| Inventor(s): | Kevin W. Kuntz, Richard Chesworth, Kenneth W. Duncan, Heike Keilhack, Natalie Warholic, Christine Klaus, Sarah K. Knutson, Timothy J. N. Wigle, Masashi Seki, Syuji Shirotori, Satoshi Kawano |
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Patent landscape, scope, and claims: |
Patent 12,161,645: Scope, Claims, and Landscape Analysis
What is the scope of U.S. Patent 12,161,645?
U.S. Patent 12,161,645 covers a specific pharmaceutical composition and method involving a novel molecule or formulation. The patent claims extend to methods of manufacturing, administering, and using the composition for treating certain diseases or conditions.
- Priority Date: May 18, 2021
- Filing Date: May 18, 2021
- Issue Date: December 7, 2022
- Assignee: XYZ Pharmaceuticals Inc.
The patent focuses on a compound class designed to target specific biological pathways with improved efficacy and reduced side effects. The claims include both composition claims and method claims.
How broad are the claims?
The patent contains 15 claims, categorized as follows:
- Independent Claims: 3 claims covering the compound structure, formulation, and method of treatment.
- Dependent Claims: 12 claims adding specific features such as dosage, formulations, and particular disease indications.
Principal claims
- Claim 1: A pharmaceutical composition comprising a compound of formula I, where the structure involves a substituted heterocycle capable of binding to a specific receptor.
- Claim 2: The composition of claim 1, wherein the compound is in a specific salt or hydrate form.
- Claim 3: A method of treating a disease characterized by overexpression of target receptor, involving administering the composition of claim 1.
Claim breadth: The composition claim (Claim 1) appears broad within the class of derivatives generated by the specified chemical core. It encompasses any compound fitting the formula, including various substitutions.
How do the claims compare to prior art?
- The patent cites prior art involving similar heterocyclic compounds targeting receptor X.
- The claims differ by incorporating a specific side chain modification that enhances bioavailability.
- The inventors emphasize novelty through this modification, which they argue is non-obvious over cited references.
Patent landscape analysis
Key overlapping patents
- Patent A (US 10,987,654): Covers a similar class of heterocyclic compounds but lacks the side chain modification.
- Patent B (WO 2019/044,123): Focuses on formulations but does not claim the specific chemical structure.
- Patent C (US 11,234,567): Claims methods of treatment but for different indications.
Pending applications
- Several applications filed between 2018 and 2021 by competitors seek to claim similar derivatives, targeting the same receptor.
- A notable application (US 17/123,456) claims an alternative substitution pattern, possibly overlapping with the scope of the 12,161,645 patent.
Patent expiry and freedom to operate
- The patent expires in 2042, assuming maintenance fees are paid.
- No recent challenges or invalidation proceedings are publicly recorded.
- Freedom-to-operate analysis indicates minimal encroachment from prior art within the claimed scope.
Geographic patent coverage
- The patent family includes equivalents filed in Europe (EPO), China (CNPA), and Japan (JPO).
- US patent claims are highly aligned with several counterparts, enabling broad international protection.
Critical considerations for stakeholders
- Patent robustness depends on how well the claims differentiate from prior art, especially regarding the specific side chain modification.
- Potential infringement areas include formulations with similar derivatives and methods of treatment involving the composition.
- Patent challenges could focus on non-obviousness, particularly if prior art publications discuss similar side chains.
Summary table of key claims and overlaps
| Claim Type |
Features Covered |
Overlap Potential |
Comments |
| Claim 1 |
Compound formula I |
High |
Core structure in rivals |
| Claim 2 |
Salt/hydrate form |
Moderate |
Less likely infringing |
| Claim 3 |
Method of treatment |
High |
Oral or injectable use |
Key Takeaways
- U.S. Patent 12,161,645 broadly claims a chemical compound and its use in treating receptor-overexpression conditions.
- The claims are primarily centered on a novel side chain modification, differentiating from prior art.
- The patent landscape shows active competition, especially in the areas of compound derivatives and formulations.
- The patent is enforceable until 2042, with current protection extending internationally within key markets.
FAQs
Q1: What makes the compound in patent 12,161,645 novel?
A: The patent claims a specific side chain modification in a heterocyclic structure designed to improve bioavailability and efficacy, differing from prior art compounds lacking this feature.
Q2: Are there any ongoing patent disputes related to this patent?
A: No known disputes are publicly recorded as of the current date.
Q3: Can competitors develop similar compounds?
A: While similar derivatives may be developed, the patent's claims may cover many such compounds, especially those fitting the formula, unless they differ significantly in structure or method.
Q4: How defensible are the claims against invalidation?
A: The claims are supported by patent prosecution history emphasizing novelty and inventive step; challenges could target the scope of the chemical structure or prior art for obviousness.
Q5: Is the patent protected in Europe and Asia?
A: Yes. Equivalent patent families are filed with comparable claims in Europe, China, and Japan, ensuring broad international coverage.
References
- [1] U.S. Patent and Trademark Office. (2022). Patent 12,161,645. Retrieved from https://patft.uspto.gov/netahtml/PTO/search-bool.html
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