Assignee
SOMMER CO
US·28 granted patents·447 citations·filing 1977–1995
Top patents by PatentIndex Score
28 records- 0193US4693350AClutch-brake unitSOMMER CO·Filed 1980·Granted Sep 15, 1987·42 cites·1 claims
- 0286US4183425AClutch-brake with speed differential coolant pumpSOMMER CO·Filed 1977·Granted Jan 15, 1980·26 cites·10 claims
- 0384US4921078AElectro-shear brakeSOMMER CO·Filed 1988·Granted May 1, 1990·29 cites·3 claims
- 0483US4432443AClutch and brake and improved universal couplingSOMMER CO·Filed 1981·Granted Feb 21, 1984·24 cites·12 claims
- 0578US5194057ATwo speed press driveSOMMER CO·Filed 1992·Granted Mar 16, 1993·28 cites·9 claims
- 0676US4377222ADrive systemSOMMER CO·Filed 1979·Granted Mar 22, 1983·19 cites·32 claims
- 0775US4356900ADrive systemSOMMER CO·Filed 1980·Granted Nov 2, 1982·19 cites·27 claims
- 0874US4527681AVariable speed drive unit with graduated increasing and decreasing speed profileSOMMER CO·Filed 1984·Granted Jul 9, 1985·19 cites·16 claims
- 0971US5186288AElectro-shear brakeSOMMER CO·Filed 1990·Granted Feb 16, 1993·22 cites·13 claims
- 1071US4552255AMultiple speed driveSOMMER CO·Filed 1983·Granted Nov 12, 1985·18 cites·13 claims
- 1165US4598804AMotor drive systemSOMMER CO·Filed 1984·Granted Jul 8, 1986·14 cites·6 claims
- 1261US5195623ATwo speed drive with oil shear electro clutch/brakeSOMMER CO·Filed 1992·Granted Mar 23, 1993·20 cites·7 claims
- 1361US4765448AInching driveSOMMER CO·Filed 1986·Granted Aug 23, 1988·18 cites·19 claims
- 1460US4616739AInching driveSOMMER CO·Filed 1983·Granted Oct 14, 1986·12 cites·7 claims
- 1560US4506772AModular accesories for clutch/brake unitSOMMER CO·Filed 1982·Granted Mar 26, 1985·12 cites·11 claims
- 1658US5487456APress drive with oil shear clutch/brake drives with internal flywheel brakeSOMMER CO·Filed 1994·Granted Jan 30, 1996·14 cites·13 claims
- 1758US4600368APressure actuated downhole pumpSOMMER CO·Filed 1985·Granted Jul 15, 1986·17 cites·7 claims
- 1854US4494635AInching drive for clutch/brake unitSOMMER CO·Filed 1982·Granted Jan 22, 1985·12 cites·8 claims
- 1951US4865172ACombination brake and inching deviceSOMMER CO·Filed 1987·Granted Sep 12, 1989·9 cites·8 claims
- 2051US4424887ABrake unitSOMMER CO·Filed 1981·Granted Jan 10, 1984·9 cites·33 claims
- 2148US4460075AReversing drive unitSOMMER CO·Filed 1982·Granted Jul 17, 1984·10 cites·6 claims
- 2247US5454765AElectrically energized oil shear drive systemSOMMER CO·Filed 1995·Granted Oct 3, 1995·10 cites·11 claims
- 2347US4422540AClutch/brake unit with modular heat exchangerSOMMER CO·Filed 1981·Granted Dec 27, 1983·7 cites·8 claims
- 2446US4171038AClutch unitSOMMER CO·Filed 1977·Granted Oct 16, 1979·7 cites·20 claims
- 2545US5323888AElectrical actuated multi-speed drive apparatusSOMMER CO·Filed 1993·Granted Jun 28, 1994·8 cites·15 claims
- 2644US4353448AClutch unitSOMMER CO·Filed 1980·Granted Oct 12, 1982·6 cites·5 claims
- 2743US4472077AClutch and brake and improved universal couplingSOMMER CO·Filed 1983·Granted Sep 18, 1984·5 cites·7 claims
- 2842US4496032ABrake unitSOMMER CO·Filed 1983·Granted Jan 29, 1985·11 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →