Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4943365 | Method for the production of modified pitches and the further application | Winfried Boenigk, Jurgen Stadelhofer | 1990-07-24 |
| 4429172 | Process for the production of modified pitches and low boiling aromatics and olefins and use of said pitches | Robert Zellerhoff, Franz Kajetanczyk | 1984-01-31 |
| 4414192 | Method of producing a highly reactive pitch fraction and its usage | Jurgen Palm, Herbert Glaser, Gerd Collin, Rolf Marrett | 1983-11-08 |
| 4379133 | Process for anisotropic carbon production | Gerd-Peter Blumer, Gerd Collin, Herbert Glaser, Rolf Marrett | 1983-04-05 |