Inventor
HUTCHISON RICHARD M
US45 patents
⚠️ This page may combine multiple inventors who share the name “HUTCHISON RICHARD M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ILLINOIS TOOL WORKS
33 patentsUS6559416B1May 6, 2003
Alternate current path for mig gun
ILLINOIS TOOL WORKS85 citations97
US6995338B2Feb 7, 2006
Method and apparatus for short circuit welding
ILLINOIS TOOL WORKS55 citations96
US6974932B2Dec 13, 2005
Method and apparatus for welding
ILLINOIS TOOL WORKS49 citations96
US6974931B2Dec 13, 2005
Method and apparatus for pulse and short circuit arc welding
ILLINOIS TOOL WORKS60 citations96
US6933466B2Aug 23, 2005
Method and apparatus for arc welding with wire heat control
ILLINOIS TOOL WORKS60 citations96
US6963048B2Nov 8, 2005
Method and apparatus for welding with mechanical arc control
ILLINOIS TOOL WORKS46 citations95
US7351933B2Apr 1, 2008
Method and apparatus for controlling a welding system
ILLINOIS TOOL WORKS53 citations94
US6969823B2Nov 29, 2005
Method and apparatus for controlling a welding system
ILLINOIS TOOL WORKS45 citations94
US6531684B2Mar 11, 2003
Method and apparatus for welding and control
ILLINOIS TOOL WORKS33 citations94
US7598474B2Oct 6, 2009
Method and apparatus for short arc welding
ILLINOIS TOOL WORKS17 citations92
US7335854B2Feb 26, 2008
Method and system of determining wire feed speed
ILLINOIS TOOL WORKS27 citations92
US7165707B2Jan 23, 2007
Method and apparatus for feeding wire to a welding arc
ILLINOIS TOOL WORKS25 citations92
US6710300B2Mar 23, 2004
Contact tip assembly for mig gun
ILLINOIS TOOL WORKS36 citations92
US7323658B2Jan 29, 2008
Method and apparatus for welding and control thereof
ILLINOIS TOOL WORKS12 citations90
US7102099B2Sep 5, 2006
Method and apparatus for feeding wire to a welding arc
ILLINOIS TOOL WORKS39 citations90
US6707002B2Mar 16, 2004
Method and apparatus for welding and control thereof
ILLINOIS TOOL WORKS13 citations90
US7138602B2Nov 21, 2006
Method and apparatus for welding with mechanical arc control
ILLINOIS TOOL WORKS11 citations83
US7364059B2Apr 29, 2008
Method and apparatus for feeding wire to a welding arc
ILLINOIS TOOL WORKS12 citations81
US5672963ASep 30, 1997
Variable induction control led transformer
ILLINOIS TOOL WORKS16 citations73
US6974933B2Dec 13, 2005
Method and apparatus for welding and control thereof
ILLINOIS TOOL WORKS5 citations71
US6344628B1Feb 5, 2002
CV background for welding
ILLINOIS TOOL WORKS9 citations68
US12350762B2Jul 8, 2025
Systems and methods for height control in laser metal deposition
ILLINOIS TOOL WORKS0 citations63
US7414222B2Aug 19, 2008
Method and apparatus for pulse and short circuit arc welding
ILLINOIS TOOL WORKS1 citations63
US6573475B2Jun 3, 2003
Welding power supply with output inductor
ILLINOIS TOOL WORKS3 citations63
US11383317B2Jul 12, 2022
Method and apparatus for welding with short clearing prediction
ILLINOIS TOOL WORKS0 citations62
US11117210B2Sep 14, 2021
Calculating output inductance of a weld secondary
ILLINOIS TOOL WORKS0 citations62
US10391576B2Aug 27, 2019
Calculating output inductance of a weld secondary
ILLINOIS TOOL WORKS1 citations62
US7329833B2Feb 12, 2008
System for improved high-frequency arc starting of a welding process
ILLINOIS TOOL WORKS2 citations62
US10562123B2Feb 18, 2020
Welding system with arc control
ILLINOIS TOOL WORKS1 citations59
US12275100B2Apr 15, 2025
Welding system with arc control
ILLINOIS TOOL WORKS0 citations56
US12465992B2Nov 11, 2025
Systems and methods for controlled arc and short phase time adjustment
ILLINOIS TOOL WORKS0 citations50
US12109657B2Oct 8, 2024
Systems and methods for controlling drive roll contact force in welding-type systems
ILLINOIS TOOL WORKS0 citations50
US12036630B2Jul 16, 2024
Systems and methods for controlling heat input during short-circuiting type welding processes
ILLINOIS TOOL WORKS0 citations50
SUNDSTRAND CORP
4 patentsUS5004407AApr 2, 1991
Method of scavenging air and oil and gear pump therefor
SUNDSTRAND CORP58 citations96
US5042630AAug 27, 1991
Constant speed drive gear motor differential
SUNDSTRAND CORP7 citations74
US4815930AMar 28, 1989
Cavitating centrifugal pump
SUNDSTRAND CORP14 citations74
US5014560AMay 14, 1991
Torque measuring apparatus
SUNDSTRAND CORP19 citations73