Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4284410 | Process for the pretreatment of cellulose fibers to be printed according to the thermotransfer printing method | Walter Dursch | 1981-08-18 |
| 4273552 | Process for the pretreatment of cellulose fibers to be printed according to the thermotransfer printing method | — | 1981-06-16 |
| 4250306 | Process and equipment for preparing swellable cross-linked carboxyalkylcelluloses from natural cellulose or cellulose hydrate and use thereof | Helmut Lask, Arno Holst, Hans Sommer | 1981-02-10 |
| 4187342 | Bonded fiber web, which is capable of absorbing water vapor comprising a swellable cellulose ether in fiber form | Arno Holst, Helmut Lask, Wilhelm Fischer | 1980-02-05 |