Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845274 | Oxidation of polyalkylaromatics | Wayne P. Schammel | 1989-07-04 |
| 4845275 | Trimellitic acid process | Wayne P. Schammel | 1989-07-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845274 | Oxidation of polyalkylaromatics | Wayne P. Schammel | 1989-07-04 |
| 4845275 | Trimellitic acid process | Wayne P. Schammel | 1989-07-04 |