Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7616050 | Power supply circuit for producing a reference current with a prescribable temperature dependence | — | 2009-11-10 |
| 7450119 | Method and system for developing image processing applications | — | 2008-11-11 |
| 5497073 | Constant current source having band-gap reference voltage source | Rolf Bo/ hme, Jens Wirth | 1996-03-05 |
| 5036842 | Respirator with blower support and regeneration of the breathing filter | Carl-Ernst van der Smissen, Hans-Joachim Walther | 1991-08-06 |
| 4828590 | Filter arrangement | Karl-Heinz Schirk | 1989-05-09 |
| 4821711 | Protective breathing device | Wolfgang Drews | 1989-04-18 |
| 4822572 | Chemical oxygen generator | Carl-Ernst van der Smissen, Rainer Ernst | 1989-04-18 |
| 4805608 | Breathing apparatus | Gunther Kolbe | 1989-02-21 |
| 4731197 | Potassium superoxide pellet | Carl-Ernst van der Smissen, Rainer Ernst, Bernhard Westrup | 1988-03-15 |
| 4665910 | Respirator having a respiratory regenerator with an area cooling portion | Ernst-Gunter Kolbe, Hasso Weinmann, Wolfgang Drews | 1987-05-19 |
| 4629335 | Indicator tube combined with a temperature gauge | — | 1986-12-16 |
| 4555252 | Electrostatic filter construction | — | 1985-11-26 |
| 4528160 | Gas dosimeter construction | Kurt Leichnitz, Karl-Heinz Pannwitz, Horst Rabenecker, Gunter Wolff | 1985-07-09 |
| 4467795 | Breathing device package | — | 1984-08-28 |
| 4392389 | Sampling tube having closing caps | Horst Rabenecker, Jurgen Behnke | 1983-07-12 |
| 4298010 | Breathing alcohol testing device | Horst Rabenecker | 1981-11-03 |
| 4290792 | Filter construction | Karl-Heinz Schirk, Detlef Reinhold | 1981-09-22 |
| 4287750 | Device for checking the functioning of gas measuring apparatus | Horst Rabenecker | 1981-09-08 |