Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4940567 | Apparatus for catalytically reducing noxious substances in flue gas | Martin Benzel | 1990-07-10 |
| 4810476 | Process and apparatus for catalytically reducing noxious substances in flue gas | Martin Benzel | 1989-03-07 |
| 4756891 | Method for pre-heating combustion air and for catalytically reducing noxious substances in flue gas | Martin Benzel | 1988-07-12 |
| 4725290 | Method for the purification of air or gas streams by a multi-path adsorption principle and moving-bed filtering apparatus for performing the method | Jurgen Wilhelm, Hans-Georg Dillmann | 1988-02-16 |
| 4263028 | Filter system for purifying gas or air streams | Jurgen Wilhelm | 1981-04-21 |