DM

Douglas H. Massey

KC Kelley Company: 11 patents #3 of 51Top 6%
SP Spx Dock Products: 4 patents #3 of 9Top 35%
4S 4Front Engineered Solutions: 1 patents #11 of 25Top 45%
📍 New Berlin, WI: #32 of 571 inventorsTop 6%
🗺 Wisconsin: #2,680 of 40,088 inventorsTop 7%
Overall (All Time): #301,680 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7225493 Support leg system and method for supporting a dock leveler Richard K. Hoofard, James C. Alexander, Michael M. Meichtry 2007-06-05
7062813 Support leg system and method for supporting a dock leveler Richard K. Hoofard, James C. Alexander, Michael M. Meichtry 2006-06-20
6931686 Support leg system and method for supporting a dock leveler Richard K. Hoofard, James C. Alexander 2005-08-23
6918151 Support leg system and method for supporting a dock leveler 2005-07-19
6842930 Run-off guard for a dock leveler Kim Duvernell, Michael M. Meichtry 2005-01-18
6643880 Dock leveler Kim Duvernell 2003-11-11
6460212 Dock leveler having an inflatable member Charles H. Hodges 2002-10-08
6371714 Vehicle restraint and method for modifying the same Jack L. Sherard 2002-04-16
6216303 Dock leveler having an improved support leg mechanism 2001-04-17
6113337 Vehicle restraint 2000-09-05
5996156 Dock leveler raised by deflating an inflatable member 1999-12-07
5802650 Dock leveler having an inflatable member Charles H. Hodges 1998-09-08
5802651 Dock leveler with a movable ramp and an inflatable member Bruce R. Winter 1998-09-08
5522108 Dock leveler having a ramp movable to a raised position by inflation of an inflatable member, with a filler for occupying volume within the inflatable member Bruce R. Winter 1996-06-04
5475888 Lip lifting mechanism for a dock leveler 1995-12-19
4815918 Vehicle restraint having a snubbing restraining member Mark A. Bennett 1989-03-28