Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DC

David C. Campbell

BDBlack & Decker: 67 patents #20 of 2,138Top 1%
MSMetasolv Software: 4 patents #1 of 9Top 15%
Motorola: 3 patents #3,303 of 12,470Top 30%
Oracle: 3 patents #4,017 of 14,854Top 30%
PEPico Electronics: 2 patents #2 of 4Top 50%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
FIFilmax: 1 patents #4 of 5Top 80%
Bel Air, MD: #2 of 482 inventorsTop 1%
Maryland: #73 of 35,612 inventorsTop 1%
Overall (All Time): #19,271 of 4,157,543Top 1%
87 Patents All Time

Issued Patents All Time

Showing 26–50 of 87 patents

Patent #TitleCo-InventorsDate
7971758 Caulk gun Louis A. Gibbons 2011-07-05
7966912 Ratcheting wrench Robert J. B. Hobden, Jamie S. Munn, Martin Heckmann, Corey D. MacTavish, William G. Harman, Jr. 2011-06-28
7886637 Multiple pin retention for universal socket Marco Alessandro Mattucci, Robert H. Gifford 2011-02-15
7824136 Drill driver with chuck-mounted drill accessories 2010-11-02
7810482 Tile cutting machine Robert H. Gifford, Marco Alessandro Mattucci 2010-10-12
7810483 Rail guide with bearings for tile saw Robert H. Gifford, Jason McRoberts, Brent A. Kuehne, Micah A. Coleman, Michael F. Cannaliato +1 more 2010-10-12
7669505 Pin lock pliers Robert H. Gifford 2010-03-02
7661486 Power tool with battery pack ejector Terry L. Turner 2010-02-16
7563061 Self-centering drill bit chuck Louis A. Gibbons 2009-07-21
7520512 Drill chuck Warren A. Ceroll, Daniel Puzio 2009-04-21
7475842 Tape measure utilizing mechanical decoupling of power tape extension feature for tape retraction 2009-01-13
7415777 Simple controller for a power operated tape measure Louis A. Gibbons, Gavin Ng 2008-08-26
7404696 Drill driver with chuck-mounted drill accessories 2008-07-29
7353619 Dual purpose light assembly Louis A. Gibbons 2008-04-08
7284339 Simple controller for a power operated tape measure Louis A. Gibbons, Gavin Ng 2007-10-23
7275663 Dispensing device using multiple gas cartridges Allen Brelsford 2007-10-02
7261220 Cordless DC caulk gun Daniel P. Valenti 2007-08-28
7243923 Centering drill chuck Louis A. Gibbons 2007-07-17
7232120 Quick clamping system for a workbench Robert H. Gifford, Louis A. Gibbons 2007-06-19
7188753 Pressure release connection and pneumatic dispensing device 2007-03-13
7185792 Dispensing device with rack and pinion drive for nozzle valve Louis A. Gibbons 2007-03-06
7174655 Dual purpose light for automatic tape measure Louis A. Gibbons 2007-02-13
D514912 Screw loader Louis A. Gibbons, Rod Muir, Aldo Balatti, John S. Roemer 2006-02-14
6996510 System and method for modeling communication networks John Reilly 2006-02-07
D514415 Automatic screwfeeder Louis A. Gibbons, Rod Muir, Aldo Balatti, John S. Roemer 2006-02-07