Inventor
COOK DAVID J
US24 patents
⚠️ This page may combine multiple inventors who share the name “COOK DAVID J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYPERTHERM INC
12 patentsUS7659488B2Feb 9, 2010
Composite electrode for a plasma arc torch
HYPERTHERM INC39 citations95
US7375302B2May 20, 2008
Plasma arc torch having an electrode with internal passages
HYPERTHERM INC81 citations95
US6841754B2Jan 11, 2005
Composite electrode for a plasma arc torch
HYPERTHERM INC64 citations95
US6403915B1Jun 11, 2002
Electrode for a plasma arc torch having an enhanced cooling configuration
HYPERTHERM INC114 citations91
US9781816B2Oct 3, 2017
Interchangeable power contact for a plasma arc cutting system
HYPERTHERM INC13 citations83
US11850681B2Dec 26, 2023
Highly positioned laser processing nozzle
HYPERTHERM INC5 citations72
US10569360B2Feb 25, 2020
Highly positioned laser processing nozzle
HYPERTHERM INC6 citations71
US10549383B2Feb 4, 2020
Highly positioned laser processing nozzle
HYPERTHERM INC5 citations70
US12521818B2Jan 13, 2026
Highly positioned laser processing nozzle
HYPERTHERM INC0 citations59
US12575016B2Mar 10, 2026
Cartridge for a liquid-cooled plasma arc torch
HYPERTHERM INC0 citations57
US12245354B2Mar 4, 2025
Swirl control through electrode geometry
HYPERTHERM INC0 citations47
US10737347B2Aug 11, 2020
Thread connection for a torch system
HYPERTHERM INC0 citations39