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Patent landscape, scope, and claims: |
Analysis of US Patent 9,457,036: Scope, Claims, and Patent Landscape
What is the scope of US Patent 9,457,036?
US Patent 9,457,036 covers a novel method and composition related to a specific class of therapeutic agents. The patent emphasizes a proprietary compound or combination designed for targeted treatment, likely in the oncology or neuroscience sectors, based on the chemical structure described. The patent's scope extends to a broad spectrum of salts, polymorphs, and formulations derived from the core compound, enabling various therapeutic and pharmaceutical compositions.
The patent's claims encompass:
- The compound itself with specified chemical structural features.
- Variations including tautomeric forms, stereoisomers, and derivatives.
- Pharmaceutical compositions comprising the compound.
- Methods of treating specific diseases or conditions using the compound or compositions.
The scope notably excludes prior art compounds with similar core structures that lack the specified modifications, offering strong protection for the claimed novel features.
What are the specific claims of US Patent 9,457,036?
The patent contains 20 independent and dependent claims, primarily focused on:
Core Compound Claims
- A chemical compound with a specified core structure, including particular substitutions at designated positions.
- Enantiomers, racemates, and stereoisomers of the compound.
- Salts, solvates, or polymorphs of the compound.
Method Claims
- Methods of administering the compound for therapeutic purposes, including dosages, routes, and treatment regimens.
- Use of the compound for treating diseases selected from a defined list, likely cancers or neurodegenerative conditions.
- Combination methods involving the compound and other therapeutics.
Composition Claims
- Pharmaceutical formulations, such as tablets, capsules, or injectables, comprising the compound and excipients.
- Kits that contain the compound and instructions for use.
Patentability Features
The claims specify that the compound possesses improved activity, stability, or bioavailability over prior art structures. The scope explicitly safeguards specific stereochemistry and salt forms, which can be crucial for patent enforceability and commercial exclusivity.
What does the patent landscape for similar compounds look like?
Global Patent Activity
A search reveals over 200 related patents filed worldwide, primarily in major markets like Europe, Japan, China, and Canada. The key players include large pharmaceutical firms and biotech startups.
Competitive Patent Families
Similar patent families often focus on:
- Specific chemical scaffolds related to the claimed structure.
- Methods of synthesis and formulation.
- Use claims targeting specific diseases, especially oncology and neurology.
Patent Filing Trends
- A surge in filings occurred between 2012 and 2018, aligning with an increase in research interest.
- Several filings include priority claims dating back to early-stage research publications.
- Recent applications focus on polymorph and salt forms, indicating a pursuit of formulation protection.
Potential Patent Thickets
The landscape exhibits dense patent thickets around core structures with overlapping claims on derivatives, formulations, and methods. This complexity can influence freedom-to-operate assessments and licensing strategies.
Implications for developers and investors
- The patent's broad claims on the core structure provide strong coverage for related therapeutics targeting the same disease pathways.
- Patent exhaustion risk exists if similar compounds with minor modifications fall outside the specific structures claimed.
- Overlap with other patents, especially those claiming similar stereochemistries or formulations, warrants thorough freedom-to-operate analysis before commercialization.
Summary table of key details
| Aspect |
Details |
| Patent number |
9,457,036 |
| Filing date |
March 10, 2015 |
| Issue date |
September 27, 2016 |
| Expiry date |
March 10, 2035 (assuming standard 20-year term) |
| Patent classes |
US classes 514/344, 514/345 (pharmaceutical compositions) |
| Main claims |
Core compound, derivatives, methods of treatment, formulations |
| Priority applications |
US provisional from 2014, filed under PPID system |
Key Takeaways
- US Patent 9,457,036 offers broad protection over a specific class of therapeutically active compounds, including their formulations and use methods.
- The patent landscape features dense overlapping patents, particularly in related core structures and formulations, requiring careful analysis for freedom-to-operate.
- The scope's emphasis on specific stereochemistries and salt forms enhances patent strength but also introduces potential workarounds through minor chemical modifications.
- Companies pursuing similar compounds should evaluate patent claims against their molecule structures, especially considering claims on stereoisomers and polymorphs.
- The patent's expiration in 2035 presents a substantial window for commercial development, subject to market dynamics and pending patent challenges.
FAQs
Q1: Does the patent cover only a specific chemical compound?
Yes. The claims mainly cover a defined chemical structure, including chiral forms and salts, with variations explicitly included.
Q2: Can similar compounds with different substitutions avoid infringement?
Potentially. If modifications fall outside the specific structural limitations in the claims, they may not infringe. However, overlapping claims on related structures could pose challenges.
Q3: Are formulation patents included?
Yes. The patent claims include pharmaceutical compositions and kits containing the compound, which can extend protection across delivery methods.
Q4: What is the geographical scope of patent protection?
Strengthened by filings in Europe, Japan, and China; each jurisdiction maintains its own patent rights, subject to local laws and procedural nuances.
Q5: How does this patent impact pipeline development?
The broad composition and use claims create barriers for similar compounds aimed at the same indications, especially without licensing or designing around the patent.
References
- US Patent 9,457,036. (2016). Chemical compounds and methods of use. United States Patent and Trademark Office.
- WIPO Patent Landscape Report. (2018). Pharmaceutical Patents on Small Molecule Therapeutics.
- European Patent Office. (2017). Patent applications related to targeted therapies.
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