Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5531802 | Suction device with a filter insert in the suction line | Georg Schlor, Hans-Karsten Reimers, Dietrich Vosberg | 1996-07-02 |
| 5119808 | Respirator with a protective covering of coated fabric | Wolfgang Marquardt, Rudolf Greiff | 1992-06-09 |
| 5040530 | Sprayable composition using acetone solvent | Christoph Bauer, Rudolf Greiff, Wolfgang Marquardt | 1991-08-20 |
| 5005700 | Gas tight packaging with a safety device | Christoph Bauer, Harald M. Friedrichs, Roderich Thometschek | 1991-04-09 |
| 4840171 | Oxygen supply unit having an oxygen generator | Frank Joseph Schulz, Siegfried Preininger | 1989-06-20 |
| 4836197 | Folded protective hood having an oxygen mask | Frank Joseph Schulz, Wolfgang Marqardt | 1989-06-06 |
| 4807614 | Protective hood | Carl-Ernst van der Smissen | 1989-02-28 |
| 4699173 | Mixing and proportioning device for flowing media | — | 1987-10-13 |
| 4219038 | Gas mixing device for breath-protecting, diving, medical and laboratory techniques | Wolfgang Lubitzsch, Manfred Schinkmann | 1980-08-26 |