Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849229 | Controlled release solid drug dosage forms based on mixtures of water soluble nonionic cellulose ethers and anionic surfactants | Norman G. Gaylord | 1989-07-18 |
| 4795327 | Controlled release solid drug dosage forms based on mixtures of water soluble nonionic cellulose ethers and anionic surfactants | Norman G. Gaylord | 1989-01-03 |