Patent intelligence · US
US 6528661
Hydrolysis of [R(R*,R*)]-2-(4-fluorophenyl)-&bgr;,&dgr;-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino) carbonyl]-1H-pyrrole-1-heptanoic acid esters with calcium hydroxide
Hydrolysis of [R(R*,R*)]-2-(4-fluorophenyl)-&bgr;,&dgr;-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino) carbonyl]-1H-pyrrole-1-heptano…
Patent details — US 6528661
- Jurisdiction
- US
- Status
- expired
- Grant date
- Mar 4, 2003
- Expiration
- Feb 27, 2023
- Applicant
- TEVA PHARMACEUTICAL INDUSTRIES, LTD.
- Claims
- 22
- CPC classes
- A61K, A61K9/282, A61K9/5021
Quick answer
US 6528661 (Hydrolysis of [R(R*,R*)]-2-(4-fluorophenyl)-&bgr;,&dgr;-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino) carbonyl]-1H-pyrrole-1-heptanoic acid esters with calcium hydroxide) is held by TEVA PHARMACEUTICAL INDUSTRIES, LTD.. Status: expired. Granted Mar 4, 2003. Expires Feb 27, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- TEVA PHARMACEUTICAL INDUSTRIES, LTD.
- Grant date
- Expiration
- Claims
- 22
- CPC classes
- A61K, A61K9/282, A61K9/5021
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Frequently asked questions
What is US patent 6528661?
US 6528661 (Hydrolysis of [R(R*,R*)]-2-(4-fluorophenyl)-&bgr;,&dgr;-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino) carbonyl]-1H-pyrrole-1-heptanoic acid esters with calcium hydroxide) is held by TEVA PHARMACEUTICAL INDUSTRIES, LTD.. Status: expired. Granted Mar 4, 2003. Expires Feb 27, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6528661?
TEVA PHARMACEUTICAL INDUSTRIES, LTD. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 454 pharmaceutical patents for this assignee.
When does US 6528661 expire?
Our index shows an expiration date of Feb 27, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.