Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855504 | Process for producing higher molecular weight amino compounds having reduced monomeric amine content | Ernst Grigat, Gerhard Grogler, Heinrich Hess, Richard Kopp | 1989-08-08 |
| 4843107 | Process for the preparation of polyamines and their use for the preparation of polyurethanes | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4843108 | Process for the production of polyamines | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4835224 | Process for the preparation of polyamines and their use for the production of polyurethanes | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-05-30 |
| 4797320 | Composite plastic moldings and a process for their production | Richard Kopp, Gerhard Grogler, Heinrich Hess, Hermann Schafer | 1989-01-10 |