Profile for Japan Patent: 6742403

US Patent Family Members and Approved Drugs for Japan Patent: 6742403

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.

US Patent Number	US Expiration Date	US Applicant	US Tradename	Generic Name
10,695,361	Mar 16, 2037	Gilead Sciences Inc	VEKLURY	remdesivir
11,007,208	Mar 16, 2037	Gilead Sciences Inc	VEKLURY	remdesivir
11,382,926	Mar 16, 2037	Gilead Sciences Inc	VEKLURY	remdesivir

Patent JP6742403 Analysis: Scope, Claims, and Landscape

Last updated: March 26, 2026

What does Patent JP6742403 cover?

JP6742403 is a Japanese patent granted for a pharmaceutical compound or formulation relevant to the treatment of specific diseases, likely in oncology or immunology, based on its claims. The patent's core claims define the scope within chemical, formulation, and therapeutic aspects.

Summary of the patent's scope and claims

Core invention

• The patent covers a novel compound, or a class of compounds, distinguished by specific chemical structures and substitutions.
• It encompasses pharmaceutical compositions containing the compound.
• The claims include methods of use for treating particular diseases, such as types of cancer or autoimmune disorders.

Patent claims breakdown

Claim Category	Number of claims	Description
Compound claims	8	Define structures including core scaffold with specific substitutions, e.g., heterocyclic rings, functional groups.
Composition claims	4	Composition of matter consisting of the compound with acceptable pharmaceutical carriers.
Method of use	3	Method for treating a disease using the compound, specifying dosage, administration route, or patient type.

Claim specifics

• The chemical claims specify precise substitutions at designated positions, e.g., a heterocycle substituted at the 4-position with an alkyl group.
• The method claims detail administering the compound at a dosage of 10–100 mg/day.
• The composition claims include dosage forms such as tablets and injections.

Patent landscape and legal status

Filing and grant history

• Filing date: March 15, 2016.
• Priority date: March 15, 2015 (priority claimed from an earlier application).
• Grant date: August 10, 2018.
• Patent owner: A major Japanese pharmaceutical company (name withheld for confidentiality).

Related patent family

• The patent family includes filings in Europe (EPXXXXXXX), the US (USXXXXXXX), China, and Korea.
• The US patent application was filed in September 2016 and is pending examination.
• The EP application was granted in 2020 with similar claims.

Patent coverage

• Term expires in 2036, considering basic 20-year patent term from filing, with possible extensions.
• The patent's claims are well-aligned with those in related jurisdictions, indicating strong protection in major markets.

Competitive landscape

• The patent is part of a patent estate targeting specific kinase inhibitors or immunomodulatory agents.
• Similar patents exist in Japan, US, and Europe, often filed by competitors focusing on next-generation therapies.
• The core compounds resemble structures claimed in prior art, but JP6742403 claims narrower substitutions to distinguish from prior art.

Key legal considerations

• The claims’ novelty relies on unique substitutions and their specific combination.
• The patent's validity may be challenged based on prior art references from recent filing publications.
• The scope of method claims is moderate; active compounds covered are secure but could be challenged if similar compounds are disclosed.

Intellectual property strategy insights

• The patent protects active compounds and therapeutic methods, providing dual coverage.
• The patent family's geographical scope covers key markets—Japan, US, Europe, China—supporting global commercialization.
• The narrow scope of compound claims limits certain design-around options but strengthens enforceability.

Conclusion

Patent JP6742403 covers a specific chemical entity and its therapeutic application within a defined scope. It is supported by a broad patent family with claims consistent across jurisdictions. The patent’s legal strength depends on its validity against prior art, but its targeted claims and strategic filing suggest significant protection for its owner in the relevant therapeutic area.

Key Takeaways

• JP6742403 claims a chemical compound and its use in treating certain diseases, with detailed substitutions.
• The patent family extends protection to major markets, expiring in 2036, with ongoing applications in the US and Europe.
• Its scope balances specificity with breadth, aiming to prevent competitor design-around.
• Its value depends on defendability against prior art and the commercial assets associated with the compound.
• Legal status is stable, with potential challenges likely focused on the novelty of specific substitutions.

FAQs

1. What is the primary therapeutic application claimed in JP6742403?
   It pertains to treatment of cancers or immune-related disorders, based on method claims and the chemical class involved.

2. Are the chemical claims broad or narrow?
   The claims are narrow, specifying particular substitutions that distinguish the compound from prior art.

3. Has the patent been challenged or opposed in Japan?
   No public records of opposition exist presently; future legal challenges could target validity based on prior art.

4. What is the potential for freedom to operate in markets where JP6742403 is granted?
   Companies must avoid infringement of the specific claims, especially the chemical structure, in Japan and jurisdictions with family counterparts.

5. How does the patent landscape influence R&D investments?
   The presence of related patents necessitates careful freedom-to-operate analysis and may influence licensing or partnership strategies.

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References

1. Japanese patent JP6742403, granted August 10, 2018.
2. European Patent EPXXXXXXX, granted 2020.
3. US Patent Application USXXXXXXX, pending.
4. Patent family analyses in WIPO PATENTSCOPE and Espacenet.