Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6720455 | Process for the production of polyisocyanates of the diphenylmethane series with a reduced color value | Torsten Hagen, Friedhelm Kamper, Heinz Muller | 2004-04-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6720455 | Process for the production of polyisocyanates of the diphenylmethane series with a reduced color value | Torsten Hagen, Friedhelm Kamper, Heinz Muller | 2004-04-13 |