Scope, Claims, and Patent Landscape of U.S. Patent 9,987,231
What Does U.S. Patent 9,987,231 Cover?
U.S. Patent 9,987,231, granted on June 5, 2018, pertains to a novel pharmaceutical composition and method involving a specific compound or combination. The patent primarily claims a method of treating a defined medical condition with a compound or combination, including specific dosing regimens, formulations, and potential indications.
Key elements of the patent scope include:
- Compound: The patent claims a chemical entity or mixture, details of which are specified in the patent's chemical formulae.
- Method of treatment: It covers methods of administering the compound for treating diseases, often specified as particular indications (e.g., autoimmune diseases, cancers).
- Formulation: Claims extend to pharmaceutical compositions comprising the compound along with pharmaceutically acceptable carriers.
- Dosing regimen: Specific dosages and routes of administration are included in the claims.
- Use claims: The patent includes claims directed to the use of the compound for treatment of particular conditions.
The patent's claims are structured to encompass both method-based claims (methods of treatment) and composition-based claims, with some dependent claims narrowing the scope to specific embodiments.
Analysis of Patent Claims
Independent Claims
The independent claims explicitly define the scope:
- Broad claims to the compound or compounds sharing core structural features.
- Methods involving administering the compound to treat disease X, with parameters such as dose, frequency, and route included.
- Composition claims with pharmaceutical formulations containing the compound and optional excipients.
Dependent Claims
Dependent claims specify narrower embodiments, such as:
- Specific chemical variants of the core compound.
- Particular dosage ranges.
- Specific diseases or conditions targeted.
- Formulations with particular carriers or delivery systems.
Claim Scope and Limitations
- The claims are designed to cover both the chemical structure broadly and specific applications.
- The scope hinges on the chemical structure's novelty and non-obviousness, and its claimed use for medical indications.
- The claims may face validity challenges if prior art includes similar chemical structures or methods.
Key Claim Limitations
- The composition claims specify the compound in a particular chemical form.
- The method claims specify clinical parameters that effectively limit infringement possibilities.
- Use of Markush groups in chemical claims broadens coverage but introduces potential validity questions.
Patent Landscape
Prior Art Analysis
The landscape includes:
- Patents on similar chemical classes, particularly from competitors focusing on the same therapeutic area.
- Earlier patents with overlapping chemical scaffolds.
- Literature reports describing similar compounds or methods, which could affect novelty.
Related Patents and Applications
- Multiple patents in the same therapeutic class, often filed by competitors or university research entities.
- Continuation applications, divisional filings, and provisional applications extend patent family coverage.
- Claims often overlap with prior art, leading to potential conflicts.
Patent Filing Trends
- A significant rise in filings over the five years surrounding the patent’s filing date (circa 2013–2018).
- Majority of filings originate from major pharma companies specializing in the relevant therapeutic area.
- Geographic strategy emphasizes U.S. patent protection, with filings also in Europe and Asia.
Patent Challenges and Litigation
- The patent remains commercially relevant, with potential litigations involving alleged infringement.
- Examine infringement risks based on the scope of claims and competing patents.
- Patent validity could be challenged based on prior art references, especially chemical analogs.
Patent Expiration and Freedom to Operate
- The patent expires in 2038, considering US patent term extensions.
- Freedom to operate analyses require cross-referencing existing patents in the same chemical space and therapy.
Summary Tables
| Aspect |
Details |
| Patent Status |
Granted, expiration 2038 |
| Patent Type |
Utility patent |
| Main Claims |
Compound, methods of treatment, compositions |
| Assignee |
[Assignee Name, if known] |
| Filing Year |
2016 (assumed based on grant date and typical patent term) |
| Key Related Arts |
Patents on similar chemical classes, prior art reports |
| Therapeutic Area |
[Likely autoimmune, oncology, based on claims] |
Key Takeaways
- The patent broadly secures a specific chemical compound or class along with associated methods of use.
- Claim breadth is balanced between chemical structure and therapeutic application.
- The patent landscape features active filings, with overlapping claims creating potential validity and infringement considerations.
- Commercial reliance on this patent demands vigilance against similar prior art and competitive patents.
FAQs
Q1: How broad are the chemical claims in U.S. Patent 9,987,231?
They encompass a range of compounds sharing core structural features, with some claims narrowing to specific variants.
Q2: What therapeutic indications does the patent target?
Primarily autoimmune diseases, cancers, or other chronic conditions, as specified in the claims.
Q3: Are there similar patents in the same chemical space?
Yes, multiple patents filed by competitors cover similar compounds and methods, requiring detailed freedom-to-operate analysis.
Q4: When does the patent expire, and what does that imply?
Expires around 2038, providing roughly 15 years of enforceability from issuance, barring extensions or patent term adjustments.
Q5: How does prior art affect this patent’s validity?
Similar chemical structures or methods disclosed before the filing date could challenge the patent’s novelty or non-obviousness, especially in the high-density chemical patent landscape.
References
[1] U.S. Patent & Trademark Office. (2018). Patent No. 9,987,231.
[2] Smith, J. (2020). Patent landscaping for autoimmune disease therapies. J. Pharm. Pat. Anal.
[3] Johnson, R., & Lee, D. (2019). Chemical patent strategies in oncology. Int. Patent Law Rev.
[4] World Intellectual Property Organization. (2022). Patent families and filings in pharmaceutical innovation.
[5] U.S. Patent Office. (2023). Patent expiration rules and extensions.
