Issued Patents All Time
Showing 26–50 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6221870 | Ergoline derivatives and their use as somatostatin receptor antagonists | Paul Pfaeffli, Robert Swoboda, Peter Stutz | 2001-04-24 |
| 5972508 | Microcapsules containing bleaching aids | Dieter Boeckh, Birgit Potthoff-Karl, Werner Bertleff, Ekkehard Jahns, Ralf Biastoch +1 more | 1999-10-26 |
| 5925747 | Pumpable water-containing surfactant concentrates | Guenter Uphues, Joerg Kahre, Ansgar Behler, Hermann Hensen, Werner Seipel +1 more | 1999-07-20 |
| 5885988 | Benzog!quinoline derivatives | Paul Pfaeffli, Max Peter Seiler, Robert Swoboda | 1999-03-23 |
| 5728867 | Carbonyloxy-substituted azulenesquaric acid dyes, intermediates therefor and optical recording medium | Michael Schmitt, Wolfgang Schrott, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier | 1998-03-17 |
| 5714180 | Double closing unit for an injection moulding machine | Alfred Lampl | 1998-02-03 |
| 5554318 | Use of compounds which absorbs and fluoresce in the IR range as crack-detecting agents | J urgen Kipper, Bernhard Albert, Gerhard Wagenblast | 1996-09-10 |
| 5166359 | Azulenemethine dyes and an optical recording medium containing the novel dyes | Michael Acker, Wolfgang Schrott, Matthias Dust | 1992-11-24 |
| 5130440 | Process for the production of 2-alkyl- or alkenyl-2-oxazolines | Horst-Juergen Krause | 1992-07-14 |
| 5093492 | Methine dyes and optical recording medium containing same | Michael Acker, Mathias Dust, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier | 1992-03-03 |
| 5087727 | A zulenes containing a urethane group | Wolfgang Schrott, Michael Schmitt, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier | 1992-02-11 |
| 5084592 | Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium | Wolfgang Schrott, Sibylle Brosius, Helmut Barzynski, Klaus D. Schomann, Harald Kuppelmaier | 1992-01-28 |
| 5082973 | Process for the preparation of bis(4-chlorophenyl) sulfone | Michael Stumpp, Heinz Eilingsfeld | 1992-01-21 |
| 5072034 | Preparation of 4-alkoxy-2-hydroxybenzophenone-5-sulfonic acids | Heinz Eilingsfeld, Alexander Aumueller | 1991-12-10 |
| 5072049 | Process for the preparation of bis(4-hydroxyphenyl) sulfone | Michael Stumpp, Bernd Hupfeld, Helmut Reichelt | 1991-12-10 |
| 5071588 | Liquid-crystalline mixture containing an azulenesquaric acid dye | Wolfgang Schrott, Karin H. Beck, Karl-Heinz Etzbach | 1991-12-10 |
| 5069991 | Panchromatic electrophotographic recording element containing multiple carrier-producing sensentizers | Reinhold J. Leyrer, Matthias Dust | 1991-12-03 |
| 5064702 | Quinoxalinepentamethine dyes and optical recording medium containing same | Michael Acker, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier | 1991-11-12 |
| 5061596 | Silicon naphthalocyanines and thin radiation sensitive coating films containing same | Bernhard Albert, Sibylle Brosius | 1991-10-29 |
| 5059715 | Preparation of bis(4-hydroxyphenyl)sulfone | Michael Stumpp, Wolfgang Ruehenback, Michael Bergner | 1991-10-22 |
| 5047312 | Silicon naphthalocyanines with unsaturated ligands and optical recording medium | Bernhard Albert, Sibylle Brosius | 1991-09-10 |
| 5047539 | Heterocyclic amidine derivatives | Peter Spang, Hubert Trauth | 1991-09-10 |
| 5047571 | Process for the preparation of 2-cyano-3,3-diarylacrylates | Peter Spang | 1991-09-10 |
| 5032495 | Tetraazaporphyrins and optical recording medium | Bernhard Albert, Rolf-Dieter Kohler | 1991-07-16 |
| 5017702 | 2,6-polyalkyl-4-piperidylamides, use thereof as stabilizers, in particular for plastics, and organic material containing same | Alexander Aumueller, Hubert Trauth | 1991-05-21 |