Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9328837 | Double seat valve with isolated vent chambers | Drew Norman | 2016-05-03 |
| 6076571 | Passthrough assemblies for a chemical protective suit | Louis M. Riccio, Edward Alan Culpepper | 2000-06-20 |
| D354924 | Dimpled reusable security pin | Glen Walter Garner, William G. L. Knecht | 1995-01-31 |
| D352913 | Anti-theft pin for store merchandise | Glen Walter Garner, William G. L. Knecht | 1994-11-29 |