Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11391772 | Signal transmission system | Frank Böttger, Erik S. Buck | 2022-07-19 |
| 5018518 | Gas work with sensing and alarm means | — | 1991-05-28 |
| 5018520 | Aeration or breathing apparatus | Heribert Rische | 1991-05-28 |
| 4703555 | Method of making a catalytic-burning sensor | — | 1987-11-03 |
| 4642296 | Method of measuring the magnitude of an environmental parameter, especially the concentration of an explosion-generating gas in a subterranean atmosphere | — | 1987-02-10 |
| 4569223 | Method of and apparatus for multiple detector measurement of an environmental parameter | — | 1986-02-11 |
| 4562723 | Method of and apparatus for the measurement of subterranean atmospheric parameters | — | 1986-01-07 |
| 4526028 | Process and device for indicating and evaluating environmental parameters | — | 1985-07-02 |