Assignee
SERCO CORP
CA·29 granted patents·1,117 citations·filing 1988–1995
Top patents by PatentIndex Score
29 records- 0198US5460460AScissors lift dock levelerSERCO CORP·Filed 1994·Granted Oct 24, 1995·80 cites·11 claims
- 0297US5396676AVertically storing dock levelerSERCO CORP·Filed 1992·Granted Mar 14, 1995·98 cites·5 claims
- 0396US5459963ASafety gate for loading docksSERCO CORP·Filed 1993·Granted Oct 24, 1995·94 cites·24 claims
- 0495US5088143ADock leveler lip actuation mechanismSERCO CORP·Filed 1990·Granted Feb 18, 1992·71 cites·13 claims
- 0594US5001799ASeal carried by a vertically storing dock levelerSERCO CORP·Filed 1989·Granted Mar 26, 1991·60 cites·20 claims
- 0693US5313681AVertically storing dock levelerSERCO CORP·Filed 1992·Granted May 24, 1994·56 cites·20 claims
- 0793US5026242AAutomatic vehicle restraintSERCO CORP·Filed 1990·Granted Jun 25, 1991·58 cites·18 claims
- 0893US4988254AVehicle restraintSERCO CORP·Filed 1988·Granted Jan 29, 1991·56 cites·21 claims
- 0991US5120181AVehicle restraintSERCO CORP·Filed 1990·Granted Jun 9, 1992·39 cites·22 claims
- 1090US4928340ADock levelerSERCO CORP·Filed 1989·Granted May 29, 1990·45 cites·9 claims
- 1187US5071306AVehicle restraintSERCO CORP·Filed 1990·Granted Dec 10, 1991·46 cites·17 claims
- 1286US5454682AVehicle restraintSERCO CORP·Filed 1994·Granted Oct 3, 1995·29 cites·20 claims
- 1386US5336033AVehicle restraintSERCO CORP·Filed 1992·Granted Aug 9, 1994·30 cites·18 claims
- 1485US5117526AVertically storing dock levelerSERCO CORP·Filed 1991·Granted Jun 2, 1992·42 cites·17 claims
- 1585US4937906AVariable lip throw-out for dockboardSERCO CORP·Filed 1989·Granted Jul 3, 1990·36 cites·9 claims
- 1683US5346353AVehicle restraintSERCO CORP·Filed 1993·Granted Sep 13, 1994·26 cites·22 claims
- 1782US4974276ADock leveler hold-down with variable position safety legsSERCO CORP·Filed 1989·Granted Dec 4, 1990·33 cites·11 claims
- 1877US5096359AVehicle restraint actuatorSERCO CORP·Filed 1990·Granted Mar 17, 1992·33 cites·6 claims
- 1975US4977635AControl circuit for vertically storing dock levelerSERCO CORP·Filed 1989·Granted Dec 18, 1990·26 cites·4 claims
- 2066US5303443ADock leveler hold-down systemSERCO CORP·Filed 1992·Granted Apr 19, 1994·21 cites·20 claims
- 2165US5097557ATrapezoidal beam dock levelerSERCO CORP·Filed 1990·Granted Mar 24, 1992·25 cites·9 claims
- 2263US4979253AHydraulic circuit for control of lip of vertically storing dock levelerSERCO CORP·Filed 1989·Granted Dec 25, 1990·16 cites·3 claims
- 2358US5259718AVehicle restraintSERCO CORP·Filed 1993·Granted Nov 9, 1993·17 cites·20 claims
- 2458US5157801ADock leveler having automatically actuated vehicle barrierSERCO CORP·Filed 1991·Granted Oct 27, 1992·17 cites·8 claims
- 2554US5048246AWedge seal for loading dock shelterSERCO CORP·Filed 1990·Granted Sep 17, 1991·23 cites·16 claims
- 2652US5526545AAutomatic return to dock mechanismSERCO CORP·Filed 1995·Granted Jun 18, 1996·14 cites·20 claims
- 2749US6190108B1Vehicle restraintSERCO CORP·Filed 1995·Granted Feb 20, 2001·8 cites·13 claims
- 2845US4961241ABrake for rail dock levelerSERCO CORP·Filed 1989·Granted Oct 9, 1990·8 cites·9 claims
- 2944US5511267ADock leveler hydraulic circuitSERCO CORP·Filed 1995·Granted Apr 30, 1996·10 cites·7 claims
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