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Patent applications and USPTO patent grants for Schiefer; Erich.The latest application filed is for "method for determining the particle count in the exhaust gas of internal combustion engines".
Patent | Date |
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Method For Determining The Particle Count In The Exhaust Gas Of Internal Combustion Engines App 20140311216 - Schiefer; Erich ;   et al. | 2014-10-23 |
Method For Automatically Operating A Measuring Device For Measuring Particles In Gases App 20130060485 - Unger; Erich ;   et al. | 2013-03-07 |
Measuring device, preferably a test stand for engines and vehicles for analyzing exhaust gases of a combustion engine Grant 7,637,144 - Hodzic , et al. December 29, 2 | 2009-12-29 |
Measuring Device, Preferably a Test Stand for Engines and Vehicles for Analyzing Exhaust Gases of a Combustion Engine App 20080022752 - Hodzic; Aden ;   et al. | 2008-01-31 |
Method for determining the characteristic properties of soot particles Grant 7,222,517 - Schiefer May 29, 2 | 2007-05-29 |
Method for determining the characteristic properties of soot particles App 20040244582 - Schiefer, Erich | 2004-12-09 |
Process and apparatus for measuring the opacity in gases Grant 6,570,655 - Schiefer , et al. May 27, 2 | 2003-05-27 |
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