Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436172 | Method for separating condensable substances from gases or gas mixtures | — | 2002-08-20 |
| 4954257 | Biological purification loop device and method having deflector plate within guide pipe | Alfons Vogelpohl | 1990-09-04 |
| 4940546 | Installation for aerobic biological purification of pollutant-containing water | Alfons Vogelpohl | 1990-07-10 |
| 4897236 | Method and apparatus for the continuous manufacture of rubber or polymer-based mixtures containing additives | Manfred Dienst | 1990-01-30 |