Assignee
ELECTROMECHANICAL RESEARCH LAB
US8 patents
Top patents by PatentIndex Score
US5900546AMay 4, 1999
Liquid level indicator for storage tank
ELECTROMECHANICAL RESEARCH LAB37 citations92
US4580933AApr 8, 1986
Cutting tool accessory
ELECTROMECHANICAL RESEARCH LAB31 citations92
US5975104ANov 2, 1999
Ball valve seal replacement apparatus and method
ELECTROMECHANICAL RESEARCH LAB9 citations74
US5960823AOct 5, 1999
Tank vacuum limiter assembly
ELECTROMECHANICAL RESEARCH LAB14 citations74
US5284105AFeb 8, 1994
Sight glass assembly and wiper for cargo holds
ELECTROMECHANICAL RESEARCH LAB15 citations74
US5205311AApr 27, 1993
Compound lever controlled spill valve
ELECTROMECHANICAL RESEARCH LAB11 citations74
US5158104AOct 27, 1992
Pilot-operated spill valve assembly
ELECTROMECHANICAL RESEARCH LAB2 citations63
US4525931AJul 2, 1985
Gage assembly
ELECTROMECHANICAL RESEARCH LAB3 citations63