Patent intelligence · US
US 6521257
Gelled compositions
Gelled compositions
Patent details — US 6521257
- Jurisdiction
- US
- Status
- expired
- Grant date
- Feb 18, 2003
- Expiration
- Feb 13, 2023
- Applicant
- Ohkura Pharmaceutical Co., Ltd.
- Claims
- 52
- CPC classes
- A61K, A61K9/0056, A61K9/0095
Quick answer
US 6521257 (Gelled compositions) is held by Ohkura Pharmaceutical Co., Ltd.. Status: expired. Granted Feb 18, 2003. Expires Feb 13, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Ohkura Pharmaceutical Co., Ltd.
- Grant date
- Expiration
- Claims
- 52
- CPC classes
- A61K, A61K9/0056, A61K9/0095
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Frequently asked questions
What is US patent 6521257?
US 6521257 (Gelled compositions) is held by Ohkura Pharmaceutical Co., Ltd.. Status: expired. Granted Feb 18, 2003. Expires Feb 13, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6521257?
Ohkura Pharmaceutical Co., Ltd. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 132 pharmaceutical patents for this assignee.
When does US 6521257 expire?
Our index shows an expiration date of Feb 13, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.