Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296177 | Flexible graphite sheet, material or layer containing metal molybdate | Alfred Hirschvogel | 1981-10-20 |
| 4216266 | Flexible graphite sheet material treated with an alkali metal salt containing at least one of the elements chromium, molybdenum and tungsten | Alfred Hirschvogel | 1980-08-05 |