DS

Donald H. Stedman

EH Environmental Systems Products Holdings: 8 patents #1 of 36Top 3%
EH Envirotest Systems Holdings: 8 patents #1 of 33Top 4%
CS Colorado Seminary: 5 patents #1 of 33Top 4%
SI Sievers Instruments: 4 patents #4 of 14Top 30%
AT Ada Technologies: 1 patents #23 of 46Top 50%
University of Michigan: 1 patents #1,906 of 4,352Top 45%
SL Scintrex Limited: 1 patents #4 of 13Top 35%
SI Sensors Incorporated: 1 patents #52 of 100Top 55%
TC The International Nickel Company: 1 patents #28 of 58Top 50%
📍 Ann Arbor, MI: #205 of 6,071 inventorsTop 4%
🗺 Michigan: #1,963 of 86,293 inventorsTop 3%
Overall (All Time): #113,809 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDate
9057664 System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles 2015-06-16
8838396 Remote vehicle emissions sensing system and method for differentiating water from hydrocarbons Robert A. Gentala, Peter M. McClintock 2014-09-16
8447528 Remote vehicle emissions sensing system and method for differentiating water from hydrocarbons Robert A. Gentala, Peter M. McClintock 2013-05-21
8429957 System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles 2013-04-30
8347701 System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles 2013-01-08
8266952 System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles 2012-09-18
7930931 System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehicles 2011-04-26
7400398 Remote emissions sensing system and method incorporating spectral matching by data interpolation 2008-07-15
7359804 System and method for calibrating remote emissions sensing instruments Mitchell Williams 2008-04-15
7274994 Exhaust opacity measuring device Gary Bishop, Gary Full 2007-09-25
7164132 Multilane remote sensing device John DiDomenico, James H. Johnson, Gary Bishop, W. John Williams 2007-01-16
7016789 Exhaust opacity measuring device Gary Bishop, Gary Full 2006-03-21
6701256 Exhaust opacity measuring device Gary Bishop, Gary Full 2004-03-02
6671630 System and method for remote analysis of small engine vehicle emissions Gary Bishop 2003-12-30
6560545 System and method for remote analysis of small engine vehicle emissions Gary Bishop 2003-05-06
5935519 Apparatus for the detection of sulfur Richard L. Benner 1999-08-10
5702954 Method to detect phosphorus Patti A. Meeks 1997-12-30
5661036 Process for the detection of sulfur Richard L. Benner 1997-08-26
5498872 Apparatus for remote analysis of vehicle emissions Gary Bishop, Scott E. McLaren 1996-03-12
5489777 Apparatus for remote analysis of vehicle emissions using reflective thermography Gary Bishop 1996-02-06
5424217 Process for the detection of sulfur Richard L. Benner 1995-06-13
5401967 Apparatus for remote analysis of vehicle emissions Gary Bishop, Scott E. McLaren 1995-03-28
5371367 Remote sensor device for monitoring motor vehicle exhaust systems John DiDomenico, James H. Johnson, Kenneth W. Michaels, Dennis L. Smith 1994-12-06
5330714 Process and apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds Richard D. Godec, Neil Johansen 1994-07-19
5319199 Apparatus for remote analysis of vehicle emissions Gary Bishop 1994-06-07