Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644567 | Remotely operated cutting mode shifting apparatus for a combination fluid jet decoking tool | Douglas Adams, Jay Roger Clark, Lloyd D. Hanson, Martin Prescott, Richard Tran | 2003-11-11 |
| 6050277 | Decoking tool carrier with a self-propelled climbing crosshead | Richard Tran | 2000-04-18 |
| 5816505 | Fluid jet decoking tool | Richard Tran | 1998-10-06 |
| 4407327 | Flow control valve | Lloyd D. Hanson | 1983-10-04 |
| 4295487 | Cleanout apparatus for flow control valves | — | 1981-10-20 |
| 4275842 | Decoking nozzle assembly | Lloyd D. Hanson | 1981-06-30 |