Issued Patents All Time
Showing 126–150 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4604471 | Furan-3-carbohydroxamates and their use | Michael Thomas, Stefan Weiss, Hubert Trauth | 1986-08-05 |
| 4603205 | Furan-3-carboxylic acid derivatives | Reinhard Helwig, Stefan Weiss, Hubert Trauth | 1986-07-29 |
| 4590104 | Production of fiber-reinforced materials | Hartmut Zeiner, Jürgen Fischer, Gerhard Heinz, Dietmar Nissen, Gerhard Schaefer | 1986-05-20 |
| 4588725 | 2-piperazinyl-quinazoline derivatives and pharmaceutical compositions containing them | — | 1986-05-13 |
| 4584359 | Vinyl polymer membranes | Hans-Josef Sterzel, Axel Sanner | 1986-04-22 |
| 4567248 | Branched, high molecular weight, thermoplastic polyarylene ethers containing nitrile groups, and their preparation | Gerd Blinne, Herbert Bender | 1986-01-28 |
| 4567271 | Benzoxadiazoles and benzothiadiazoles | — | 1986-01-28 |
| 4565816 | Piperazine derivatives and pharmaceutical composition containing them | — | 1986-01-21 |
| 4556621 | Electrophotographic recording material containing a metal-1,3-diketone complex | Gerhard Hoffmann | 1985-12-03 |
| 4556622 | Electrophotographic recording material whose photoconductor layer contains a halogenated perylene dye sensitizer | Karl-Heinz Etzbach, Gerhard Hoffmann | 1985-12-03 |
| 4533612 | Electrophotographic recording materials containing special charge carrier-transporting compounds | Heinz Eilingsfeld, Karl-Heinz Etzbach, Gerhard Hoffmann | 1985-08-06 |
| 4530940 | Stabilized melamine resin foams | Frank P. Woerner, Horst Reimann, Harald Mahnke, Gerhard Turznik, Hanshelmut Kaeppel | 1985-07-23 |
| 4517270 | Electrophotographic recording medium | Fritz Graser, Gerhard Hoffmann, Reinhold J. Leyrer, Manfred Patsch | 1985-05-14 |
| 4512929 | 1-Alkyl-2-isocyanatomethyl-isocyanatobenzenes and/or 1-alkyl-4-isocyanatomethyl-isocyanatobenzenes | Erwin Hahn | 1985-04-23 |
| 4481272 | Layered electrophotographic recording medium comprising heterocyclic nitrogen containing organic dye compounds | Albrecht Eckell, Heinz Eilingsfeld, Albert Elzer, Franz Feichtmayr, Gerhard Hoffmann +1 more | 1984-11-06 |
| 4476135 | Amino-2,1,3-benzothiadiazole and -benzoxadiazole derivatives, their preparation and pharmaceutical compositions containing them | Gerhard Bormann | 1984-10-09 |
| 4466972 | Benzoxadiazoles and benzothiadiazoles, their preparation and pharmaceutical compositions containing them | — | 1984-08-21 |
| 4465857 | Phenylhydrazones | Karl-Heinz Etzbach, Heinz Eilingsfeld, Gerhard Hoffmann | 1984-08-14 |
| 4456672 | Electrophotographic recording materials containing triazole charge carrier-transporting compounds | Heinz Eilingsfeld, Karl-Heinz Etzbach, Gerhard Hoffmann | 1984-06-26 |
| 4419427 | Electrophotographic medium with perylene-3,4,9,10-tetracarboxylic acid N,N'-bis-(2',6'-dichlorophenyl)-diimide | Fritz Graser, Gerhard Hoffmann, Reinhold J. Leyrer | 1983-12-06 |
| 4407810 | Thiazol-2-yl-oxamic acid derivatives, and therapeutic agents containing these compounds | Heinz Eilingsfeld, Guenther Seybold, Dieter Lenke, Ludwig Friedrich | 1983-10-04 |
| 4398028 | Bicyclic heterocyclic amino derivatives | — | 1983-08-09 |
| 4389475 | Multilayered electrophotographic recording medium | Gerhard Hoffmann | 1983-06-21 |
| 4373102 | Isoindoline dyes, their preparation and use | Wolfgang Elser, Gustav Bock, Wolf-Dieter Kermer | 1983-02-08 |
| 4301633 | Shingle-type building element | — | 1981-11-24 |