Inventor

KOEHLER CHARLES J

US4 patents

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

EATON CORP

3 patents

US7043372B2May 9, 2006

Fluid condition monitoring using broad spectrum impedance spectroscopy

EATON CORP31 citations89

US6844745B1Jan 18, 2005

Method of determining the fluid condition of diesel engine lubricant during real time operation

EATON CORP33 citations89

US6839620B1Jan 4, 2005

Detecting soot during real time operation in diesel engine lubricant

EATON CORP14 citations82

UNIV MARQUETTE

1 patent

US5680055AOct 21, 1997

Method and apparatus to sense changes in the state of a resin bed

UNIV MARQUETTE14 citations68