Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11585783 | Gas sensor and gas-measuring device for detecting volatile organic compounds | Stefan Lehmann | 2023-02-21 |
| 10942145 | Gas sensor and gas-measuring device for detecting volatile organic compounds | Stefan Lehmann | 2021-03-09 |
| 10688269 | Gas sensor for anesthetic gases and its use | Ernst-Günter Scharmer, Livio Fornasiero, Christoph Wolfgang Marquardt, Günter Steppan | 2020-06-23 |
| 10191023 | Gas-measuring device | Björn Raupers, Stefan Lehmann | 2019-01-29 |
| 8604422 | Identification of analytes by an ion mobility spectrometer with formation of dimer analytes | Frank Gunzer | 2013-12-10 |
| 7417224 | Ion mobility spectrometer with parallel drift gas and ion carrier gas flows | Stefan Zimmermann | 2008-08-26 |
| 7244931 | Ion mobility spectrometer with parallel running drift gas and ion carrier gas flows | Stefan Zimmermann | 2007-07-17 |
| 6376254 | Biomimetic reagent system and its use | Hans-Jürgen Duchstein, Susanne Hoffmann | 2002-04-23 |
| 6348355 | Testing element for the colorimetric determination of oxidizable components in gas mixtures | Ralf Miethchen, Alexej Miller | 2002-02-19 |
| 6162281 | Device and process for displaying the exhaustion of a gas filter | Klaus Ammann, Michael Dietrich | 2000-12-19 |
| 6040777 | Device and process for indicating the exhaustion of a filter | Klaus Ammann | 2000-03-21 |
| 5849591 | Method of determining the component of a gas in a gas sample | Ingo Kaneblei, Matthias Martens, Andreas Mohrmann, Ingo Pooch | 1998-12-15 |
| 5464588 | Arrangement for colorimetrically detecting a gaseous and/or vaporous component in a gas mixture | Rainer Bommer | 1995-11-07 |
| 5297544 | Respirator with inner half mask and pollutant indicator | Wolfgang May, Carl-Ernst van der Smissen, Gerhold Muhmel | 1994-03-29 |
| 5069879 | Automated apparatus for detecting gaseous components in air with a colorimetric testing tube | Kurt Leichnitz, Wolfgang May, Wolfgang Evers | 1991-12-03 |
| 5000920 | Device for the heat treatment of gaseous test samples | Johannes Heckmann | 1991-03-19 |
| 4971762 | Detector device for determining the components of a fluid sample and a method of producing the same | — | 1990-11-20 |
| 4917863 | Colorimetric gas measuring device for chlorosilanes | — | 1990-04-17 |
| 4844867 | Colorimetric detector | — | 1989-07-04 |