Issued Patents All Time
Showing 101–125 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820757 | Polymers photostabilized by novel imidazole-2-carboxanilides | Peter Spang, Gerhard Wagenblast, Hubert Trauth | 1989-04-11 |
| 4814256 | Optical recording material | Reinhard Aldag | 1989-03-21 |
| 4806664 | Novel tetraphenyldithiolene complexes, asymmetrically substituted benzoins, and optical recording materials containing the novel complexes | Wolfgang Schrott, Bernhard Albert, Michael Thomas, Helmut Barzynski, Klaus D. Schomann +1 more | 1989-02-21 |
| 4789382 | Benzophenone ether esters and use thereof to improve the light fastness of polyester dyeings | Dieter Wegerle, Reinhold Krallmann | 1988-12-06 |
| 4785088 | Pigments and their preparation | Helmut Flohr, Joachim Jesse, Bernhard Albert | 1988-11-15 |
| 4785114 | Quinophthalone dyes | Wolfgang Lotsch, Heinrich Kowarsch | 1988-11-15 |
| 4785107 | 3-tert-butyl-4-hydroxyphenylpropionic acid amino-alkylamide derivatives | Reinhard Helwig, Herbert Bender, Alexander Aumueller, Hubert Trauth | 1988-11-15 |
| 4769457 | Glycoluril derivatives and their use as stabilizers for polymers | Reinhard Helwig, Alexander Aumueller, Hubert Trauth | 1988-09-06 |
| 4743521 | Electrophotographic material with mxiture of charge transport materials | Gerhard Hoffmann, Reinhold J. Leyrer | 1988-05-10 |
| 4739053 | 2H-v-triazolo[4-5-d]pyrimidines | Bernhard Albert, Gerhard Hoffmann | 1988-04-19 |
| RE32628 | Curable compositions based on epoxy resins | Helmut Tesch, Manfred Heym, Walter Doerflinger, Herbert Stutz, Dietmar Nissen +1 more | 1988-03-22 |
| 4719170 | Optical recording material | Wolfgang Schrott | 1988-01-12 |
| 4707548 | Bisisoindoline pigments | Wolfgang Lotsch, Gustav Bock | 1987-11-17 |
| 4707161 | Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides: treatment with copper hydroxamates | Michael Thomas, Dieter Wegerle, Reinhold Krallmann | 1987-11-17 |
| 4702945 | Optical recording medium | Karl-Heinz Etzbach, Matthias Dust, Helmut Ringsdorf, Hans-Werner Schmidt, Guenter Baur +2 more | 1987-10-27 |
| 4703072 | Tetrahydrofurancarboxylic acid derivatives | Reinhard Helwig, Alexander Aumueller, Hubert Trauth | 1987-10-27 |
| 4676774 | Apparatus for the insufflation of gas | Kurt Semm | 1987-06-30 |
| 4675423 | Camphordithiolene complexes | Wolfgang Schrott, Bernhard Albert | 1987-06-23 |
| 4666948 | Preparation of resilient melamine foams | Frank P. Woerner, Harald Mahnke, Josef Lamprecht, Dieter Horn, Gerhard Turznik +3 more | 1987-05-19 |
| 4667019 | Azo dyes containing a triazolyl group for use in liquid crystalline materials | Karl-Heinz Etzbach | 1987-05-19 |
| 4652565 | Piperazine derivatives, their production and pharmaceutical compositions containing them | — | 1987-03-24 |
| 4649080 | Fiber-reinforced materials | Juergen Fischer, Hartmut Zeiner, Dietmar Nissen, Gerhard Heinz | 1987-03-10 |
| 4616070 | Thermoplastic molding materials | Hartmut Zeiner, Gerhard Heinz, Juergen Fischer, Dietmar Nissen | 1986-10-07 |
| 4613334 | Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides | Michael Thomas, Dieter Wegerle, Reinhold Krallmann | 1986-09-23 |
| 4607069 | Curable compositions based on epoxy resins | Helmut Tesch, Manfred Heym, Walter Doerflinger, Herbert Stutz, Dietmar Nissen +1 more | 1986-08-19 |