Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377703 | Process for preparing benzoxanthene and benzothioxanthene dyestuffs | Emmerich Paszthory | 1983-03-22 |
HE
Hans-Gerd Elinkmann
Overall (All Time): #4,049,919 of 4,157,543Top 100%
1
Patents All Time