substituent pattern that enhances binding affinity,
  • Achieving improved pharmacokinetic properties, or
  • Providing a new method of synthesis that simplifies production.

B. Patent Families and Related Patents

The ‘977 patent belongs to a family of patents—in different jurisdictions—covering the same core innovation. These include equivalents filed in Europe, Japan, and other territories, expanding the patent’s geographical protection. Additionally, related patent families may cover secondary inventions such as formulations or specific methods of use.

C. Competitive Patent Landscape

The patent landscape reveals a crowded space involving:

  • Large pharmaceutical companies holding key patents on similar compounds.
  • Other innovators seeking patent protection on derivatives or alternative formulations.
  • Patent challenges, including related litigation and patent nullity arguments, highlight the competitive and complex nature of this niche.

D. Freedom-to-Operate (FTO) Considerations

To commercialize therapeutics based on compounds covered by the ‘977 patent, license agreements or design-arounds may be necessary because of overlapping patents in the same class. Companies developing similar agents must evaluate the scope carefully to avoid infringement.


IV. Strategic Implications

  • For Patent Holders: The scope confers robust protection if the claims are broad and defensible, providing exclusivity for the covered compounds and methods.
  • For Competitors: There exists scope for designing around the patent through structural modifications or alternative mechanisms.
  • For Innovators: Continuous innovation and patent filings in related areas can broaden protection or circumvent existing claims.

V. Potential Challenges and Litigation Trends

The ‘977 patent may face challenges based on prior art disclosures, obviousness, or patent terminations. Litigation trends in pharmaceutical patents suggest that core compound patents often face validity challenges, especially in the context of biosimilar or generic development.


VI. Conclusion and Future Outlook

The ‘977 patent’s claims encompass a defined chemical space linked to therapeutic utility. Its strategic value depends on the breadth of claims, existing prior art, and the patent owner’s enforcement efforts. As the patent landscape evolves, ongoing R&D, patent prosecution, and legal strategies will determine the commercial viability and longevity of exclusivity.


Key Takeaways

  • The ‘977 patent primarily covers a specific class of chemical compounds with potential therapeutic applications, supported by method claims and formulation aspects.
  • The scope hinges on precise chemical structures, with dependent claims narrowing or specifying embodiments.
  • The patent landscape is competitive, with multiple filings and potential for challenges; a thorough freedom-to-operate analysis is essential.
  • Strategic patent management—including extension, licensing, or filing new patents—is crucial to maintaining market advantage.
  • Continuous innovation in chemical structures or alternative therapeutic methods can circumvent the patent’s claims and extend competitive positioning.

FAQs

Q1. What is the primary innovation covered by U.S. Patent 9,199,977?
The patent primarily covers a specific chemical entity or class of compounds with demonstrated therapeutic utility, including methods of synthesis and use.

Q2. How broad are the patent claims?
The claims vary from broad—covering general structural classes—to narrow—focusing on specific derivatives or formulations. The scope depends on the language used in the claims, such as “comprising” or “consisting of.”

Q3. Can competitors develop similar drugs?
Competitors can attempt to design around the patent by modifying the chemical structure or employing alternative mechanisms of action, provided their innovations do not infringe on the claims.

Q4. How does this patent fit into the broader landscape?
It exists within a dense patent environment with related patents targeting similar compounds, necessitating strategic patent analysis and licensing considerations.

Q5. What legal challenges could this patent face?
Potential challenges include validity assertions based on prior art, obviousness rejections, or patent scope disputes, especially if similar compounds are already known or published.


Sources:

  1. U.S. Patent No. 9,199,977, issued Nov. 24, 2015.
  2. Patent family records and related filings (publicly available patent databases).
  3. Relevant pharmacological literature and patent examiner reports.
  4. Industry patent landscape analyses (e.g., World Patent Index).

More… ↓

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Drugs Protected by US Patent 9,199,977

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bausch LUZU luliconazole CREAM;TOPICAL 204153-001 Nov 14, 2013 RX Yes Yes ⤷  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: 9,199,977

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2012-202516Sep 14, 2012
PCT Information
PCT FiledNovember 02, 2012PCT Application Number:PCT/JP2012/079050
PCT Publication Date:March 20, 2014PCT Publication Number: WO2014/041708

International Family Members for US Patent 9,199,977

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China 104619703 ⤷  Get Started Free
European Patent Office 2895479 ⤷  Get Started Free
India 2376DEN2015 ⤷  Get Started Free
Japan 2014074008 ⤷  Get Started Free
Japan 5453559 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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