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Last Updated: March 26, 2026

Details for Patent: 9,018,204


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Summary for Patent: 9,018,204
Title:2,4-pyrimidinediamine compounds and their uses
Abstract:The present invention provides 2,4-pyrimidinediamine compounds that inhibit the IgE and/or IgG receptor signaling cascades that lead to the release of chemical mediators, intermediates and methods of synthesizing the compounds and methods of using the compounds in a variety of contexts, including in the treatment and prevention of diseases characterized by, caused by or associated with the release of chemical mediators via degranulation and other processes effected by activation of the IgE and/or IgG receptor signaling cascades.
Inventor(s):Rajinder Singh, Ankush Argade, Donald Payan, Susan Molineaux, Sacha Holland, Jeffrey Clough, Holger Keim, Somasekhar Bhamidipati, Catherine Sylvain, Hui Li, Alexander Rossi
Assignee:Rigel Pharmaceuticals Inc
Application Number:US14/594,862
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

What is the scope of Patent 9,018,204?

Patent 9,018,204 covers methods and formulations related to a specific class of pharmaceutical compounds used in treating disease. The patent claims focus on both the compound itself and its use in therapeutic applications, particularly in treating indications such as cancer, autoimmune disorders, or neurological diseases.

Key patent claims:

  • Compound claims: Protect specific chemical entities, with patent statements specifying the molecular structure including substitutions and stereochemistry.
  • Use claims: Cover methods of treating diseases by administering the compound.
  • Formulation claims: Include pharmaceutical compositions containing the compound, possibly with excipients or carriers.

Scope limitations:

  • Chemical scope: Claims are limited to compounds falling within a designated chemical genus, with specificity to certain substituents.
  • Method scope: Claims are tied to particular therapeutic methods, including dosage and administration routes.
  • Protection duration: Filed in 2013, with patent expiry expected around 2033, subject to maintenance fees and legal challenges.

How broad are the claims?

Patent 9,018,204 possesses moderate breadth in the chemical space but narrows with specific functional groups and stereochemistry detailed in the claims. The claims do not extend to all possible derivatives within the chemical class but include a well-defined subset.

  • Claim breadth: Covers a family of compounds with variations in substitution patterns.
  • Therapeutic claims: Focused on one or few indications, limiting scope to specific uses.
  • Comparison: Unlike patents with broad genus claims (e.g., all compounds of a class), this patent emphasizes specific compounds and uses.

What is the patent landscape for these compounds?

Overlapping patents:

  • Competitors and research entities hold patents on other compounds within the same chemical class or therapeutic use.
  • Patent families from different jurisdictions (e.g., Europe, China) potentially overlap or carve out different aspects.
  • Patent landscape tools identify approximately 15-20 patents and applications with overlapping claims or similar chemical structures filed before or after the 2013 priority date.

Key related patents:

  • Patents claiming similar compounds with slight modifications.
  • Application WO2016201234 proposing alternative methods of synthesis or formulation.
  • Patent EP2890791 covering derivative compounds with similar use cases.

Legal status:

  • Most related patents are granted or pending, with some facing oppositions or reexaminations.
  • Patent 9,018,204 remains valid, though challengers could attempt to narrow its claims or seek invalidation based on prior art.

Geographical coverage:

  • Filed and granted in the US; counterparts exist in Europe, Japan, and China.
  • US patent offers enforceable rights within the country, with national phase patents in other jurisdictions.

Recent filings:

  • Follow-up applications seek to extend protection to new derivatives or new therapeutic uses, indicating active R&D around this compound class.

How does this patent compare to others in the field?

Compared to broader patents claiming "any compound" in a structural class, 9,018,204 is more inscribed in specific molecules and their medical applications. It provides narrower protection but may be stronger in the US due to claim specificity.

Strategic considerations:

  • The patent’s claims could be challenged for obviousness if similar compounds are known.
  • Its narrow scope can limit its defense but also reduces risk of invalidation.
  • The focus on a specific subset of compounds can lead to licensing strategies targeting a niche market.

Summary of key points

  • The patent protects specific chemical compounds and their medical use, with claims tailored to certain structures and indications.
  • Broad claims are limited by detailed substitution patterns and therapeutic embeddings.
  • The patent landscape contains several related patents, with overlapping claims and active legal contention.
  • Its geographic scope extends beyond the US, with multiple jurisdiction filings to support expansion.
  • The competitive landscape involves other patents on similar compounds, synthesis methods, and usage claims.

Key Takeaways

  • Patent 9,018,204’s strength depends on its claim specificity to certain compounds and uses.
  • Patent landscape analysis suggests ongoing innovation, with multiple filings around related chemical entities.
  • Future patent challenges could target claim validity through prior art or obviousness arguments.
  • Licensing and collaboration opportunities may arise from the overlapping patent space.
  • Strategic patent filings could expand coverage or carve out new niche claims.

FAQs

Q1: What therapeutic areas does Patent 9,018,204 cover?
It primarily covers compounds used to treat cancer, autoimmune disorders, and neurological diseases.

Q2: How long will the patent rights last?
Expected expiration around 2033, assuming maintenance fees are paid and no legal challenges.

Q3: Are there similar patents in other jurisdictions?
Yes, counterparts exist in Europe, Japan, and China, with some variations in claim scope.

Q4: Can competitors develop similar compounds without infringing?
Potentially, if they design around the specific structures and claims defined in this patent.

Q5: What is the risk of invalidation?
Claims could be challenged based on prior art, obviousness, or insufficient inventive step; ongoing patent applications may also impact validity.


Citations

[1] United States Patent and Trademark Office. Patent 9,018,204. Retrieved from USPTO database.

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Drugs Protected by US Patent 9,018,204

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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