RS

Richard F. Christensen, Sr.

PP Pacific Seismic Products: 2 patents #3 of 10Top 30%
📍 Rosamond, CA: #12 of 39 inventorsTop 35%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,182,456 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6926025 Shock actuated responsive mechanism with improved leveraged valve closing activation means for vertical fluid valve assemblies Richard D. Sibley, William F. Keller 2005-08-09
6527004 Shock actuated responsive mechanism for vertical fluid valve assemblies Richard B. Sibley, William F. Keller 2003-03-04