Inventor
ALEXANDER JAMES C
CA92 patents
⚠️ This page may combine multiple inventors who share the name “ALEXANDER JAMES C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNITED DOMINION IND INC
20 patentsUS6781516B2Aug 24, 2004
Master control panel for loading dock equipment
UNITED DOMINION IND INC92 citations96
US6125491AOct 3, 2000
Counterbalance for mechanical dock leveler
UNITED DOMINION IND INC77 citations96
US6082952AJul 4, 2000
Automatic wheel chock system
UNITED DOMINION IND INC81 citations96
US5934857AAug 10, 1999
Automatic wheel chock system
UNITED DOMINION IND INC58 citations96
US5832554ANov 10, 1998
Dock leveler with cam assisted lip extension
UNITED DOMINION IND INC60 citations96
US5743697AApr 28, 1998
Automatic wheel chock
UNITED DOMINION IND INC57 citations96
US5586355ADec 24, 1996
Safety device for a vertically stored dock leveler
UNITED DOMINION IND INC73 citations96
US5831540ANov 3, 1998
Control system for loading docks
UNITED DOMINION IND INC93 citations95
US6769149B2Aug 3, 2004
Multi-position releasable lip latch for a dock leveler
UNITED DOMINION IND INC30 citations93
US6370719B1Apr 16, 2002
Dock leveler lip construction
UNITED DOMINION IND INC25 citations93
US6123496ASep 26, 2000
Automatic wheel chock
UNITED DOMINION IND INC36 citations93
US6035475AMar 14, 2000
Maintenance prop for a dock leveler
UNITED DOMINION IND INC33 citations93
US6006389ADec 28, 1999
Loading dock with adjustable bumpers
UNITED DOMINION IND INC47 citations93
US5881414AMar 16, 1999
Loading dock with adjustable bumpers
UNITED DOMINION IND INC35 citations93
US5826291AOct 27, 1998
Electrically actuated dock leveler
UNITED DOMINION IND INC26 citations93
US5813072ASep 29, 1998
Automatic safety legs for dock leveler
UNITED DOMINION IND INC32 citations93
US5774920AJul 7, 1998
Electrically actuated dock leveler
UNITED DOMINION IND INC27 citations93
US5586356ADec 24, 1996
Automatic return to dock mechanism for mechanical dock leveler
UNITED DOMINION IND INC22 citations93
US5553343ASep 10, 1996
Dock leveler with folding barrier lip
UNITED DOMINION IND INC42 citations93
US5505575AApr 9, 1996
Pit mounted retractable vehicle restraint
UNITED DOMINION IND INC43 citations93
SERCO CORP
19 patentsUS5460460AOct 24, 1995
Scissors lift dock leveler
SERCO CORP80 citations96
US5459963AOct 24, 1995
Safety gate for loading docks
SERCO CORP94 citations96
US5313681AMay 24, 1994
Vertically storing dock leveler
SERCO CORP56 citations96
US5120181AJun 9, 1992
Vehicle restraint
SERCO CORP39 citations96
US5088143AFeb 18, 1992
Dock leveler lip actuation mechanism
SERCO CORP71 citations96
US5026242AJun 25, 1991
Automatic vehicle restraint
SERCO CORP58 citations96
US4988254AJan 29, 1991
Vehicle restraint
SERCO CORP56 citations96
US5396676AMar 14, 1995
Vertically storing dock leveler
SERCO CORP98 citations95
US5001799AMar 26, 1991
Seal carried by a vertically storing dock leveler
SERCO CORP60 citations95
US5454682AOct 3, 1995
Vehicle restraint
SERCO CORP29 citations93
US5346353ASep 13, 1994
Vehicle restraint
SERCO CORP26 citations93
US5336033AAug 9, 1994
Vehicle restraint
SERCO CORP30 citations93
US5303443AApr 19, 1994
Dock leveler hold-down system
SERCO CORP21 citations93
US5096359AMar 17, 1992
Vehicle restraint actuator
SERCO CORP33 citations93
US5071306ADec 10, 1991
Vehicle restraint
SERCO CORP46 citations93
US4977635ADec 18, 1990
Control circuit for vertically storing dock leveler
SERCO CORP26 citations93
US4974276ADec 4, 1990
Dock leveler hold-down with variable position safety legs
SERCO CORP33 citations93
US4937906AJul 3, 1990
Variable lip throw-out for dockboard
SERCO CORP36 citations93
US4928340AMay 29, 1990
Dock leveler
SERCO CORP45 citations93
4FRONT ENGINEERED SOLUTIONS IN
4 patentsUS7353558B2Apr 8, 2008
Vertically-storing dock leveler apparatus and method
4FRONT ENGINEERED SOLUTIONS IN38 citations95
US7657957B2Feb 9, 2010
Vertically-storing dock leveler apparatus and method
4FRONT ENGINEERED SOLUTIONS IN10 citations92
US7213286B2May 8, 2007
Vertically-storing dock leveler apparatus and method
4FRONT ENGINEERED SOLUTIONS IN17 citations92
US7162761B2Jan 16, 2007
Vertically-storing dock leveler apparatus and method
4FRONT ENGINEERED SOLUTIONS IN18 citations92
SPX CORP
3 patentsUS7165486B2Jan 23, 2007
Apparatus and method for hydraulically controlling a vehicle restraint
SPX CORP54 citations96
US7017220B2Mar 28, 2006
Spring counterbalance method and apparatus for variably biasing a dock leveler
SPX CORP26 citations93
US6951041B2Oct 4, 2005
Vertically-storing dock leveler apparatus and method
SPX CORP23 citations93
SPX DOCK PRODUCTS INC
2 patents4FRONT ENGINEERING SOLUTIONS I
1 patentMAXTOR CORP
1 patentShowing the top 50 of 92 patents by PatentIndex Score.