Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651630 | Thermally insulating pistons for internal combustion engines and method for the manufacture thereof | Edwin Erben | 1987-03-24 |
| 4525389 | Method for conveying and treating a gas employed for the coating of workpieces by means of a chemical, heterogeneous vapor-phase reaction | Bruno Stemmler | 1985-06-25 |
| 4478648 | Method of producing protective oxide layers | August Muhlratzer, Bruno Stemmler | 1984-10-23 |
| 4475958 | Method for the manufacture of deformation resistant oxidic protective layers | August Muhlratzer, Bruno Stemmler | 1984-10-09 |