Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618889 | Poly(arylether)/liquid crystalline polyester block copolymers and a process for their production | Robert J. Kumpf, Douglas A. Wicks, Harald Pielartzik, Rolf Wehrmann | 1997-04-08 |
| 5294729 | Process for the preparation of a block oligocarbonate | Douglas A. Wicks, Rick L. Archey, Gary W. Munko | 1994-03-15 |
| 5273952 | Dye acceptor element for thermosublimation printing | Rolf Wehrmann, Herbert Hugl | 1993-12-28 |
| 5221727 | Aromatic polyethers containing ester groups | Robert J. Kumpf, Rolf Wehrmann, Harald Pielartzik | 1993-06-22 |
| 5204454 | Prepolymeric polyols containing mesogenic units | Randall A. Rodenhouse, Douglas A. Wicks | 1993-04-20 |
| 5169907 | Polyether/polycarbonate block copolymers and a process for their production | Robert J. Kumpf, Rolf Wehrmann, Harald Pielartzik | 1992-12-08 |
| 5140056 | Alkali or alkaline earth salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent polycarconate films | Volker Wiskamp, Bernhard Schulte, Werner Waldenrath | 1992-08-18 |
| 5124128 | Process for the production of porous membranes, the membranes produced thereby and their use as supporting matrices in test strips | Karlheinz Hildenbrand, Klaus Wehling | 1992-06-23 |
| 5064929 | Aromatic polyethers containing azo groups | Robert J. Kumpf | 1991-11-12 |
| 5030516 | Coated substrates having an ultrathin, single-layer or multilayer coating, a process for their production and polyesters as intermediate products for the coated substrates | Rolf Wehrmann, Heinrich-Christian Schopper | 1991-07-09 |
| 4978732 | Coated supports with ultra-thin, single-layer or multi-layer coating, process for their production and polyurethanes as intermediates for the coated supports | Rolf Wehrmann, Heinrich-Christian Schopper | 1990-12-18 |
| 4973414 | Polyethers, process for their preparation and lubricants containing these polyethers | Karl-Heinz Hentschel, Christian Rasp, Pramod Gupta, Siegfried Kussi | 1990-11-27 |
| 4968430 | Composite membranes, processes for their preparation and their use | Karlheinz Hildenbrand, Rolf Dhein, Willi Meister | 1990-11-06 |