Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501668 | Process for the elimination of hydrogen sulfide or iron sulfide from an aqueous system | Wolfgang Merk | 1985-02-26 |
| 4479820 | Use of polycondensation products from acrolein and formaldehyde as biocide | Wolfgang Merk | 1984-10-30 |