Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073947 | Hearing device for a protective helmet | Hans Reddemann, Balz Knabenhans | 1991-12-17 |
| 5027437 | Suit for the support of a person's body in respect to acceleration forces | Hans Reddemann, Robin C. Huttenbach | 1991-07-02 |
| 4972831 | Gas ratio controlling device for anesthetic appliances | Eckhard Schmudde, Carl F. Wallroth | 1990-11-27 |
| 4903346 | Multi-part protective helmet | Hans Reddemann | 1990-02-27 |
| 4838261 | Gas metering arrangement | — | 1989-06-13 |
| 4651730 | Gas metering device for medical apparatus | Carl F. Wallroth | 1987-03-24 |