Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5629397 | 2,6-dimethylphenylmaleimide as a comonomer for styrene copolymers and vinyl chloride copolymers | Gerhard Steinbauer, Jan Bartus, Heinrich Horacek, Otto Vogl | 1997-05-13 |
| 5597917 | Method for the production of N-cyclic and N,N'-dicyclic ureas and their use as chemical solvents | Kurt A. Hackl, Markus R ossler, Martin M ullner | 1997-01-28 |
| 5481035 | Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates | Martin Mullner, Markus Rossler | 1996-01-02 |
| 5414083 | Method for the production of N-cyclic and N,N'-dicyclic ureas and their use as chemical solvents | Kurt A. Hackl, Markus Rossler, Martin Mullner | 1995-05-09 |
| 5360601 | Process for the preparation of isocyanic acid by the decomposition of N,N-disubstituted ureas | Kurt A. Hackl, Martin Mullner, Erich Schulz, Heinz Falk | 1994-11-01 |
| 5248755 | Process for the preparation of asymmetrically substituted ureas, carbamates or thiocarbamates | Martin Muller, Erich Schulz, Markus Rossler | 1993-09-28 |
| 5223635 | Preparation of organic compounds using as a reactant an adduct of isocyanic acid and a tertiary amine or an ether | Martin Mullner, Erich Schulz | 1993-06-29 |
| 5091553 | Process for the preparation of substituted isocyanates | Martin Mullner, Erich Schulz, Markus Rossler | 1992-02-25 |
| 5078980 | Process for the removal of isocyanic acid from a mixture of isocyanic acid and ammonia | Martin Mullner, Erich Schulz | 1992-01-07 |
| 5043444 | Process for the preparation of asymmetrically substituted ureas | Martin Mullner, Markus Rossler | 1991-08-27 |
| 5034972 | Method of producing thin sheets and use of such sheets for the production of X-ray masks | Werner Schomburg, Werner Schelb | 1991-07-23 |
| 4910003 | Process for selective removal and destruction of hydrogen cyanide from nitrous-containing gases | Walter Kittl | 1990-03-20 |
| 4510099 | Process for preparing pure diacetonitrile | — | 1985-04-09 |
| 4447568 | Flame-retardant polyacrylonitrile fiber | Klaus Weinrotter | 1984-05-08 |
| 4408045 | Process for the preparation of partially etherified methylolmelamines | Wilhelm Dobramysl, Walter Raml | 1983-10-04 |
| 4405744 | Filler for paper, card or board, a process for its manufacture, and paper, card or board containing the filler | Herbert Greinecker | 1983-09-20 |