Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5595787 | Chemical metallization of electrically non-conducting porous substrates | Otwin Imhof | 1997-01-21 |
| 5591053 | Current tapping vane and method for producing same | Otwin Imhof, Wilhelm Kitzhoefer | 1997-01-07 |