Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388281 | Noxious-component removal from flue gas and compositions useful therefor | Heinz Gresch, Heinrich Igelbuscher, Heribert Dewert | 1983-06-14 |
| 4366132 | Method of and apparatus for the chemisorptive scrubbing of waste gases | Heinz Gresch, Heinrich Igelbuscher, Heribert Dewert, Berthold Dzikowski, Hans-Jurgen Twiehaus | 1982-12-28 |
| 4335708 | Solar collector | Heinz Gresch, Heinrich Igelbuscher | 1982-06-22 |
| 4305168 | Hospital bed | Heinz Gresch | 1981-12-15 |
| 4297117 | Respiratory device for catastrophic fires and/or smog weather conditions | Heinz Gresch, Heinrich Igelbuscher | 1981-10-27 |
| 4295868 | Filter for cleaning hot gases | Heinz Gresch, Heinrich Igelbuscher, Kurt Hubner, Ekkehard Weber | 1981-10-20 |
| 4289509 | Dust aspirating arrangement | — | 1981-09-15 |
| 4270326 | Fireproof door for hotels, skyscrapers and the like | Heinz Gresch, Heinrich Igelbuscher | 1981-06-02 |
| 4257191 | Moisture reservoir for fertile soils for plants | Heinz Gresch, Heinrich Igelbuscher | 1981-03-24 |
| 4255195 | Compositions containing silicon dioxide | Heinz Gresch, Heinrich Igelbuscher | 1981-03-10 |
| 4222993 | Removal of noxious contaminants from gas | Heinz Gresch, Heinrich Igelbuscher | 1980-09-16 |
| 4206186 | Refuse pyrolysis | Heinz Gresch, Heinrich Igelbuscher | 1980-06-03 |
| 4201751 | Gas purification | Heinz Gresch, Heinrich Igelbuscher | 1980-05-06 |