Issued Patents All Time
Showing 176–186 of 186 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4381404 | Process for the production of N,O-disubstituted urethanes and use thereof as starting materials for the production of organic isocyanates | Heinrich Krimm, Wolfgang Richter | 1983-04-26 |
| 4377670 | Copolymers based on aliphatic polycarbonates and lactams | Heinrich Krimm, Artur Botta | 1983-03-22 |
| 4348495 | Phosphorous acid esters and their use for stabilizing polyamides | Bert Brassat, Erich Eimers, Karl H. Hermann | 1982-09-07 |
| 4335051 | Process for the preparation of dimethyl carbonate | Heinrich Krimm, Siegfried Bohm | 1982-06-15 |
| 4330665 | Process for the preparation of aromatic polycarbonates | Heinrich Krimm, Hans Rudolph | 1982-05-18 |
| 4307032 | Process for the preparation of dialkyl carbonates | Heinrich Krimm, Hans Rudolph | 1981-12-22 |
| 4293687 | Tetraalkylated biscyclohexylamine derivatives | Oskar Weissel, Volker Serini | 1981-10-06 |
| 4263162 | Cyanoethylated polyamide amines as hardeners for polyepoxides | Hermann Gruber, Wolfgang Wellner, Karl Leiritz | 1981-04-21 |
| 4252737 | Process for the production of aromatic carbonic acid esters | Heinrich Krimm, Hans Rudolph | 1981-02-24 |
| 4252750 | Cyclic phosphorous acid esters | Bert Brassat, Erich Eimers, Karl H. Hermann | 1981-02-24 |
| 4181676 | Process for the preparation of dialkyl carbonates | Heinrich Krimm, Hans Rudolph | 1980-01-01 |