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Patent applications and USPTO patent grants for Koehler; Charles J..The latest application filed is for "fluid condition monitoring using broad spectrum impedance spectroscopy".
Patent | Date |
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Fluid condition monitoring using broad spectrum impedance spectroscopy App 20060155485 - Koehler; Charles J. ;   et al. | 2006-07-13 |
Fluid condition monitoring using broad spectrum impedance spectroscopy Grant 7,043,372 - Koehler , et al. May 9, 2 | 2006-05-09 |
Fluid condition monitoring using broad spectrum impedance spectroscopy App 20050110503 - Koehler, Charles J. ;   et al. | 2005-05-26 |
Detecting Soot During Real Time Operation In Diesel Engine Lubricant App 20050021216 - Koehler, Charles J. ;   et al. | 2005-01-27 |
Method of determining the fluid condition of diesel engine lubricant during real time operation Grant 6,844,745 - Schachameyer , et al. January 18, 2 | 2005-01-18 |
Detecting soot during real time operation in diesel engine lubricant Grant 6,839,620 - Koehler , et al. January 4, 2 | 2005-01-04 |
Test socket with structural optical window App 20030058438 - Koehler, Charles J. | 2003-03-27 |
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