| Abstract: | Extended release pyridostigmine dosage forms, suitable for maintaining stable plasma concentrations with reduced or minimized initial burst release/dose dumping of pyridostigmine, are provided. The dosage forms include matrix tablets, gastroretentive tablets, and pellets, the latter being suitable for dosing in capsules, tablets, and sachets, as well as for sprinkling on foodstuffs. The disclosure also provides methods for improving patient compliance by administering once-a-day extended release pyridostigmine bromide dosage forms that provide a superior controlled drug release. |
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Patent landscape, scope, and claims: |
Patent Landscape and Claims Analysis for U.S. Patent 11,229,606
What Is the Scope of U.S. Patent 11,229,606?
U.S. Patent 11,229,606 covers a novel pharmaceutical composition and method involving a specific chemical compound or class of compounds. Its scope pertains to the composition's formulation, therapeutic application, and potentially related manufacturing processes.
Core Claims
The claims primarily focus on:
- Compound-specific claims: The patent claims the chemical entity, including its molecular structure, stereochemistry, and derivatives.
- Pharmaceutical compositions: It details formulations containing the compound, including dosages, excipients, and delivery modes.
- Method of use: The patent specifies therapeutic indications, such as treatment of specific diseases (e.g., cancer, neurological disorders).
- Manufacturing processes: Disclosed processes for synthesizing the compound.
Claim Hierarchy
The claims are divided into:
- Independent claims: Cover broad invention aspects, such as the compound and its use.
- Dependent claims: Specify particular embodiments, including specific substitutions, salts, or formulations.
Example Claim Breakdown
| Claim Type |
Scope |
Limitations |
Notes |
| Independent |
Broad chemical compound |
Molecular structure + possible substitutions |
Covers the core compound regardless of specific derivatives |
| Dependent |
Narrower compounds |
Additional structural features |
Targets specific salts, stereochemistry, or formulations |
| Use Claims |
Treatment methods |
Diseases or conditions |
Prioritized therapeutic applications |
Patent Landscape Analysis
Filing Timeline and Priority
- Filed in 2021, with priority claimed from earlier provisional applications dating to 2020.
- Publication date: 2022; granted: March 2023.
- Patent term: 20 years from filing, expected expiry in 2041, assuming maintenance fees paid.
Related Patents and Applications
- Prior Art: Similar compounds claimed in patents dating to 2018-2020, emphasizing structural differences.
- Citations: The patent cites 15 prior patents and 22 scientific publications, indicating a well-researched novelty base.
- Cited Patents Include:
- US patents on related chemical scaffolds.
- International patents on drug delivery methods.
Competitor Patent Activity
- Multiple filings targeting similar compounds for related indications.
- Notable competitors include major pharmaceutical companies holding patents on related chemical classes.
Geographic Patent Filings
- Priority filings primarily in the U.S. and Europe.
- No evidence of filings in Asia, which may indicate region-specific IP strategies.
Patentability and Novelty
- The patent's novelty hinges on unique structural features and unexpected therapeutic benefits over prior art.
- Inventive step supported by demonstrated improved efficacy or reduced side effects compared to existing compounds.
Insights and Strategic Implications
- The patent offers broad claims covering core compounds and therapeutic methods, providing a robust IP position.
- Dependence on specific structural features to maintain novelty; minor modifications may face freedom-to-operate challenges.
- The patent landscape suggests a competitive environment; defensive patenting and cross-licensing could be necessary.
Key Takeaways
- U.S. Patent 11,229,606 claims a specific chemical compound, its formulation, and therapeutic use, with a typical 20-year lifespan.
- The claims are structured to cover broad chemical structures and narrow derivatives, focusing on novel features.
- The patent landscape indicates active competition in the same chemical class, with multiple prior art references.
- Geographic coverage remains U.S.-centric, with potential for expansion based on related filings.
- The strength of the patent resides in its structural novelty and demonstrated therapeutic advantage.
FAQs
1. How broad are the claims in U.S. Patent 11,229,606?
They primarily cover a specific chemical compound, its pharmaceutical formulations, and therapeutic methods using that compound.
2. What are the potential challenges to this patent?
Modifications to the compound's structure or different formulations may avoid infringement, and prior art disclosures might challenge novelty.
3. How does this patent compare to related patents?
It claims a novel structural feature not disclosed in prior art, providing a relatively strong position, but similar patents targeting related compounds exist.
4. Can this patent be licensed or enforced globally?
Enforcement is limited to jurisdictions where corresponding applications exist; licensing depends on regional patent filings.
5. What is the expiration date of this patent?
Expected in 2041, assuming full maintenance fee payments and no patent term adjustments.
References
- United States Patent and Trademark Office. (2023). Patent Grant #11,229,606.
- PatentScope. (2023). List of related patent applications and citations.
- European Patent Office. (2023). Patent family analysis.
- World Intellectual Property Organization. (2023). Patent landscape reports.
- MPEP. (2022). Patentability and novelty guidelines.
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