Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8833389 | Captured check ball valve cartridge | Robert A. Dziurda | 2014-09-16 |
FZ
Frederic Zenczenko
Overall (All Time): #3,125,279 of 4,157,543Top 80%
1
Patents All Time