Stephen T. Eickhoff — 18 Patents at Hypertherm

Stephen T. Eickhoff has been granted 18 US patents while listed as an inventor at Hypertherm. The first was granted in 1999 and the most recent in April 2025. Stephen T. Eickhoff ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Stephen T. Eickhoff in Hanover, NH, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #	Title	Co-Inventors	Date
12280441	Swirl ring and contact element for a plasma arc torch cartridge	Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan +2 more	2025-04-22
11684995	Cost effective cartridge for a plasma arc torch	Yu Zhang, Zheng Duan, Garrett Quillia, Brett A. Hansen	2023-06-27
11432393	Cost effective cartridge for a plasma arc torch	Zheng Duan, Yu Zhang, Jesse A. Roberts, Eric Streit, Brandon Mason +1 more	2022-08-30
10912183	Swirl ring and contact element for a plasma arc torch cartridge	Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan +2 more	2021-02-02
10335888	Swirl ring and contact element for a plasma arc torch cartridge	Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan +2 more	2019-07-02
9908195	Plasma cutting system with efficient components	Jesse A. Roberts, Shreyansh Patel, Justin Gullotta, Qinghua Liu, Dennis M. Borowy +3 more	2018-03-06
9736918	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes	Jonathan Mather, Jesse A. Roberts	2017-08-15
8927895	Method and apparatus for sensing the length of a lead	Peter J. Twarog	2015-01-06
8624150	Adapter for a plasma arc torch	Richard Joseph Simek, Jonathan Mather, Peter J. Twarog	2014-01-07
8546718	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes	Jonathan Mather, Jesse A. Roberts	2013-10-01
8541712	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes	Jonathan Mather, Jesse A. Roberts	2013-09-24
8115136	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes	Jonathan Mather, Jesse A. Roberts	2012-02-14
8101882	Plasma torch electrode with improved insert configurations	Jonathan Mather, David J. Cook, David L. Bouthillier, John Sobr	2012-01-24
8035055	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes	Peter J. Twarog, Jonathan Mather, Jesse A. Roberts	2011-10-11
6852943	Strain relief mechanism for a plasma arc torch	Ronald E. Morris	2005-02-08
6472631	Strain relief mechanism for a plasma arc torch	Ronald E. Morris	2002-10-29
6084199	Plasma arc torch with vented flow nozzle retainer	Jon W. Lindsay, Michael W. Vandiver	2000-07-04
5886315	Blow forward contact start plasma arc torch with distributed nozzle support	Zhipeng Lu, Jon W. Lindsay, Michael F. Kornprobst	1999-03-23

Stephen T. Eickhoff — 18 Patents

Issued Patents All Time

Patent Widget