| 7805986 |
Portable vehicle exhaust flow sensor |
James W. Butler, Thomas Korniski |
2010-10-05 |
| 7568383 |
Portable vehicle exhaust flow sensor |
James W. Butler, Thomas Korniski |
2009-08-04 |
| 7197866 |
Control approach for use with dual mode oxygen sensor |
Jeffrey A. Cook, Richard E. Soltis, Jessy W. Grizzle |
2007-04-03 |
| 6781389 |
Conductivity sensor for detecting conductivity of a fluid |
Joseph C. Cassatta |
2004-08-24 |
| 6477886 |
Apparatus for measuring the amount of air entrained in a fluid |
Kenneth M. Junkins |
2002-11-12 |
| 5794596 |
Method and system for predictably controlling air/fuel ratio |
James W. Butler, Thomas Korniski |
1998-08-18 |
| 5531105 |
Method and system for determining engine oil consumption |
Dick Y. Leong, Keith R. Carduner |
1996-07-02 |
| 5456124 |
Probe for exhaust gas sampling |
— |
1995-10-10 |
| 5138163 |
Direct sampling of engine emissions for instantaneous analysis |
James W. Butler, Thomas Korniski |
1992-08-11 |
| 5129257 |
System for measuring engine exhaust constituents |
Keith R. Carduner, Dick Y. Leong |
1992-07-14 |
| 5117680 |
Method and control circuit for measuring trace constituents in automotive engine exhaust |
— |
1992-06-02 |
| 5106481 |
Linear air/fuel sensor |
James Stewart Rankin, II |
1992-04-21 |
| 5025220 |
Continuous measurement of the absolute conductivity of a liquid |
Daniel J. Graham, Joseph C. Cassatta |
1991-06-18 |
| 5014011 |
Capacitance measuring apparatus with means for nulling the resistive component |
— |
1991-05-07 |
| 4928015 |
Measuring multicomponent constituency of gas emission flow |
James W. Butler, Thomas Korniski |
1990-05-22 |
| 4801805 |
Method of measuring multicomponent constituency of gas emission flow |
James W. Butler, Paul D. Maker, Thomas Korniski |
1989-01-31 |
| 4751466 |
Instrument for on-line measurement of the absolute electrical conductivity of a liquid |
James W. Butler |
1988-06-14 |
| 4389881 |
Method of measuring an air to fuel ratio |
James W. Butler |
1983-06-28 |
| 4372155 |
Methods of monitoring a combustion system |
James W. Butler, Dennis Schuetzle |
1983-02-08 |
