Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4954659 | 1,4-bis (dihydroxyphenyl) butane and analogs | Robert M. Parkhurst | 1990-09-04 |
| 4562298 | Optically active nordihydroguaiaretic acid and intermediates | Robert M. Parkhurst | 1985-12-31 |