Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7490627 | Butterfly valve with water-filling function | — | 2009-02-17 |
AH
Akinobu Hourai
Overall (All Time): #3,317,631 of 4,157,543Top 80%
1
Patents All Time