Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107484 | Process for preparing polyisocyanates containing iminooxadiazinedione groups | Frank Richter, Stefan Groth, Wilfried Litz | 2000-08-22 |
| 6090939 | Process for preparing polyisocyanates containing iminooxadiazinedione groups | Frank Richter, Wilfried Litz, Stefan Groth | 2000-07-18 |