Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8408245 | Valve actuator with vent | Joel F. Feldman, Daniel E. Zeiler, Charles W. Hayes, II, David Hasak, Yancy J. Waller | 2013-04-02 |
| 7610928 | Valve and actuator assemblies | Joel F. Feldman, Daniel E. Zeiler, Charles W. Hayes, II, David Hasak, Yancy J. Waller | 2009-11-03 |