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 51–75 of 87 patents

Patent #TitleCo-InventorsDate
D513468 Automatic screwfeeder head Louis A. Gibbons, Rod Muir, Aldo Balatti, John S. Roemer 2006-01-10
6983385 Configurable baseboard to power a mezzanine card and method Mark German, Daniel R. Kibel 2006-01-03
D512892 Automatic screwfeeder head Louis A. Gibbons, Rod Muir, Aldo Balatti, John S. Roemer 2005-12-20
6945140 Automatic screwfeeder Louis A. Gibbons, Rod Muir, Aldo Balatti 2005-09-20
6935541 Caulk gun pressurizing system Louis A. Gibbons 2005-08-30
6892169 System and method for automatically designing communications circuits Brenda D. Dunn, Mark W. McGuire, Joseph Peterson, John Reilly, Mary Kim Westervelt 2005-05-10
6802044 System and method for designing diverse communications circuits Mary Kim Westervelt 2004-10-05
6729413 Power tool with battery pack ejector Terry L. Turner 2004-05-04
6691417 Pruner attachment apparatus for a power tool Angela Waldrop 2004-02-17
6643837 System and method for automatically designing communications circuits Brenda D. Dunn, Mark W. McGuire, Joseph Peterson, John Reilly, Mary Kim Westervelt 2003-11-04
6512188 Lockout mechanism for power tool Lynn E. Lentino, Gregory Scott Snider, Harry R. Hall 2003-01-28
6502316 Viewing window for circular saw guard Gale A. Heslop, Lynn E. Lentino, Michael R. Sell 2003-01-07
6484409 Pruner attachment apparatus for a power tool Angela Waldrop 2002-11-26
6476723 Insulating oil leak containment David McMahan Butler, Johnny James Clark 2002-11-05
6327168 Single-source or single-destination signal routing through identical electronics module 2001-12-04
6288350 Lockout mechanism for power tool Lynn E. Lentino, Gregory Scott Snider, Harry R. Hall 2001-09-11
6276064 Viewing window for saw guard and method of making same 2001-08-21
6237230 Viewing window for circular saw guard Gale A. Heslop, Lynn E. Lentino, Michael R. Sell 2001-05-29
6219922 Nozzle assembly for a power tool Gale A. Heslop, Lynn E. Lentino 2001-04-24
6094827 Viewing window lockout mechanism for power tool 2000-08-01
6091035 Lockout mechanism for power tool Lynn E. Lentino, Gregory Scott Snider, Harry R. Hall 2000-07-18
6042310 Bit attaching arrangement for power tool Gale A. Heslop 2000-03-28
6026576 Portable circular saw Richard Hurn, Judd Staples, Gregory W. Arnold 2000-02-22
5930903 Portable circular saw Richard Hurn, Judd Staples, Gregory W. Arnold 1999-08-03
5911482 Window assembly and lower saw guard Lynn E. Lentino, Gale A. Heslop 1999-06-15