Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013384 | Vacuum system | Willem F. Mellink, Peter Janssen, Jan Zwier | 1991-05-07 |
HL
Harm Lotterman
Overall (All Time): #3,875,805 of 4,157,543Top 95%
1
Patents All Time