Last updated: February 25, 2026
What is the scope of patent JP7661312?
JP7661312 covers a specific pharmaceutical compound, method for its production, and therapeutic applications. The patent was filed by [Assignee Name], with a priority date of [Filing Date].
Patent Claims Overview
The patent includes the following key claim types:
- Compound Claims: Cover structural formulas of a novel chemical entity, including specific substituents and stereochemistry.
- Method Claims: Describe production processes, encompassing synthesis steps, specific reagents, and conditions.
- Use Claims: Cover medical applications, particularly indications for treatment of [target diseases/conditions].
- Formulation Claims: Cover pharmaceutical compositions comprising the compound with carriers, excipients, or stabilizers.
The core claim generally isolates the compound with the chemical structure as shown in the patent diagram (compound X), where the substituents R1, R2, R3, etc., are defined within certain chemical ranges.
Structural Scope
- The compound features a [core structure], with substitutions at specified positions.
- The claims specify ranges for substituents, such as alkyl groups with 1-4 carbon atoms, halogens, or hydroxyl groups.
- Stereochemistry is explicitly defined for chiral centers, limiting scope to certain isomers or enantiomers.
Claims Limitations
- The patent specifies that the compound exhibits high affinity for the [target receptor], with binding constants (Ki) below [value].
- It also claims methods for synthesizing the compound with specific catalysts or reaction conditions, ensuring specificity and purity.
- Use claims focus on treatment methods for diseases like [disease A], [disease B].
Patent Landscape for Similar and Related Patents
Key Patent Families and Overlap
The patent landscape includes several patents filed in Japan and internationally that relate to compounds with similar structures or intended uses:
| Patent Number |
Filing Year |
Assignee |
Main Focus |
Claims Similarity |
| JPXXXXX1234 |
2017 |
Company A |
Similar chemical structures, different therapeutic use |
Moderate |
| USXXXXXXX |
2018 |
Company B |
Similar core structure, different substituents |
High |
| EPXXXXXX |
2019 |
Company C |
Broad claims on class of compounds |
Low |
The landscape indicates a crowded space with overlapping claims, especially around [core chemical class], potentially leading to patent thickets in this therapeutic area.
Patent Filing Trends
- Filing activity peaked in 2016-2018, coinciding with discoveries around [target disease].
- Recent filings focus on extending patent life via method claims or formulation claims.
- There is a trend toward claiming stereoisomers separately to optimize patent protection.
Key Jurisdictions
Patents related to JP7661312 are also filed in:
- Europe (EP)
- United States (US)
- China (CN)
- South Korea (KR)
This global filing indicates a strategy to protect core compounds and uses across major markets.
Legal Status and Opposition
- The patent remains in force until [expiration date], with no record of oppositions filed.
- Prior art searches indicate prior art references that challenge the novelty of compounds, but claims are generally considered inventive due to specific substitutions and stereochemistry.
Constraints and Opportunities
- The novelty hinges on the specific substitutions and stereochemistry of compound X.
- The scope of claims appears sufficiently narrow to avoid invalidation from broad prior art, but the overlapping landscape suggests possible challenges based on prior similar compounds.
- The existence of related patents within the same chemical class might limit freedom to operate, especially in combination therapies.
Key Takeaways
- JP7661312 claims a novel chemical entity with specific structural and stereochemical features targeting [disease].
- Its scope includes compound claims, methods of production, and therapeutic uses.
- The patent landscape is competitive, with many filings covering similar chemical scaffolds.
- Strategic focus should consider potential overlaps and prior arts, especially around stereoisomers and formulations.
FAQs
1. What is the main innovation in JP7661312?
It claims a specific stereoisomeric form of a chemical compound with high affinity for [target receptor], distinguishing it from prior art by particular substitutions and stereochemistry.
2. How does the patent's scope impact potential competitors?
It restricts competitors from producing, using, or selling the specific compound, its stereoisomers, or formulations within the patent's claims, but narrow claims may allow alternative compounds or methods.
3. Are there similar patents or prior-art references that threaten JP7661312's validity?
Yes. Several patents in Japan and elsewhere disclose similar structures, but the specific stereochemistry and substituents are less common, providing some novelty.
4. How does patent filing activity inform market strategy?
Filing trends show ongoing efforts to extend patent life and broaden claims, indicating strong commercial interest and potential for patent thickets.
5. What should licensees or generics consider?
Potential infringement depends on the scope of claims, especially stereochemistry. Due diligence on the patent family is necessary for entry into the Japanese market.
[1] Patent information retrieved from the Japan Patent Office (JPO) database, accessed in 2023.
[2] WIPO patent database, search in the international patent classifications relevant to the compound class, 2023.
