Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5969199 | Process for the addition of HF to halogenated alkenes | Gunter Siegemund | 1999-10-19 |
| 5912392 | Process for the preparation of 2H-heptafluoropropane | Helmut Vollmueller, Guenter Siegemund | 1999-06-15 |
| 5847245 | Process for the addition of HF to halogenated alkenes | Gunter Siegemund | 1998-12-08 |
| 5728884 | Process for the work-up of complex amine hydrofluroides | Ulrich Hahn, Gunter Siegemund | 1998-03-17 |
| 5684193 | Process for the preparation of perfluoropropionyl fluoride | Gunter Siegemund | 1997-11-04 |
| 5399795 | Process for the preparation of 2-H-heptafluoropropane | Gunter Siegemund | 1995-03-21 |
| 4847372 | Process for the single-stage preparation of glycosyl fluorides | Hans-Matthias Deger, Merten Schlingmann | 1989-07-11 |
| 4766207 | Process for the preparation of water-soluble polysaccharides, the saccharides thus obtainable, and their use | Hans-Matthias Deger, Rudiger Erckel, Wolfram Fritsche-Lang, Gert-Wolfhard von Rymon Lipinski, Merten Schlingmann | 1988-08-23 |
| 4589924 | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Rudiger Erckel, Rolf Woernle, Theodor Riehm | 1986-05-20 |
| 4556431 | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Rudiger Erckel, Rolf Woernle, Theodor Riehm | 1985-12-03 |
| 4556432 | Process for hydrolyzing cellulose-containing material with gaseous hydrogen fluoride | Rudiger Erckel, Rolf Woernle, Theodor Riehm | 1985-12-03 |
| 4260561 | Process for the preparation of carbonyl difluorides | — | 1981-04-07 |