US 6395253
Microspheres containing condensed polyanionic bioactive agents and methods for their production
expired A61KA61K9/5153A61K9/5192
Quick answer
US patent 6395253 (Microspheres containing condensed polyanionic bioactive agents and methods for their production) held by THE REGENTS OF THE UNIVERSITY OF MICHIGAN expires Mon May 23 2022 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- THE REGENTS OF THE UNIVERSITY OF MICHIGAN
- Grant date
- Tue May 28 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon May 23 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 18
- CPC classes
- A61K, A61K9/5153, A61K9/5192