Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189449 | Production of quaternary phosphonium hydroxides | Klaus Hestermann | 1980-02-19 |
HV
Hartfried Vollmer
Overall (All Time): #4,106,613 of 4,157,543Top 100%
1
Patents All Time