Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527004 | Shock actuated responsive mechanism for vertical fluid valve assemblies | Richard B. Sibley, Richard F. Christensen, Sr. | 2003-03-04 |
| 6502599 | Shock actuated responsive mechanism for vertical fluid valve assemblies | Richard D. Sibley | 2003-01-07 |