Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012504 | Sustained release of guaifenesin combination drugs | Ralph W. Blume, Donald Jeffrey Keyser | 2011-09-06 |
| 7985420 | Sustained release of guaifenesin combination drugs | Ralph W. Blume, Donald Jeffrey Keyser | 2011-07-26 |
| 7985421 | Sustained release formulations of guaifenesin and additional drug ingredients | Ralph W. Blume, Donald Jeffrey Keyser | 2011-07-26 |