Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350874 | Process for preparing diesters of naphthalenedicarboxylic acids | Juergen K. Holzhauer, Gregory P. Hussmann, David L. Sikkenga | 1994-09-27 |
| 5292934 | Method for preparing aromatic carboxylic acids | David L. Sikkenga, George E. Kuhlmann, Martin A. Zeitlin, Stephen V. Hoover | 1994-03-08 |