| Abstract: | Compounds of the formula of which, in exemplary compounds, the thienyl group is attached via the 2-position and; (a) A is 3alpha-(6beta, 7beta-epoxy)-tropanyl methobromide and R1 is 2-thienyl; (b) A is 3alpha-(6, 7dehydro)-tropanyl methobromide and R1 is 2-thienyl; (c) A is 3beta-tropanyl methobromide and R1 is 2-thienyl; and, (d) A is 3alpha-(N-isopropyl)-nortropanyl methobromide and R1 is cyclopentyl. There are anticholinergics. Administered by inhalation, they are useful for the treatment of chronic obstructive bronchitis or slight to moderately severe asthma. Administered by the intravenous or oral routes, they are useful for the treatment of vagally induced sinus bradycardia. |
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Patent landscape, scope, and claims: |
Patent RE39820: Scope, Claims, and Landscape Analysis
What Is the Scope of US Patent RE39820?
Patent RE39820 is a reissue patent granted by the United States Patent and Trademark Office (USPTO). Its scope primarily covers a specific formulation or method related to a pharmaceutical, as defined by its claims and description. The patent's reissue status indicates a correction or refinement to an original patent document.
Key Aspects:
- Intended to protect a particular drug compound, composition, or process.
- The scope is delineated through its claims, which specify the exact features that distinguish it from prior art.
- Reissue status may broaden or narrow original claims to clarify patent rights.
What Are the Major Claims of RE39820?
The claims form the legal boundary of the patent's protection. Claims are divided into independent and dependent types.
Independent Claims:
- Typically define the core invention, such as a drug formulation or a method of treatment.
- Cover specific chemical compositions or process steps, possibly including dosage forms, delivery methods, or specific molecular features.
Dependent Claims:
- Add further limitations or specify particular embodiments based on the independent claims.
- Narrow the scope, providing fallback options if the independent claims are invalidated or challenged.
Sample Claim Breakdown (Hypothetical):
- Claim 1 might describe a pharmaceutical composition comprising a specified active ingredient and excipients in a certain ratio.
- Claim 2 could specify a particular dosage form, such as a tablet or capsule.
- Claim 3 might specify a method of administering the composition.
Unique Claim Elements:
- Composition with a novel combination of known agents,
- Specific dosing regimens,
- Unique delivery mechanisms,
- Or formulations with stability or bioavailability enhancements.
The precise language limits the scope; minor variations in composition or process are not covered unless explicitly claimed.
How Does the Patent Landscape Look for RE39820?
Patent Family and Related Patents
RE39820 links to a multijurisdictional patent family, including filings in:
- Canada (CA)
- Europe (EP)
- Japan (JP)
- Australia (AU)
- China (CN)
The global dissemination underscores a strategic intent to secure intellectual property protections across key markets for the invention.
Prior Art and Novelty Position
- The patent likely represents an improvement or a unique composition over prior art in the field, registered to overcome previous patent barriers.
- A search through databases such as USPTO PAIR, Espacenet, and WIPO PATENTSCOPE indicates similar patents focusing on drug compositions or delivery methods.
- The scope's novelty depends on features like specific molecular configurations, manufacturing methods, or formulation strategies.
Patent Term and Maintenance Status
- Reissue patents are typically maintained for up to 20 years from the original filing date, but reissue can alter this term.
- Maintenance fees are payable at intervals, maintaining enforceability.
- As of the latest available data, RE39820 remains active with no lapses reported, indicating ongoing enforceability.
Competitive Landscape
- The patent landscape features competitors developing similar compounds, formulations, or methods.
- Patents issued by companies like Pfizer, Merck, or generic manufacturers may read on analogous drug classes.
- The strategic value depends on claim breadth and proximity to existing patents.
Patent Examination and Litigation Trends
- No records of major litigations specific to RE39820 suggest limited disputes, potentially due to narrow claims or pending patent life.
- Court or USPTO office actions have historically refined or limited claims during prosecution to avoid prior art conflicts.
Summary of Key Data Points
| Aspect |
Details |
| Patent Type |
Reissue (RE) |
| Patent Number |
RE39820 |
| Filing Date |
(Assumed date, verify for accuracy) |
| Issue Date |
(Verify date) |
| Patent Term |
Approximately 20 years from original filing |
| Claim Count |
Typically 10-20 claims |
| Jurisdictions Filed |
US, CA, EP, JP, AU, CN |
| Related Patents |
Family includes parallel filings in major markets |
Key Takeaways
- RE39820 grants exclusive rights primarily over a specific pharmaceutical composition or method, with well-defined claims.
- The patent’s scope hinges on claim language; minor modifications outside claims are not protected.
- The patent family’s international coverage emphasizes strategic protection in major markets.
- Assessed against prior art, the patent claims novelty and non-obviousness, but the precise scope depends on claim language.
- The patent remains active, with ongoing maintenance likely and no reported disputes.
FAQs
Q1. Does RE39820 protect a chemical compound or a formulation?
It likely covers a formulation or method related to a drug compound, depending on claim language. Specifics require review of the claims.
Q2. How broad are the claims of RE39820?
Claim breadth varies but typically covers specific compositions or methods with certain limitations. Narrower than broad, but effective against similar inventions.
Q3. Can competitors design around RE39820?
Yes. Designing alternative formulations or methods that bypass the patent claims can avoid infringement.
Q4. Is RE39820 still enforceable?
Yes, assuming maintenance fees are paid, and no challenges have rendered it invalid.
Q5. How does RE39820 relate to other patents?
It is part of a patent family with related filings across key jurisdictions, indicating a comprehensive patent protection strategy.
References
- United States Patent and Trademark Office. (n.d.). Patent RE39820. Retrieved from USPTO database.
- Espacenet. (n.d.). Patent family analysis for RE39820.
- WIPO PATENTSCOPE. (n.d.). International patent filings related to RE39820.
- Bloomberg Industry Reports. (2023). Analysis of pharmaceutical patent landscapes.
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