Inventor

KARRAKER DOUGLAS W

US4 patents

⚠️ This page may combine multiple inventors who share the name “KARRAKER DOUGLAS W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ABB AUTOMATION INC

2 patents

US6448735B1Sep 10, 2002

Controller for a wound rotor slip ring induction machine

ABB AUTOMATION INC87 citations94

US6741059B2May 25, 2004

Controller for a wound rotor slip ring induction machine

ABB AUTOMATION INC47 citations93

(unassigned)

1 patent

US5623219AApr 22, 1997

Maximal voltage three-phase PWM without third harmonic injection

15 citations68

GOKHALE KALYAN P

1 patent

US8653823B2Feb 18, 2014

Detection of welded switch contacts in a line converter system

GOKHALE KALYAN P1 citations39