Inventor · disambiguated record
William F. Keller
Also filed as: KELLER WILLIAM F
14 granted patents·288 citations·filing 1981–2003
94Inventor score
Top patents by PatentIndex Score
14 records- 0191US6394122B1Shock actuated sensor for fluid valvePACIFIC SEISMIC PRODUCTS INC·Filed 2000·Granted May 28, 2002·43 cites·6 claims
- 0285US6502599B1Shock actuated responsive mechanism for vertical fluid valve assembliesPACIFIC SEISMIC PRODUCTS INC·Filed 2001·Granted Jan 7, 2003·32 cites·24 claims
- 0382US6789560B1Shock actuated responsive mechanism with improved safety means to prevent over-rotation of the valve reset mechanismPACIFIC SEISMIC PRODUCTS INC·Filed 2003·Granted Sep 14, 2004·34 cites·4 claims
- 0480US6527004B1Shock actuated responsive mechanism for vertical fluid valve assembliesPACIFIC SEISMIC PRODUCTS INC·Filed 2002·Granted Mar 4, 2003·31 cites·28 claims
- 0575US4603591ADevice responsive to shock forcesKOSO INTERNATIONAL INC·Filed 1984·Granted Aug 5, 1986·27 cites·19 claims
- 0672US4915122AShock actuated valveKOSO INTERNATIONAL INC·Filed 1989·Granted Apr 10, 1990·29 cites·24 claims
- 0765US4513629AShock responsive deviceKOSO INTERNATIONAL INC·Filed 1982·Granted Apr 30, 1985·22 cites·10 claims
- 0864US4503717AShock actuated unitKOSO INTERNATIONAL INC·Filed 1982·Granted Mar 12, 1985·17 cites·18 claims
- 0962US4475565AMagnetically actuable shock responsive unitKOSO INTERNATIONAL INC·Filed 1982·Granted Oct 9, 1984·20 cites·13 claims
- 1054US4782848AShock actuated deviceKOSO INTERNATIONAL INC·Filed 1988·Granted Nov 8, 1988·16 cites·34 claims
- 1150US6926025B1Shock actuated responsive mechanism with improved leveraged valve closing activation means for vertical fluid valve assembliesPACIFIC SEISMIC PRODUCTS INC·Filed 2002·Granted Aug 9, 2005·4 cites·38 claims
- 1234US5295403AMechanical actuatorKOSO INTERNATIONA INC·Filed 1993·Granted Mar 22, 1994·6 cites·36 claims
- 1333US4452125AManual-hydraulic actuatorKOSO INTERNATIONAL INC·Filed 1981·Granted Jun 5, 1984·4 cites·28 claims
- 1432US4721027ADouble acting linear actuatorKOSO INTERNATIONAL INC·Filed 1981·Granted Jan 26, 1988·3 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →