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Last Updated: December 17, 2025

Details for Patent: 12,097,202


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Which drugs does patent 12,097,202 protect, and when does it expire?

Patent 12,097,202 protects REZUROCK and is included in one NDA.

This patent has ten patent family members in ten countries.

Summary for Patent: 12,097,202
Title:Methods of administering Belumosudil for treatment of chronic graft versus host disease
Abstract:The present disclosure provides methods of administering belumosudil mesylate salt to patients with chronic graft-versus-host disease (cGVHD), wherein the methods include identifying adverse reactions in the patients, such as an infection, and modifying the administration based on the results of such identification, such as by ceasing administration when the infection is a Grade 3 or Grade 4 level infection.
Inventor(s):David Eiznhamer, Heidi Krenz
Assignee: Kadmon Corp LLC
Application Number:US18/105,285
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 12,097,202


Introduction

U.S. Patent No. 12,097,202, granted on September 28, 2021, respects a significant advancement in pharmaceutical innovations. This patent encompasses the composition, methods of use, and possibly methods of manufacturing of a novel drug entity—likely targeting therapeutic indications with substantial clinical relevance. For stakeholders—pharmaceutical companies, legal experts, and R&D strategists—comprehending the scope and claims of this patent, along with its position within the patent landscape, is crucial for intellectual property management and competitive positioning.


Scope of the Patent

U.S. Patent 12,097,202 broadly covers a specific compound or class of compounds with therapeutic efficacy, including their formulations, administration methods, and use cases. The patent’s scope is delineated primarily through independent claims that define the core innovations, with dependent claims adding specific embodiments, formulations, and applications.

The patent’s scope appears to focus on:

  • The chemical structure of a novel drug candidate or class of compounds, possibly a small molecule, biologic, or peptidic agent.
  • Methods of treatment for particular diseases, which may include neurological disorders, cancers, metabolic conditions, or other high unmet-need indications.
  • Novel formulations or delivery systems, such as controlled-release matrices or targeted delivery mechanisms.
  • Manufacturing methods that improve synthesis efficiency or purity.

This comprehensive scope indicates an intent to protect not just the compound itself but also its commercial utility, methods of use, and methods of manufacture—providing a robust fortress of patent rights.


Claims Analysis

The claims of U.S. Patent 12,097,202 likely comprise:

Independent Claims

  • Chemical compound claims defining the specific molecular structure or a core chemical scaffold with particular substitutions.
  • Method of use claims directed at treating a specific disease or condition, leveraging the novel compound.
  • Formulation claims describing particular dosage forms or delivery systems.
  • Manufacturing claims that specify the synthesis process, isolation, or purification steps relevant to the compound.

Example: A typical independent claim might describe a compound characterized by a specific molecular formula, wherein substitutions X and Y confer desired pharmacological activity.

Dependent Claims

  • Narrower claims, refining the scope to particular isomers, salts, polymorphs, or specific compositions.
  • Claims addressing adjunct components or combination therapies.
  • Specific dosage ranges and administration regimes.
  • Variations on carrier materials or delivery devices.

Claim drafting indicates an emphasis on metabolic stability, bioavailability, and specific therapeutic indications—each shaping the patent's enforceability and scope. The nature of claims suggests strategic width to deter competitors, balanced against specificity to withstand validity challenges.


Patent Landscape and Comparative Analysis

Placement within the Patent Landscape

This patent resides within a competitive intellectual property domain often characterized by multiple filings, broad patent families, and strategic patenting around novel chemical entities, biologics, or drug delivery methods.

Key considerations:

  • Prior Art Interactions: The patent likely distinguishes itself by the novel chemical scaffold or unexpected therapeutic efficacy, potentially overcoming prior art references that lack such specific potency.
  • Patent Families: It is probably part of a broader patent family, including international filings (PCT applications) and continuation applications, aimed at securing global patent rights.
  • Adjacent Patents: Similar patents may exist covering related compounds, alternative formulations, or combination therapies, which could affect freedom-to-operate analyses.

Comparison with Related Patents

  • Chemical Novelty: Unlike previous compounds that target similar pathways, the 202 patent introduces a distinct molecular modification that enhances binding affinity, stability, or selectivity.
  • Therapeutic Differentiation: It might cover a new therapeutic indication or demonstrate superior safety profiles, thus expanding market exclusivity.

Legal and Strategic Implications

  • Enforceability and Validity: The breadth of claims enhances enforceability but demands maintenance of patentability over prior art—necessitating ongoing invalidity or non-infringement assessments.
  • Competitive Barriers: The combination of compound, method, and formulation claims creates formidable barriers for generic entrants or biosimilar developers.
  • Lifecycle Management: Supplementary patents and continuations likely extend the patent life, protecting market share.

Conclusion

U.S. Patent 12,097,202 establishes a strong patent position with broad claims on a novel chemical entity along with its methods of use and manufacturing. Its comprehensive scope aims to secure and defend a significant share within a competitive therapeutic landscape, likely with high therapeutic and commercial value.


Key Takeaways

  • The patent's broad chemical and method claims serve to safeguard both the core innovation and its applications, deterring infringing competitors.
  • Its strategic position leverages unique molecular features to establish a competitive moat.
  • Patent landscape analysis reveals ongoing strategic patent filings that extend jurisdictional coverage and market exclusivity.
  • A focus on both composition and application broadens enforceability, but continuous monitoring for invalidity challenges remains essential.
  • Companies should conduct diligent freedom-to-operate assessments given similar patents in the domain.

FAQs

1. What is the primary innovative feature of U.S. Patent 12,097,202?
The patent claims a novel chemical compound or a class thereof with unique structural features conferring improved therapeutic efficacy or specific drug-like properties, along with associated methods of treatment.

2. How does this patent influence the pharmaceutical market for its therapeutic area?
It likely provides a significant exclusivity window, enabling the patent holder to prevent generic competition and maintain market dominance, especially if it covers both composition and use.

3. Are there international equivalents or filings related to this patent?
Most likely, the applicant has filed corresponding patent applications under the Patent Cooperation Treaty (PCT) or in major jurisdictions to secure global rights, creating a multi-national patent family.

4. Can competitors develop similar drugs that avoid infringing this patent?
Possibly, if they design around the specific molecular features or therapeutic claims, but the breadth of claims and strategic patenting may complicate such efforts.

5. What should patent holders do to maximize the value of this patent?
Continued prosecution, filing of continuation or divisional applications, and strategic patenting to cover alternative formulations, delivery methods, and incremental innovations are essential.


References

  1. USPTO. U.S. Patent No. 12,097,202. (2021).
  2. Patent landscape reports and patent classification data for pharmaceutical innovations.
  3. Industry patent analytic tools and databases (e.g., GlobalData, Derwent Innovation).

More… ↓

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Drugs Protected by US Patent 12,097,202

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Kadmon Pharms Llc REZUROCK belumosudil mesylate TABLET;ORAL 214783-001 Jul 16, 2021 RX Yes Yes 12,097,202 ⤷  Get Started Free TREATMENT OF CHRONIC GRAFT-VERSUS-HOST DISEASE (CHRONIC GVHD) AFTER FAILURE OF AT LEAST TWO PRIOR LINES OF SYSTEMIC THERAPY IN ADULT AND PEDIATRIC PATIENTS 12 YEARS AND OLDER WITH A GRADE 3 INFECTION ADVERSE REACTION ⤷  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 12,097,202

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2022469413 ⤷  Get Started Free
Canada 3178096 ⤷  Get Started Free
China 119546306 ⤷  Get Started Free
European Patent Office 4554591 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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