Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4647670 | Trans-3,4-dihydro-2,2-dimethyl-6-nitro-4-(2-oxo-pyrrolidinyl)2H-1-ben zopyran-3-ol | John M. Evans, Robin Buckingham | 1987-03-03 | $11,000 |
| 4644070 | Chroman-3-ol compounds | John M. Evans, Robin Buckingham | 1987-02-17 | $42,000 |
| 4640928 | 4-(2-hydroxy-1-pyrrolidinyl and 1-piperidinyl)-2H-benzo[b]-pyran-3-ol derivatives | — | 1987-02-03 | $38,000 |
| 4610992 | Trans-4-(2-thiaoxo-1-pyrrolidinyl or piperidinyl)-2H-benzo[b]pyran-3-ol derivatives useful in treating hypertension | John M. Evans, Robin Buckingham | 1986-09-09 | $41,000 |
| 4555509 | Anti-hypertensive benzo[b]pyran-3-ols | John M. Evans, Robin Buckingham | 1985-11-26 | $13,000 |
| 4542149 | 4-Amino-benzo[b]pyran-3-ol derivatives | John M. Evans, Robin Buckingham | 1985-09-17 | $21,000 |
| 4446113 | Benzopyrans | John M. Evans, Robin Buckingham | 1984-05-01 | $22,000 |