Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225404 | Perfluoroolefin and perfluoroparaffin mixture and process for making same | Gunter Engler, Armin Ferse, Harald Grimm, Udo Gross, Dietmar Handte +4 more | 1980-09-30 |