DC

David Campbell

MC Master Lock Company: 1 patents #117 of 208Top 60%
📍 Baltimore, MD: #998 of 4,923 inventorsTop 25%
🗺 Maryland: #8,004 of 35,612 inventorsTop 25%
Overall (All Time): #1,215,725 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9208964 Lockout device Matthew T. Dudgeon, Cecile Frot, Lloyd Fenn 2015-12-08
6208038 Electrical load management method and apparatus for a vessel 2001-03-27
5790399 Electrical load management method and apparatus for a vessel 1998-08-04
5148149 Differential delay intrusion detection sensory system Kenneth I. DeWitt 1992-09-15