Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161537 | Valve | Thomas A. Ketzer, Anthony K. Beard, James S. Zielinski, Mark Breining | 2018-12-25 |
| 9505334 | Valve | Thomas A. Ketzer, Anthony K. Beard, James S. Zielinski, Mark Breining | 2016-11-29 |