Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251257 | Method and system for transmitting quality criteria of a synchronous network hierarchy | Wolfgang Becker | 2007-07-31 |
| 6744983 | Optical switching matrix | — | 2004-06-01 |
| 5765549 | Respirator | Gunther Kolbe, Werner Jumpertz | 1998-06-16 |
| 5669375 | Breathing mask | Klaus-Dieter Dahrendorf, Joachim Schlobohm, Gunter Von Kopp, Joachim W. Siegel | 1997-09-23 |
| 5450844 | Locking device for the container of a gas mask and breathing equipment | Gunther Kolbe, Stephan Melzer, Hasso Weinmann | 1995-09-19 |
| D352008 | Housing for an adjustable timer | — | 1994-11-01 |
| D347064 | Housing for an oxygen respirator | — | 1994-05-17 |
| 5291881 | Air cleaning cartridge for a gas mask and breathing equipment with an insert | Gunther Kolbe, Stephan Melzer, Hasso Weinmann | 1994-03-08 |
| 5042471 | Respirator with several regeneration cartridges and breather bags | Ernst-Gunther Kolbe, Hasso Weinmann | 1991-08-27 |
| 5038772 | Closed-cycle breathing equipment | Ernst-Gunther Kolbe, Norbert Kollenbrandt, Hasso Weinmann, Karsten Vogeler, Hans Fiedler | 1991-08-13 |
| 4821711 | Protective breathing device | Wolfgang Eckstein | 1989-04-18 |
| 4766893 | Emergency oxygen supply unit with a respirator | — | 1988-08-30 |
| 4665910 | Respirator having a respiratory regenerator with an area cooling portion | Ernst-Gunter Kolbe, Hasso Weinmann, Wolfgang Eckstein | 1987-05-19 |
| D289207 | Case for a breathing mask or breathing apparatus unit | — | 1987-04-07 |
| 4465067 | Oxygen insufflation device | Jochim Koch | 1984-08-14 |