Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219533 | Apparatus for the production of hexagonal phosphorus pentoxide | Werner Kowalski, Robert Queck, Theo Dahmen | 1980-08-26 |
GH
Gerhard Hartlapp
Overall (All Time): #4,118,528 of 4,157,543Top 100%
1
Patents All Time