Inventor
MADSEN MICHAEL D
US15 patents
⚠️ This page may combine multiple inventors who share the name “MADSEN MICHAEL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ILLINOIS TOOL WORKS
10 patentsUS5824990AOct 20, 1998
Power selection and protection circuit for inverter power supply
ILLINOIS TOOL WORKS85 citations95
US5710696AJan 20, 1998
Controllable converter power supply
ILLINOIS TOOL WORKS45 citations95
US5615095AMar 25, 1997
Method and apparatus for protecting an inverter power supply
ILLINOIS TOOL WORKS32 citations92
US9808881B2Nov 7, 2017
Method and apparatus for providing welding and auxiliary power
ILLINOIS TOOL WORKS3 citations72
US12539552B2Feb 3, 2026
Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage
ILLINOIS TOOL WORKS0 citations62
US11958141B2Apr 16, 2024
Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage
ILLINOIS TOOL WORKS0 citations62
US11745286B2Sep 5, 2023
Methods and apparatus to detect stray welding-type current
ILLINOIS TOOL WORKS0 citations61
US10875118B2Dec 29, 2020
Engine driven generator for providing welding power
ILLINOIS TOOL WORKS1 citations61
US10035212B2Jul 31, 2018
Method and apparatus for providing welding and auxiliary power
ILLINOIS TOOL WORKS0 citations51
US12306600B2May 20, 2025
Engine-driven power systems having load management prioritization
ILLINOIS TOOL WORKS0 citations40
GEISSLER STEVEN J
2 patentsUS9162310B2Oct 20, 2015
Enhanced power factor correction for welding and cutting power supplies
GEISSLER STEVEN J3 citations60
US9789559B2Oct 17, 2017
System and method for controlling multiple processes in a welding-type power source using a refined controller architecture
GEISSLER STEVEN J1 citations50