MC

Mark Richard Christopher

Illinois Tool Works: 20 patents #113 of 4,258Top 3%
IW Illinois Took Works: 1 patents #1 of 12Top 9%
Overall (All Time): #189,791 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12378093 Wire spool rotation resistance adjusters and wire feed assemblies having adjustable wire spool rotation resistance Justin M. Durik, Connor Denis Uitenbroek 2025-08-05
12318873 Welding systems with a rolling support base having a brake Connor Denis Uitenbroek, Adam Richard Schmitz 2025-06-03
12134152 Welding wire feeder with tongue and groove feature 2024-11-05
11897059 Current limiting secondary contact John Walter Lundin 2024-02-13
11660695 Welding power supplies, wire feeders, and systems to measure a weld cable voltage drop Adam E. Anders, Brian A. Schwartz, Andrew D. Nelson 2023-05-30
D952735 Guitar pick 2022-05-24
10807183 Welding remote power supply connection John Walter Lundin, Troy Wilson, Tim Jay Reitmeyer 2020-10-20
10384294 Method and device for controlling current flow through a welding clamp Thomas Don Lahti, Jeffery R. Ihde, Gary A. Thyssen, Michael Todd Klegin, Timothy Jay Reitmeyer 2019-08-20
10315269 Welding wire feeder with tongue and groove feature 2019-06-11
9403234 Wire feeding systems and devices Brian Lee Ott, Michael P. Vandenberg 2016-08-02
9254984 Welding wire feeder with improved wire guide Nicholas A. Matiash 2016-02-09
9102000 Pushbutton wire guide holder for a welding wire feeder Nicholas A. Matiash 2015-08-11
9073139 Wire electrode drive pressure adjustment system and method Gerald Peter Piechowski 2015-07-07
8269143 Wire feed control assembly Jim Maynard, Jerry Piechowski 2012-09-18
7767934 Torch feed roll adjustment lever Jim Maynard, Jerry Piechowski 2010-08-03
7723644 Torch having multi-path gas delivery system Jim Maynard, Jerry Piechowski 2010-05-25
7465902 Wire feed control assembly Jim Maynard, Jerry Piechowski 2008-12-16
6933467 Method and apparatus for welding with a trigger hold L. Thomas Hayes, Kenneth C. Altekruse 2005-08-23
6809286 Shielding gas filter for welding apparatus Gerald Peter Piechowski 2004-10-26
6781095 Method and apparatus for welding with a trigger hold L. Thomas Hayes, Kenneth C. Altekruse 2004-08-24
6476355 Method and apparatus for welding with a trigger L. Thomas Hayes, Kenneth C. Altekruse 2002-11-05
6114657 Method and apparatus for welding with a trigger hold L. Thomas Hayes, Kenneth C. Altekruse 2000-09-05