Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868329 | Accelerated preparation of carboxylic acid esters | Thomas M. Powanda, Robert H. Imes | 1989-09-19 |
| 4859792 | Accelerated preparation of esters | Thomas M. Powanda, Robert H. Imes | 1989-08-22 |
| 4816107 | Acetal polymer bonded articles and method of making same | Kurt F. Wissbrun | 1989-03-28 |