Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922008 | Process for the production of 4-nitrotoluene-2-sulfonic acid | Gottfried Seifert, Sebastian Staubli, Josef H. Wieland, Willy Regenass, John G. Lee +1 more | 1990-05-01 |