Inventor · disambiguated record
Larry K. Spencer
Also filed as: SPENCER LARRY K
6 granted patents·92 citations·filing 1980–1988
84Inventor score
Top patents by PatentIndex Score
6 records- 0167US4414995AThree-way hydraulic controllerSPENCER LARRY K·Filed 1982·Granted Nov 15, 1983·26 cites·12 claims
- 0259US4306586AThree way valveSPENCER LARRY K·Filed 1980·Granted Dec 22, 1981·21 cites·10 claims
- 0351US4643228AConvertible high or low pressure pilot valveSIGMA ENTERPRISES INC·Filed 1984·Granted Feb 17, 1987·15 cites·17 claims
- 0447US4645431AHydraulic pumping apparatus and method of operationSIGMA ENTERPRISES INC·Filed 1986·Granted Feb 24, 1987·16 cites·11 claims
- 0541US4768373ACorrosion and erosion sensorSIGMA ENTERPRISES INC·Filed 1987·Granted Sep 6, 1988·9 cites·20 claims
- 0633US5013218ASubmersible pneumatic pump for water tableSIGMA ENTERPRISES INC·Filed 1988·Granted May 7, 1991·5 cites·38 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →