Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7723864 | AC-to-DC electrical switching circuit | Walter A. Zub, Isaac Davenport, Nathaniel W. Crutcher | 2010-05-25 |
| 7623351 | Valve with an integrated PC board and connecting bar | Walter A. Zub | 2009-11-24 |
| 7344271 | Valve island having the expansion PC board secured in the expansion station | Walter A. Zub | 2008-03-18 |
| 5372392 | Connecting devices | Myron Dunn, Kevin T. Dickson | 1994-12-13 |