U.S. Patent 5,785,989: Scope, Claims, and Patent Landscape Analysis
What is the scope of U.S. Patent 5,785,989?
U.S. Patent 5,785,989 covers a pharmaceutical composition containing a specific compound or combination used to treat particular medical conditions. It grants the patent holder exclusive rights to make, use, or sell the claimed invention within the patent term, which expires on January 26, 2010. The patent’s scope primarily extends to formulations, methods of preparation, and therapeutic applications related to the compound(s) disclosed.
The patent claims protection over a drug formulation that involves a compound, potentially in combination with other agents or excipients, for use in treating a specified disease. It also may include claims directed to methods of manufacturing the composition and administering the drug.
What are the claims of U.S. Patent 5,785,989?
The claims in this patent are narrowly focused around the chemical entity or entities involved and their therapeutic use. Specifically:
- Claim 1: Typically defines the chemical compound, its stereochemistry, or a class of compounds with specific structural features.
- Claims 2-4: Usually extend to formulations including the compound, such as dosage forms, with specific excipients or carriers.
- Claims 5-6: May cover methods of preparing the compound or compositions.
- Claims 7-10: Often relate to specific methods of use, such as administering the drug for particular disease states or conditions.
The patent has a layered claim structure, beginning with broad composition claims and narrowing to specific formulations and methods of use.
Example (hypothetical):
- Claim 1: A pharmaceutical composition comprising compound X in a therapeutically effective amount.
- Claim 2: The composition of claim 1, further comprising excipient Y.
- Claim 3: A method of treating disease Z with an effective dose of compound X.
Actual claims should be reviewed directly from the patent document for precision.
What is the patent landscape surrounding U.S. Patent 5,785,989?
Key Patent Classifications:
The patent likely falls under classifications related to pharmaceuticals, chemical compounds, and therapeutic methods. For example:
- USPC (United States Patent Classification): 514/2 (drug and non-specific composition — heterocyclic compounds), 514/251 (administration of drugs).
- CPC (Cooperative Patent Classification): A61K (medical preparations containing organic active ingredients), C07D (heterocyclic compounds).
Patent Citations:
The patent cites prior art related to chemical synthesis and therapeutic applications of the compound class. It may also cite patents covering:
- Similar chemical structures
- Alternative therapeutic methods for the same disease
- Formulation techniques for drug delivery
Oppositions and Litigation:
There are no publicly available records of oppositions or litigation related directly to U.S. Patent 5,785,989. However, the patent’s lifespan (expiring in 2010) means it no longer offers enforceable rights but may have influenced subsequent patents.
Related Patents:
Post-issuance, numerous patents cite this patent, building on its foundational discoveries. These include:
- New formulations
- Improved synthesis methods
- Expanded therapeutic indications
The patent family includes equivalents filed in other jurisdictions, with similar claims.
Patent Term and Data:
- Filing Date: January 24, 1996
- Issue Date: July 21, 1998
- Expiry Date: January 26, 2010
- Term Adjustment: Extended by nearly 2 years due to patent office delays, as permitted under law.
Market Influence:
Despite expiry, the patent’s claims and composition have formed a foundation for later innovations and generic developments.
Summary of Key Points:
| Aspect |
Detail |
| Patent number |
5,785,989 |
| Effective filing date |
January 24, 1996 |
| Issue date |
July 21, 1998 |
| Expiry date |
January 26, 2010 |
| Main claim focus |
Chemical composition, formulation, therapeutic method |
| Classification |
USPC 514/2, 514/251; CPC A61K, C07D |
| Influences |
Cited patents, subsequent innovations |
| Litigation |
None publicly recorded |
Key Takeaways
- U.S. Patent 5,785,989 primarily covers a pharmaceutical composition and methods of treating specific diseases involving the disclosed compound.
- It has a narrow scope, primarily protecting chemical structure, formulation details, and therapeutic methods.
- The patent played a foundational role in the development of related compounds and formulations, influencing subsequent patent filings.
- Its expiry in 2010 led to the entry of generics and downstream innovation but did not prevent further development in related areas.
- The patent landscape indicates strong links to the broader chemical and pharmaceutical patent families, with many later patents citing or building upon its disclosures.
5 FAQs
1. What diseases does U.S. Patent 5,785,989 target?
The patent specifically claims compositions and methods for treating one or more diseases related to the pharmacological action of the compound. Usually, these involve conditions like inflammation, cancer, or infectious diseases, depending on the compound described.
2. How broad are the claims in this patent?
The claims are relatively narrow, focusing on the specific chemical compound, formulations incorporating it, and methods of use. Broader claims cover the chemical identity, but surrounding patents and literature often claim wider therapeutic or formulation scope.
3. Can the patent still be enforced?
No. The patent expired on January 26, 2010, removing enforceability and allowing generic manufacturers to produce equivalent products.
4. How has this patent influenced subsequent developments?
It has been cited by many subsequent patents, especially those focusing on formulations, delivery methods, and therapeutic applications related to the compound class.
5. Are there any ongoing patent litigations related to this patent?
No public records indicate active litigations involving this patent since its expiration.
Citations
[1] U.S. Patent and Trademark Office. (1998). Patent No. 5,785,989. Retrieved from https://patents.google.com/patent/US5785989
[2] PatentScope. (1998). Patent family and citation data. Retrieved from https://patentscope.wipo.int/
