Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9400144 | Modular counterflow fill hanging system apparatus and method | Randall W. Powell, Duane Krehbiel, Paul Hink, Eldon F. Mockry | 2016-07-26 |
| 5008929 | Billing system for telephone signaling network | Steven A. Olsen, William J. Cronin, Ben Jarvis | 1991-04-16 |