Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274749 | High-temperature resistant sulfonated aromatic polyether ketone cation exchangers and sulfonated poly (phenylene sulfide) cation exchangers as catalysts at reaction temperature above 150.degree. C | Werner Sievers, Ulrich Daiminger, Harald Bönsel, Wolfgang Bauer | 2001-08-14 |
| 6140598 | Method for separating polymer-salt mixtures | Klaus Schonert, Reinhard Wagener | 2000-10-31 |
| 5888465 | Process for separating hydrogen halides from gases containing sulphur dioxide | Ulrich Rappold, Wolfgang Schick, Jorg Schmid, Heinrich Merten, Matthias Schubert +1 more | 1999-03-30 |
| 5755980 | Process for eliminating adsorbable organic halogen compounds from wastewater | Heribert Tetzlaff | 1998-05-26 |
| 5464876 | Process for the recovery of valuable materials during the work-up of polyvinyl chloride | Gunther Lyding, Maria Pille, Helmold von Plessen | 1995-11-07 |
| 5458742 | Isolation of fullerenes | Wolfgang Mueller, Uwe Wirth | 1995-10-17 |