Inventor
MA TIEJUN
CA16 patents
⚠️ This page may combine multiple inventors who share the name “MA TIEJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ILLINOIS TOOL WORKS
7 patentsUS8357877B2Jan 22, 2013
Front consumables for pulse GMAW torches
ILLINOIS TOOL WORKS17 citations83
US9193005B2Nov 24, 2015
Contact tip with contoured bore
ILLINOIS TOOL WORKS17 citations82
US8354614B2Jan 15, 2013
Method to monitor the life of the contact tip in robotic or automatic GMAW
ILLINOIS TOOL WORKS5 citations73
US11883915B2Jan 30, 2024
Rotating power connector for welding torch cables
ILLINOIS TOOL WORKS2 citations67
US12162103B2Dec 10, 2024
Systems and methods to monitor the life of a welding torch
ILLINOIS TOOL WORKS2 citations64
US8383987B2Feb 26, 2013
Welding contact tips for pulse applications
ILLINOIS TOOL WORKS2 citations62
US12491575B2Dec 9, 2025
Rotating power connector for welding torch cables
ILLINOIS TOOL WORKS0 citations57
MA TIEJUN
6 patentsUS8304693B2Nov 6, 2012
Refractory materials reinforced composites for the GMAW contact tips
MA TIEJUN24 citations91
US9162312B2Oct 20, 2015
High conductive drive roll assembly for push-pull MIG torch
MA TIEJUN22 citations89
US8936210B2Jan 20, 2015
Floating dispensing mechanism for drum packed welding wire
MA TIEJUN7 citations81
US8450646B2May 28, 2013
Retaining head and contact tip for controlling wire contour and contacting point for GMAW torches
MA TIEJUN8 citations80
US8710404B2Apr 29, 2014
Method and apparatus to maintain welding current to compensate for deterioration of welding contact tip
MA TIEJUN6 citations70
US9227270B2Jan 5, 2016
Method to monitor the life of the contact tip in GMAW-pulse
MA TIEJUN0 citations51