Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5175349 | Stabilization of organic polyisocyanates | Pramod Gupta, Christian König, Hans-Jurgen Rabe, Hans-Wilhelm Engels, Wilfried Nolte | 1992-12-29 |
| 4771067 | Process for the production of 4-nitrodiphenylamines | Harro Schlesmann | 1988-09-13 |
| 4670595 | Process for the production of 4-nitrodiphenylamines | Harro Schlesmann | 1987-06-02 |
| 4665232 | Process for the preparation of 4-nitrodiphenylamines | Harro Schlesmann | 1987-05-12 |
| 4665233 | Process for the preparation of 4-nitrodiphenylamines | Harro Schlesmann | 1987-05-12 |