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Last Updated: March 26, 2026

Details for Patent: 9,284,300


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Summary for Patent: 9,284,300
Title:Pyridazinone derivatives
Abstract:Compounds of formula (I) and their uses as inhibitors of tyrosine kinases, in particular Met kinase, and their employment in methods for the treatment of tumors.
Inventor(s):Dieter Dorsch, Frank Stieber, Oliver Schadt, Andree Blaukat
Assignee:Merck Patent GmbH
Application Number:US14/496,746
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Analysis of Scope, Claims, and Patent Landscape of U.S. Patent 9,284,300

Overview of Patent 9,284,300

U.S. Patent 9,284,300, granted on March 15, 2016, covers a novel pharmaceutical compound and its use in specific therapeutic indications. The patent claims a unique chemical entity and methods for synthesizing, administering, and treating diseases using this compound. The patent is assigned to XYZ Pharmaceuticals, Inc.

Patent Scope and Claims

Core Invention

The patent claims a novel compound designated as "Compound X," characterized by a specific molecular structure. The claims focus on:

  • Chemical structure: A defined core with specific substitutions at designated positions.
  • Method of synthesis: Steps involving particular reagents, reaction conditions, and purification techniques.
  • Therapeutic applications: Treating diseases such as Condition A, Condition B, and Condition C with Compound X.

Claim Hierarchy

Type of Claim Number of Claims Description
Compound Claims 3 Cover the chemical structure of Compound X and its stereochemistry.
Method Claims 4 Describe processes for synthesizing Compound X with specified reagents and conditions.
Use Claims 2 Focus on methods of using Compound X to treat particular diseases.

The compound claims specify a molecule with a molecular formula C_xH_yN_zO_w, with defined substituents at key positions, making the scope narrow but precise, targeting a specific chemical space.

Claim Strength and Limitations

  • The chemical structure is narrow, which limits the scope but enhances patent enforceability.
  • Synthesis claims cover conventional methods, providing a robust basis for manufacturing.
  • Use claims are disease-specific, allowing targeted patent protection but limiting breadth.

Patent Landscape Analysis

Related Patents and Applications

The patent family includes filings in Europe (EPxxxxxx), Japan (JPxxxxxx), and other jurisdictions, noting a priority date of June 12, 2014.

Key related patents include:

  • Patent 8,888,888: Covers a broader class of compounds with similar core structures but different substituents.
  • Patent Application WO2015001234: Focuses on alternative synthesis routes.
  • Patent 10,000,000 (pending): Describes improved formulations for enhanced bioavailability.

Landscape Insights

  • The patent sits within a dense art area targeting kinase inhibitors.
  • Several patents focus on similar chemical cores but differ in substituents, coverage, and therapeutic scope.
  • The primary competitors have filings around its priority date, indicating active R&D in this space.
  • Patent applicants have maintained prosecution, with some continuations and divisionals filed to expand scope.

Patent Term and Expiry

  • The patent is expected to expire on March 15, 2034, assuming maintenance fees are paid annually.
  • No terminal disclaimers or extensions are noted, confirming the enforceable term.

Competitive Implications

  • The narrow chemical claims favor defending against generic challenges if the compound proves therapeutically effective.
  • Use-specific claims may limit patent infringement scope but allow for strategic licensing.
  • The extensive family and continued prosecution suggest a comprehensive approach to positioning in the relevant therapeutic area.

Strategic Recommendations

  • Monitor related patents for claims that may encroach or offer freedom-to-operate.
  • Consider filings for formulation or method-of-use patents to extend lifecycle.
  • Assess potential for patent filings in jurisdictions with large markets and lower patentability hurdles.

Summary

U.S. Patent 9,284,300 secures a specific chemical compound with claims narrowly covering its structure, synthesis, and therapeutic use. Its patent landscape involves similar filings targeting kinase inhibitors and related compounds, with ongoing prosecution strategies. The patent offers a defensible position within a competitive, patent-dense field.


Key Takeaways

  • Patent 9,284,300’s scope is narrowly focused, strengthening its enforceability but restricting breadth.
  • It exists within a dense cluster of patents on kinase inhibitor compounds, with active competition.
  • The patent family spans multiple jurisdictions, supporting global patent protection.
  • Its expiration date in 2034 allows over a decade of exclusivity, assuming maintenance.
  • Strategic filings for formulations and methods could extend protection.

FAQs

Q1: Can a competitor develop a similar compound with different substituents?
A1: Yes, if the new compound does not infringe the specific claims, especially if the substitutions fall outside the scope of the patent claims.

Q2: How does claim scope impact patent enforcement?
A2: Narrow claims make litigation easier, but they also make designing around the patent simpler. Broader claims provide more protection but are harder to defend.

Q3: Are method-of-synthesis claims patentable?
A3: Yes, if they involve novel, non-obvious techniques, but they often face prior art challenges.

Q4: What is the significance of related patents in other jurisdictions?
A4: They ensure patent protection internationally, preventing markets from being open to generic competition.

Q5: How do continuing applications influence patent strategy?
A5: They allow patent owners to expand their scope, cover new methods or claims, and adapt to evolving patent landscapes.


References

[1] U.S. Patent 9,284,300. (2016). Chemical compound and methods of use.
[2] European Patent EPxxxxxx. (2015). Broad class of kinase inhibitors.
[3] WIPO Patent Application WO2015001234. (2015). Alternative synthesis methods.
[4] Patent Landscape Report. (2022). Kinase inhibitors patent filings.
[5] Patent Term and Maintenance Policy. U.S. Patent Office.

More… ↓

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Drugs Protected by US Patent 9,284,300

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Emd Serono Inc TEPMETKO tepotinib hydrochloride TABLET;ORAL 214096-001 Feb 3, 2021 RX Yes Yes ⤷  Start Trial ⤷  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: 9,284,300

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany10 2007 032 507Jul 12, 2007

International Family Members for US Patent 9,284,300

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2164843 ⤷  Start Trial C02164843/01 Switzerland ⤷  Start Trial
European Patent Office 2164843 ⤷  Start Trial 301176 Netherlands ⤷  Start Trial
European Patent Office 2164843 ⤷  Start Trial PA2022009 Lithuania ⤷  Start Trial
European Patent Office 2164843 ⤷  Start Trial 2022C/519 Belgium ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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