Assignee
COMMERCIAL SHEARING
US·43 granted patents·657 citations·filing 1974–1988
Top patents by PatentIndex Score
43 records- 0193US4830536AMethod and apparatus for tunnel liningCOMMERCIAL SHEARING·Filed 1984·Granted May 16, 1989·50 cites·16 claims
- 0291US4682939AGear pump or motor with tooth tips of dissimilar metalCOMMERCIAL SHEARING·Filed 1986·Granted Jul 28, 1987·45 cites·9 claims
- 0388USD273586SConvertable pump and motorCOMMERCIAL SHEARING·Filed 1980·Granted Apr 24, 1984·28 cites·1 claims
- 0485US4879501AConstant speed hydrostatic drive systemCOMMERCIAL SHEARING·Filed 1982·Granted Nov 7, 1989·35 cites·12 claims
- 0580US4777981AMagnetic detent joy stick and stack remote control valvesCOMMERCIAL SHEARING·Filed 1987·Granted Oct 18, 1988·39 cites·5 claims
- 0680US4470776AMethods and apparatus for gear pump lubricationCOMMERCIAL SHEARING·Filed 1979·Granted Sep 11, 1984·32 cites·8 claims
- 0777US4835359AMethod of manufacturing hemispherical tank headsCOMMERCIAL SHEARING·Filed 1988·Granted May 30, 1989·38 cites·12 claims
- 0875US4497597ACribbingCOMMERCIAL SHEARING·Filed 1982·Granted Feb 5, 1985·22 cites·8 claims
- 0974US4187877ACompensated work port fluid valvesCOMMERCIAL SHEARING·Filed 1978·Granted Feb 12, 1980·21 cites·9 claims
- 1070US4565469ACribbingCOMMERCIAL SHEARING·Filed 1984·Granted Jan 21, 1986·18 cites·13 claims
- 1170US4361169APressure compensated control valvesCOMMERCIAL SHEARING·Filed 1979·Granted Nov 30, 1982·18 cites·30 claims
- 1264US4095617AControl valvesCOMMERCIAL SHEARING·Filed 1977·Granted Jun 20, 1978·18 cites·5 claims
- 1363US4825752AEnd-of-stroke bypass valve in piston for impact relief in hydraulic tilt and trim cylinderCOMMERCIAL SHEARING·Filed 1987·Granted May 2, 1989·23 cites·5 claims
- 1463USD273587SConvertable pump and motorCOMMERCIAL SHEARING·Filed 1980·Granted Apr 24, 1984·9 cites·1 claims
- 1563US4262915ALow friction drag sealsCOMMERCIAL SHEARING·Filed 1979·Granted Apr 21, 1981·18 cites·7 claims
- 1663US4242066ARotary pumps and motors and thrust plates thereforCOMMERCIAL SHEARING·Filed 1978·Granted Dec 30, 1980·16 cites·22 claims
- 1762US4086767ATrack drive circuits with synchronization and steering systemsCOMMERCIAL SHEARING·Filed 1977·Granted May 2, 1978·19 cites·10 claims
- 1857US4352375AControl valvesCOMMERCIAL SHEARING·Filed 1980·Granted Oct 5, 1982·13 cites·16 claims
- 1956US4519419AHydraulic valvesCOMMERCIAL SHEARING·Filed 1982·Granted May 28, 1985·12 cites·12 claims
- 2056US4111103AThrust rings for swash plate pumps and motorsCOMMERCIAL SHEARING·Filed 1977·Granted Sep 5, 1978·17 cites·5 claims
- 2153US4058135ACompensated work port fluid valves and work port compensatorsCOMMERCIAL SHEARING·Filed 1976·Granted Nov 15, 1977·10 cites·4 claims
- 2251US4519420AHydraulic valvesCOMMERCIAL SHEARING·Filed 1982·Granted May 28, 1985·10 cites·9 claims
- 2350US4585024AAir shift conversion apparatus for manual valvesCOMMERCIAL SHEARING·Filed 1984·Granted Apr 29, 1986·12 cites·8 claims
- 2449US4358724ASolid state servo amplifier for a D.C. motor position control systemCOMMERCIAL SHEARING·Filed 1980·Granted Nov 9, 1982·10 cites·3 claims
- 2545US4245547ARotary to linear servo mechanismsCOMMERCIAL SHEARING·Filed 1977·Granted Jan 20, 1981·7 cites·4 claims
- 2642US4349319APressure and flow compensated control system with constant torque and viscosity sensing over-rideCOMMERCIAL SHEARING·Filed 1980·Granted Sep 14, 1982·11 cites·11 claims
- 2741US4803415AStepper motor control circuit and apparatusCOMMERCIAL SHEARING·Filed 1987·Granted Feb 7, 1989·14 cites·26 claims
- 2841US4789002AFluid valve structuresCOMMERCIAL SHEARING·Filed 1987·Granted Dec 6, 1988·9 cites·44 claims
- 2941US4709724AFluid valve structuresCOMMERCIAL SHEARING·Filed 1986·Granted Dec 1, 1987·9 cites·47 claims
- 3040US3975993APiston-rod unit for hydraulic machinesCOMMERCIAL SHEARING·Filed 1974·Granted Aug 24, 1976·8 cites·7 claims
- 3137US4636155AHydraulic seal having U-shaped gasket and a plurality of plastically deformable postsCOMMERCIAL SHEARING·Filed 1984·Granted Jan 13, 1987·5 cites·7 claims
- 3237US4569367AHydraulic valve inlet unloadersCOMMERCIAL SHEARING·Filed 1985·Granted Feb 11, 1986·5 cites·10 claims
- 3337US4337018ARotary impeller pump or motor with counterbalancing chamber in thrust plate bearing counterboreCOMMERCIAL SHEARING·Filed 1980·Granted Jun 29, 1982·10 cites·10 claims
- 3434US4569372ARemote valve operatorsCOMMERCIAL SHEARING·Filed 1984·Granted Feb 11, 1986·4 cites·9 claims
- 3533US4354526AControl valvesCOMMERCIAL SHEARING·Filed 1980·Granted Oct 19, 1982·4 cites·5 claims
- 3632US4237769ARelief valves and mine props incorporating the sameCOMMERCIAL SHEARING·Filed 1978·Granted Dec 9, 1980·4 cites·2 claims
- 3730US4194366ATwo speed valves and bi-directional motor systemCOMMERCIAL SHEARING·Filed 1978·Granted Mar 25, 1980·2 cites·7 claims
- 3828US4338962AControl and relief valvesCOMMERCIAL SHEARING·Filed 1980·Granted Jul 13, 1982·3 cites·6 claims
- 3927US4839935AMini arched bridgeCOMMERCIAL SHEARING·Filed 1987·Granted Jun 20, 1989·10 cites·14 claims
- 4025US4070866ATunnel liners and methods of making the sameCOMMERCIAL SHEARING·Filed 1975·Granted Jan 31, 1978·6 cites·4 claims
- 4124US4744288AAxial piston pumps and motorsCOMMERCIAL SHEARING·Filed 1986·Granted May 17, 1988·3 cites·9 claims
- 4224US4159024AFluid control valveCOMMERCIAL SHEARING·Filed 1977·Granted Jun 26, 1979·7 cites·7 claims
- 4320US4292013ARotary impeller or motor with pressure balanced end platesCOMMERCIAL SHEARING·Filed 1979·Granted Sep 29, 1981·3 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →