Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055421 | Method for the plasma deposition of hydrogenated, amorphous carbon using predetermined retention times of gaseous hydrocarbons | Siegfried Birkle, Johann Kammermaier, Rolf Schulte, Gerhard Rittmayer | 1991-10-08 |
| 5039358 | Amorphous, hydrogenated carbon electroactive passivation layer | Siegfried Birkle, Johann Kammermaier, Gerhard Schmidt | 1991-08-13 |
| 4872759 | Sensor for gases or ions | Eva-M. Stich-Baumeister, Karl-Otto Dohnke | 1989-10-10 |