Assignee
SPARCO INC
US·8 granted patents·227 citations·filing 1986–1999
Top patents by PatentIndex Score
8 records- 0182US6032924AMotorized valve actuating deviceSPARCO INC·Filed 1999·Granted Mar 7, 2000·49 cites·5 claims
- 0277US5988201AAutomatic vent having a multi-hinged valveSPARCO INC·Filed 1998·Granted Nov 23, 1999·39 cites·13 claims
- 0377US5529282AValve actuating device of a heating and/or cooling systemSPARCO INC·Filed 1995·Granted Jun 25, 1996·38 cites·20 claims
- 0470US5952769AMethod for coating sparkplugsSPARCO INC·Filed 1996·Granted Sep 14, 1999·34 cites·31 claims
- 0568US5490874ADe-aerator apparatusSPARCO INC·Filed 1995·Granted Feb 13, 1996·36 cites·14 claims
- 0663US5941500AValve actuating device having a reduced impact operating mechanismSPARCO INC·Filed 1998·Granted Aug 24, 1999·23 cites·6 claims
- 0735USD369650SZone valve operatorSPARCO INC·Filed 1995·Granted May 7, 1996·2 cites·1 claims
- 0833US4739925APower driven valve actuatorSPARCO INC·Filed 1986·Granted Apr 26, 1988·6 cites·15 claims
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