Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4780208 | Process for purification of effluent | Botho Bohnke | 1988-10-25 |
| 4568462 | Method of treating sewage in sewage treatment installations having an adsorption stage | Botho Bohnke | 1986-02-04 |
| 4487697 | Biological waste-water-treatment method | Botho B/o/ hnke | 1984-12-11 |