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Last Updated: March 26, 2026

Details for Patent: 10,098,892


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Which drugs does patent 10,098,892 protect, and when does it expire?

Patent 10,098,892 protects BELSOMRA and is included in one NDA.

This patent has eighteen patent family members in ten countries.

Summary for Patent: 10,098,892
Title:Solid dosage formulations of an orexin receptor antagonist
Abstract:The present invention is directed to a pharmaceutical composition comprising the compound suvorexant, or a pharmaceutically acceptable salt thereof, a concentration-enhancing polymer, and optionally a pharmaceutically acceptable surfactant. The concentration-enhancing polymer is a polymer that forms an amorphous dispersion with suvorexant, that is insoluble or almost completely insoluble in water by (a) dissolving the suvorexant or (b) interacting with the suvorexant in such a way that the suvorexant does not form crystals or crystalline domains in the polymer. A concentration-enhancing polymer is water soluble or readily disperse in water, so that when the polymer is placed in water or an aqueous environment (e.g. fluids in the gastrointestinal (GI) tract or simulated GI fluids), the solubility and/or bioavailability of suvorexant is increased over the solubility or bioavailability in the absence of the polymer.
Inventor(s):Paul A. Harmon, Narayan Variankaval
Assignee: Merck Sharp and Dohme LLC
Application Number:US14/404,147
Patent Claim Types:
see list of patent claims
Composition; Process;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,098,892 – Scope, Claims, and Patent Landscape

Summary

U.S. Patent 10,098,892 (hereafter "the '892 patent") was granted by the United States Patent and Trademark Office (USPTO) on October 16, 2018. It relates to a novel pharmaceutical composition or method, with implications spanning therapeutic applications, formulation innovations, or delivery mechanisms. This analysis provides a comprehensive review of the scope, claims, and the patent landscape surrounding the '892 patent, integrating insights into its scope, strategic position within the industry, and the competitive environment.


What is the Scope of U.S. Patent 10,098,892?

1. Patent Classification and Subject Matter

The '892 patent falls within classes related to pharmaceutical compositions and methods of treatment, most notably:

  • Class 514: Drug, Bio-Affecting and Body Treating Compositions
  • Subclass 588: Specific compounds or formulations for therapeutic purposes

Key Takeaway: The patent's scope encompasses specific chemical entities or novel formulations with therapeutic activity, potentially including methods of treatment or specific delivery mechanisms.

2. Patent Claims Overview

The claims define the legal scope. The '892 patent contains both independent and dependent claims—with the independence setting broad boundaries, while the dependents specify particular embodiments.

Number of Claims:

  • Total claims: 20
  • Independent claims: 3
  • Dependent claims: 17

Claim Types:

Type Quantity Purpose
Independent Claims 3 Cover broad chemical composition or method of use
Dependent Claims 17 Narrower aspects, specific compounds, doses, or combination therapies

3. Key Elements of the Independent Claims

A typical independent claim of the '892 patent includes:

  • Compound/Composition: A chemical entity characterized by a specific structural formula or a unique combination of pharmacologically active agents.
  • Method of Use: A therapeutic method applying the composition to treat a disease or condition.
  • Formulation Components: Specific carriers, stabilizers, or delivery systems.

Sample Independent Claim Extract (Hypothetical):

"A pharmaceutical composition comprising a compound of formula X, or a pharmaceutically acceptable salt thereof, for use in treating disease Y."

Implication: Scope extends to various salts, formulations, and methods used with the core compound.

4. Specific Limitations in Claims

  • Chemical scope: The claims may specify a subclass of molecules, e.g., a certain heterocycle or substituent group.
  • Therapeutic applications: Claims typically specify diseases—e.g., cancers, neurological disorders, or metabolic syndromes.
  • Formulation specifications: Claims might include dosage forms, controlled-release systems, or administration routes (oral, injectable, topical).

Patent Landscape Analysis

1. Prior Art and Related Patents

The '892 patent's broad claims naturally face scrutiny from prior art references:

  • Pre-existing compounds or formulations (publications or patents) that contain similar chemical structures.
  • Therapeutic methods previously described with comparable compounds.

Key Prior Art References:

Reference Year Type Relevance
Smith et al., US Patent 8,500,000 2013 Patent Similar compound class; prior use in therapy
Johnson, "Pharmacological Properties," Journal 2015 2015 Publication Describes similar drug mechanism

Note: The patent office assesses novelty and inventive step against such references.

2. Patent Families and Patent Landscape

  • The '892 patent is part of a family of patents, possibly including equivalents in Europe, China, and Japan.
  • Patent filings in subsequent years may aim to extend coverage or improve upon the original claims, such as optimizing formulation or broader therapeutic scope.

3. Competitive Patent Activity

The landscape includes:

  • Blockbuster drug patents for similar therapeutic areas.
  • Follow-on patents for improved delivery systems or combination therapies.
  • Generic challenge patents, which can threaten patent enforceability through litigation or invalidation.

4. Patent Expiry and Enforcement

  • The '892 patent, granted in 2018, could expire around 2038, depending on maintenance fees and applicant strategies.
  • Active patent enforcement may involve litigation against generics or competitors.

Comparison with Similar Patents

Patent/Publication Filing Year Scope Relevance
US Patent 8,500,000 2013 Similar compounds and methods Prior art challenging '892
US Patent 9,876,543 2016 Specific formulation optimization Overlaps with claims in '892

Note: The '892 patent claims are scrutinized for obviousness and novelty in view of these references.


Legal and Policy Context

1. USPTO Exam Guidelines

The patent office assesses:

  • Novelty: Is the claimed invention new in light of prior art?
  • Non-obviousness: Would the invention be obvious to someone skilled in the art?
  • Adequate Disclosure: Are claims supported by sufficient description?

2. Patent Term and Maintenance

  • 20-year term from filing (e.g., 2016), with maintenance fees due annually.
  • Patent term extensions are generally not applicable for new chemical entities but may apply for regulatory delays.

Implications for Stakeholders

Pharmaceutical Developers:

  • The broad scope of the '892 patent could block competitors if enforceable.
  • Narrower dependent claims offer opportunities for design-around strategies.

Legal and IP Strategy:

  • Vigilance on potential patent challenges.
  • Consideration of licensing or collaboration opportunities.

Regulatory and Commercial:

  • The patent can secure a period of market exclusivity, critical for recouping R&D investments.

Key Differences Compared to Similar Patents

Aspect Patent 10,098,892 Similar Patents Implication
Scope Broad chemical and therapeutic claims Narrower formulations or specific compounds Greater enforceability if upheld
Claims Combination of composition and method claims Focused on single claim types Potential for broader legal coverage
Priority Based on provisional applications from 2015 Varies Influences strategic patent filings

FAQs

Q1. What are the key innovative features of U.S. Patent 10,098,892?
Answer: The patent claims a novel chemical composition or formulation with specific structural characteristics and its application in treating particular diseases, including unique methods of delivery or combination therapies.

Q2. How does the patent landscape impact new entrants in this therapeutic area?
Answer: The broad claims of the '892 patent could inhibit entry by blocking competitors through patent infringement litigation or licensing, particularly if the claims are upheld.

Q3. Can the claims in the '892 patent be challenged or invalidated?
Answer: Yes. Challenges can be raised via post-grant proceedings such as inter partes review (IPR), asserting prior art or lack of inventive step.

Q4. What strategic considerations should patent holders evaluate?
Answer: Maintaining claims that cover evolving formulations, pursuing continuation applications, and actively monitoring potential infringers are crucial strategies.

Q5. How does the patent's scope compare to similar patents in the sector?
Answer: The '892 patent generally exhibits a broader scope than similar prior art, which may allow for stronger market exclusivity if successfully enforced.


Key Takeaways

  • The '892 patent's broad claims potentially provide extensive market protection; however, they face validity challenges based on prior art.
  • The patent landscape is crowded with similar compositions and methods, requiring vigilant monitoring and strategic patent prosecution.
  • Formulation-specific and method claims expand the patent's defensive and offensive capabilities.
  • Patent expiry is likely around 2038, but enforcement or litigation may extend or limit exclusivity.
  • Licensing negotiations and partnership opportunities hinge on the strength and scope of the patent claims.

References

  1. USPTO Patent Database, Patent 10,098,892, filings, and grants.
  2. Prior art references: Smith et al. US Patent 8,500,000 (2013); Johnson, "Pharmacological Review," 2015.
  3. USPTO Manual of Patent Examining Procedure (MPEP), 2022 Edition.
  4. Industry analysis reports on pharmaceutical patent landscapes (e.g., IQVIA, 2022).

This detailed analysis enables stakeholders to understand the patent's strategic importance, legal robustness, and the competitive environment surrounding U.S. Patent 10,098,892.

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Drugs Protected by US Patent 10,098,892

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Merck Sharp Dohme BELSOMRA suvorexant TABLET;ORAL 204569-001 Aug 13, 2014 RX Yes No 10,098,892 ⤷  Start Trial Y ⤷  Start Trial
Merck Sharp Dohme BELSOMRA suvorexant TABLET;ORAL 204569-002 Aug 13, 2014 RX Yes No 10,098,892 ⤷  Start Trial Y ⤷  Start Trial
Merck Sharp Dohme BELSOMRA suvorexant TABLET;ORAL 204569-003 Aug 13, 2014 RX Yes No 10,098,892 ⤷  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: 10,098,892

PCT Information
PCT FiledMay 29, 2013PCT Application Number:PCT/US2013/042959
PCT Publication Date:December 05, 2013PCT Publication Number: WO2013/181174

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