Assignee
UMAC INC
US10 patents
Top patents by PatentIndex Score
US4465309AAug 14, 1984
Connecting or repair device
UMAC INC45 citations90
US4394202AJul 19, 1983
Method for relining an underground gas line or the like without excavation
UMAC INC31 citations89
US5704391AJan 6, 1998
Gravity-operated gas shut-off valve
UMAC INC60 citations87
US5551476ASep 3, 1996
Balanced-flow gas safety valve
UMAC INC34 citations86
US4958657ASep 25, 1990
Gas supply safety device
UMAC INC41 citations81
US4549752AOct 29, 1985
Connector for tubular members
UMAC INC22 citations80
US4410391AOct 18, 1983
Apparatus for relining an underground gas line or the like without excavation
UMAC INC25 citations78
US7562668B2Jul 21, 2009
Excess flow valves
UMAC INC12 citations75
US6814101B2Nov 9, 2004
Excessive flow valve
UMAC INC18 citations70
US4295494AOct 20, 1981
Method and apparatus for plugging and cutting a gas line or the like without excavation
UMAC INC14 citations59