Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873273 | Epoxide coating composition | John L. H. Allan, Jeffery J. Boettcher, Leon Katz | 1989-10-10 |
| 4849229 | Controlled release solid drug dosage forms based on mixtures of water soluble nonionic cellulose ethers and anionic surfactants | Joseph M. Schor | 1989-07-18 |
| 4795327 | Controlled release solid drug dosage forms based on mixtures of water soluble nonionic cellulose ethers and anionic surfactants | Joseph M. Schor | 1989-01-03 |