Assignee
WELDING SERVICES INC
US4 patents
Top patents by PatentIndex Score
US6013890AJan 11, 2000
Dual pass weld overlay method and apparatus
WELDING SERVICES INC53 citations91
US4716271ADec 29, 1987
Apparatus for positioning a tool with respect to a cylindrical work piece
WELDING SERVICES INC82 citations88
US4841123AJun 20, 1989
Automatic welding device
WELDING SERVICES INC49 citations85
US7560662B2Jul 14, 2009
Equipment and process for applying an external structural weld to piping and similarly shaped pressure boundary components
WELDING SERVICES INC6 citations46