Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731197 | Potassium superoxide pellet | Wolfgang Eckstein, Carl-Ernst van der Smissen, Rainer Ernst | 1988-03-15 |
| 4613575 | Indicator for determining organic isocyanates on a carrier | Joachim Marcoll | 1986-09-23 |
| 4543336 | Indicator for determining sulfur dioxide | — | 1985-09-24 |
| 4539181 | Gas monitor having an indicator band and a foretube | — | 1985-09-03 |