Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868329 | Accelerated preparation of carboxylic acid esters | Thomas M. Powanda, George L. Collins | 1989-09-19 |
| 4859792 | Accelerated preparation of esters | Thomas M. Powanda, George L. Collins | 1989-08-22 |