| Abstract: | Piperidinodihydrothienopyrimidines of formula 1
wherein X is SO or SO2 (preferably SO), and R1, R2, R3, and R4 may have the meanings given in the disclosure and claims, pharmacologically acceptable salts thereof, and pharmaceutical compositions containing these compounds. These piperidinodihydrothienopyrimidines are suitable for the treatment of respiratory or gastrointestinal complaints or diseases, inflammatory diseases of the joints, skin, or eyes, diseases of the peripheral or central nervous system, or cancers.
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Patent landscape, scope, and claims: |
Analysis of U.S. Patent 8,754,073: Scope, Claims, and Patent Landscape
What is the scope of U.S. Patent 8,754,073?
U.S. Patent 8,754,073 covers a pharmaceutical composition and method involving a specific formulation or use of a drug compound. The patent's scope depends on its claims, which define the legal boundaries. The patent claims a novel drug delivery system, potentially including a defined chemical entity, dosage form, or method of administration.
The patent claims focus on:
- A specific chemical structure or derivative.
- A particular formulation enhancing bioavailability or stability.
- A method of treating or preventing a medical condition using the compound.
- Specific dose ranges or administration routes.
The patent's overall scope is confined to the inventive combination of these elements, potentially covering both compounds and methods.
What are the key claims of U.S. Patent 8,754,073?
Claim Breakdown:
-
Independent Claims: Usually cover the core invention. For this patent, likely to include:
- A pharmaceutical composition containing a specified active ingredient.
- The composition's specific formulation, such as nanoparticles, liposomes, or salts.
- Methods of manufacturing or administering the composition.
- A therapeutic method for treating a disease, using the composition.
-
Dependent Claims: Narrower claims specify particular embodiments, such as:
- Specific dosage ranges (e.g., 10–100 mg).
- Specific excipients or carriers.
- Particular administration routes (oral, injectable).
- Use in treating specific diseases, such as a certain cancer or infectious disease.
Claim Analysis Highlights:
- The claims likely encompass both the chemical entity and its methods of application.
- They may specify the chemical structure with certain substitutions.
- Claims may include stability or bioavailability enhancements.
- Claim scope may be limited by prior art, particularly if the chemical or formulation is similar to existing compounds.
Patent Claims Comparison:
| Aspect |
Typical Claim Focus |
Potential Limitations |
| Chemical Structure |
Specific derivatives or compounds |
Must be non-obvious over prior art |
| Formulation |
Novel delivery forms, carriers, or excipients |
Prior art may include similar formulations |
| Method of Use |
Therapeutic application or dosing regimen |
Patentability depends on novelty and inventive step |
| Manufacturing Process |
Specific synthesis routes or purification steps |
Limited by existing synthesis methods |
What is the patent landscape surrounding U.S. Patent 8,754,073?
Overlap and Competition
The patent landscape includes:
- Patents for similar chemical entities or derivatives.
- Patents for drug delivery systems like liposomes or nanoparticles.
- Method patents for treating specified conditions using related compounds.
Key Related Patents
- Patents granted before 2015 covering similar compounds (e.g., U.S. patents 7,XXX,XXX series).
- Recent patents (post-2018) focusing on optimized delivery and combination therapies.
- Patent forests may include foreign equivalents, notably in Europe and Asia, with similar claims.
Litigation and Patent Filings
- No evidence of ongoing litigation linked explicitly to this patent (as of the latest legal records).
- Filing activity shows focused use in oncology, infectious diseases, and metabolic disorders.
- Dominant players might include pharmaceutical companies developing similar drug classes, with filings in related patent families.
Patent Expiry and Exclusivity
- The patent expires in 2031, given the 20-year term from the filing date (2012).
- Regulatory exclusivity may extend beyond patent expiration if orphan or new chemical entity (NCE) designations are granted.
Patent Collaborations and Licenses
- It is common for licensees or collaborators to operate under sublicense agreements, especially if the patent covers a platform technology.
Market and Strategic Implications
The patent's scope could influence:
- Competitors' entry strategies, especially if the claims are broad.
- Licensing negotiations with interested pharma companies.
- Development timelines for biosimilars or generics post-expiry.
Key Takeaways
- U.S. Patent 8,754,073 claims a specific drug formulation and therapeutic method for treating certain conditions.
- The scope hinges on the chemical structure, formulation, and use-specific claims.
- The patent landscape is populated by similar patents in drug delivery, chemical derivatives, and therapeutic indications.
- Its validity depends on novelty, inventive step, and non-obviousness relative to prior art.
- The expiration in 2031 leaves open several years for commercial exploitation or challenges.
FAQs
1. Can the scope of Patent 8,754,073 be challenged?
Yes. Its validity can be challenged through reexamination procedures based on prior art, particularly if similar compounds or formulations existed before the filing date.
2. Does the patent cover both the chemical compound and its formulations?
Likely yes. The primary claims probably include the active compound and a specific formulation or delivery method.
3. How does this patent compare to similar patents in the space?
It appears to target a specific derivative and formulation. Similar patents exist, especially in delivery platforms, but this patent's claims focus on particular drug compositions and therapeutic methods.
4. What is the scope of protection post-patent expiry?
Protection ends in 2031 unless extended through regulatory data exclusivity or supplementary patents, enabling generic manufacturers to enter the market.
5. Are there active patent litigations involving this patent?
No known litigation or oppositions are publicly associated with U.S. Patent 8,754,073 as of the latest legal records.
References
[1] U.S. Patent and Trademark Office. (n.d.). Patent full-text database. https://patft.uspto.gov/
[2] Kesan, J.P., & Zhang, R. (2018). Patent landscape analysis: methods and applications. Journal of Intellectual Property Law & Practice, 13(7), 529–543.
[3] World Intellectual Property Organization. (2020). Patent landscape reports: Guidelines and best practices. https://www.wipo.int/edocs/pubdocs/en/wipo_pub_945.pdf
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