Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6318396 | Double valve with anti-tiedown capability | David W. Haselden, Jr., Neil E. Russell, C. Brian Wolfe | 2001-11-20 |
| 6155293 | Double valve with anti-tiedown capability | David W. Haselden, Jr., Neil E. Russell, C. Brian Wolfe | 2000-12-05 |
| 5927324 | Cross flow with crossmirror and lock out capability valve | Neil E. Russell, C. Brian Wolfe | 1999-07-27 |
| 5850852 | Crossflow with crossmirror and lock out capability valve | Neil E. Russell, C. Brian Wolfe | 1998-12-22 |
| 4883091 | Multi-port self-regulating proportional pressure control valve | Charles A. Weiler, Jr. | 1989-11-28 |
| 4542767 | Monitor for double safety valves | Douglas M. Thornton | 1985-09-24 |