Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384283 | Method and an apparatus for monitoring the subjection of individual people to harmful gases | Eckard Drope, Karl P. Jansky, Wilhelm Pross | 1983-05-17 |
| 4268224 | Method of and means for conveying and measuring gases for gas analysis operations | Klaus Siemer | 1981-05-19 |
| 4267030 | Apparatus for checking gas analysis devices | Wolf-Jurgen Becker, Jacques Deprez, Eckard Drope, Karl-Heinz Kaufmann, Kurt Schreckling | 1981-05-12 |