Inventor · disambiguated record
Douglas H. Massey
Also filed as: MASSEY DOUGLAS H
16 granted patents·438 citations·filing 1987–2006
95Inventor score
Technology areasB65G
Top patents by PatentIndex Score
16 records- 0195US4815918AVehicle restraint having a snubbing restraining memberKELLEY CO INC·Filed 1987·Granted Mar 28, 1989·68 cites·18 claims
- 0288US6931686B2Support leg system and method for supporting a dock levelerSPX DOCK PRODUCTS INC·Filed 2003·Granted Aug 23, 2005·35 cites·22 claims
- 0388US5475888ALip lifting mechanism for a dock levelerKELLEY CO INC·Filed 1995·Granted Dec 19, 1995·51 cites·17 claims
- 0482US7225493B2Support leg system and method for supporting a dock levelerFRONT ENGINEERED SOLUTIONS INC·Filed 2006·Granted Jun 5, 2007·15 cites·26 claims
- 0582US6460212B2Dock leveler having an inflatable memberKELLEY CO INC·Filed 2001·Granted Oct 8, 2002·26 cites·10 claims
- 0681US7062813B2Support leg system and method for supporting a dock levelerSPX DOCK PRODUCTS INC·Filed 2003·Granted Jun 20, 2006·21 cites·14 claims
- 0780US6216303B1Dock leveler having an improved support leg mechanismKELLEY CO INC·Filed 1998·Granted Apr 17, 2001·34 cites·16 claims
- 0879US5522108ADock leveler having a ramp movable to a raised position by inflation of an inflatable member, with a filler for occupying volume within the inflatable memberKELLEY CO INC·Filed 1995·Granted Jun 4, 1996·36 cites·18 claims
- 0978US6842930B2Run-off guard for a dock levelerSPX DOCK PRODUCTS INC·Filed 2002·Granted Jan 18, 2005·23 cites·9 claims
- 1074US6918151B2Support leg system and method for supporting a dock levelerSPX DOCK PRODUCTS INC·Filed 2002·Granted Jul 19, 2005·18 cites·11 claims
- 1171US5802651ADock leveler with a movable ramp and an inflatable memberKELLEY CO INC·Filed 1996·Granted Sep 8, 1998·27 cites·18 claims
- 1264US5802650ADock leveler having an inflatable memberKELLEY CO INC·Filed 1995·Granted Sep 8, 1998·22 cites·11 claims
- 1362US5996156ADock leveler raised by deflating an inflatable memberKELLEY CO INC·Filed 1998·Granted Dec 7, 1999·19 cites·5 claims
- 1461US6113337AVehicle restraintKELLEY CO INC·Filed 1998·Granted Sep 5, 2000·19 cites·18 claims
- 1559US6643880B1Dock levelerKELLEY CO INC·Filed 2000·Granted Nov 11, 2003·10 cites·20 claims
- 1651US6371714B1Vehicle restraint and method for modifying the sameKELLEY CO INC·Filed 1998·Granted Apr 16, 2002·14 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →