Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979068 | Differential pressure sealing device for ball valves | James P. Azzinaro, Hans D. Baumann | 2015-03-17 |
| 7264221 | Butterfly valve assembly with improved flow characteristics | Aaron Kielar, Adam Zmick, Matt Bardelli | 2007-09-04 |
| 4527771 | Butterfly valve protector | — | 1985-07-09 |