Inventor · disambiguated record
Martin P. Hageman
Also filed as: HAGEMAN MARTIN P
20 granted patents·1 pending application·732 citations·filing 1984–2003
96Inventor score
Files withKELLEY CO INC20
Top patents by PatentIndex Score
21 records- 0196US4759678AVehicle restraint utilizing a fluid cylinderKELLEY CO INC·Filed 1986·Granted Jul 26, 1988·77 cites·19 claims
- 0295US4674941AVehicle restraint using a parallelogram linkageKELLEY CO INC·Filed 1985·Granted Jun 23, 1987·70 cites·12 claims
- 0392US4784567AVehicle restraint utilizing a fluid cylinderKELLEY CO INC·Filed 1987·Granted Nov 15, 1988·61 cites·9 claims
- 0491US4665579ACounterbalancing mechanism for an edge-of-dock dockboardKELLEY CO INC·Filed 1985·Granted May 19, 1987·67 cites·12 claims
- 0588US4767254AVehicle restraint having an upwardly biased restraining memberKELLEY CO INC·Filed 1986·Granted Aug 30, 1988·47 cites·9 claims
- 0687US6478525B2Wheel chocking device and method for using the sameKELLEY CO INC·Filed 2001·Granted Nov 12, 2002·30 cites·11 claims
- 0787US4619008ADockboard constructionKELLEY CO INC·Filed 1984·Granted Oct 28, 1986·38 cites·16 claims
- 0882US5205010AReturn-to-dock level mechanism for a hydraulic dockboardKELLEY CO INC·Filed 1991·Granted Apr 27, 1993·37 cites·12 claims
- 0981US6585211B1Wheel chocking device and method for using the sameKELLEY CO INC·Filed 1997·Granted Jul 1, 2003·33 cites·4 claims
- 1081US6250432B1Wheel chocking device and method for using the sameKELLEY CO INC·Filed 1997·Granted Jun 26, 2001·37 cites·34 claims
- 1180US6276496B1Wheel chocking deviceKELLEY CO INC·Filed 1998·Granted Aug 21, 2001·34 cites·22 claims
- 1277US4955923AHydraulically operated dockboardKELLEY CO INC·Filed 1990·Granted Sep 11, 1990·32 cites·10 claims
- 1377US4922568AHolddown mechanism for a dockboardKELLEY CO INC·Filed 1988·Granted May 8, 1990·28 cites·20 claims
- 1468US5600859ADock leveler in which the ramp is raised and lowered using an inflatable member and method of useKELLEY CO INC·Filed 1995·Granted Feb 11, 1997·27 cites·26 claims
- 1567US5927928AWheel chocking deviceKELLEY CO INC·Filed 1998·Granted Jul 27, 1999·24 cites·18 claims
- 1667US5416941ADockboard having an improved return-to-dock-level mechanismKELLEY CO INC·Filed 1991·Granted May 23, 1995·24 cites·12 claims
- 1763US5392481AReturn-to-dock-level mechanism for a dockboard having a hydraulic holddownKELLEY CO INC·Filed 1991·Granted Feb 28, 1995·21 cites·12 claims
- 1860US5522107ARetaining arrangement for an inflatable member in a dock levelerKELLEY CO INC·Filed 1995·Granted Jun 4, 1996·21 cites·15 claims
- 1956US5274867AHydraulically operated edge-of-dock levelerKELLEY CO INC·Filed 1991·Granted Jan 4, 1994·17 cites·8 claims
- 2041US5188015AAutomatically sequenced hydraulic cylinder mechanismKELLEY CO INC·Filed 1991·Granted Feb 23, 1993·7 cites·7 claims
- 2136US2003099528A1Wheel chocking device and method for using the sameFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →