US 6710125
Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)
expired A61KA61K31/7088A61K47/58
Quick answer
US patent 6710125 (Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)) held by Nektar Therapeutics AL, Corporation expires Mon Mar 18 2024 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Nektar Therapeutics AL, Corporation
- Grant date
- Tue Mar 23 2004 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Mar 18 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 13
- CPC classes
- A61K, A61K31/7088, A61K47/58, A61K47/60, A61K47/6901