Assignee
MARTIN CHARLES
4 patents
Top patents by PatentIndex Score
US4382380AMay 10, 1983
Plant watering indicator
MARTIN CHARLES21 citations81
US5038133AAug 6, 1991
Simulated vehicle alarm
MARTIN CHARLES7 citations72
US9194154B2Nov 24, 2015
Portable shelter
MARTIN CHARLES3 citations61
US8020522B2Sep 20, 2011
Circuit and method for checking the impedance of electrodes and for controlling the intensity of an electric stimulus
MARTIN CHARLES1 citations49