Inventor

HOCHGRAF CLARK G

US7 patents

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

GM GLOBAL TECH OPERATIONS INC

4 patents

US7968240B2Jun 28, 2011

System and method for shorting a fuel cell stack

GM GLOBAL TECH OPERATIONS INC2 citations60

US7421356B2Sep 2, 2008

Method and apparatus for measurement of fuel cell high frequency resistance in the presence of large undesirable signals

GM GLOBAL TECH OPERATIONS INC3 citations60

US7883809B2Feb 8, 2011

Rapid startup of a fuel cell power module using motor drive

GM GLOBAL TECH OPERATIONS INC2 citations58

US7972749B2Jul 5, 2011

Low voltage power tap on high voltage stack

GM GLOBAL TECH OPERATIONS INC0 citations38

GEN MOTORS CORP

1 patent

US7132191B2Nov 7, 2006

Addressing one MEA failure mode by controlling MEA catalyst layer overlap

GEN MOTORS CORP4 citations59

EDWARDS LEROY M

1 patent

US8486575B2Jul 16, 2013

Passive hydrogen vent for a fuel cell

EDWARDS LEROY M1 citations34

HOCHGRAF CLARK G

1 patent

US8828616B2Sep 9, 2014

Life extension of PEM fuel cell using startup method

HOCHGRAF CLARK G0 citations33