US 9890221
Cellulose ethers esterified with dicarboxylic acid
granted A61KA61K31/095A61K31/4166
Quick answer
US patent 9890221 (Cellulose ethers esterified with dicarboxylic acid) held by Regents of the University of Minnesota expires Mon Feb 08 2038 00:00:00 GMT+0000 (Coordinated Universal Time). Status: granted.
Key facts
- Applicant
- Regents of the University of Minnesota
- Grant date
- Tue Feb 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 08 2038 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 6
- CPC classes
- A61K, A61K31/095, A61K31/4166, A61K47/38, A61K9/146