DC

Douglas A. Carlson

Caterpillar: 10 patents #570 of 8,398Top 7%
Overall (All Time): #515,995 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8801571 Machine powertrain and method Sairam Gopalan Velamakanni, Aaron Y. Ho, Catrina Swan, Warren Pepper 2014-08-12
8500599 Machine powertrain and method Aaron Y. Ho, Catrina Swan, Warren Pepper, Sairam Gopalan Velamakanni 2013-08-06
7246001 Method for controlling the ground speed of a work machine Michael D. Anderson, Michael D. Betz, Stephen C. Garnett 2007-07-17
6757604 Method and apparatus for determining torque at desired locations on a machine Todd D. Creger, Wayne Ferrell, Javad Hosseini, Kenneth P. Liesener, Sri K. Rangarajan 2004-06-29
6620077 Work machine having a drive train with an enhanced braking mode Scott Leman 2003-09-16
6226584 Method and apparatus for adaptively shifting a powershift transmission 2001-05-01
6199450 Method and apparatus Danish A. Hussain, Alan L. Stahl 2001-03-13
5846161 Control system for an automatic transmission having shift points based on part throttle positions which are used when engine speed is lowered below an adjustable minimum engine speed setting Javad Hosseini, Randall M. Mitchell, David L. Dickrell 1998-12-08
5806370 Method for modifying the shiftpoints of an automatic transmission Todd D. Creger, Jeffery Scott 1998-09-15
5568748 Method for modifying the shiftpoints of an automatic transmission Todd D. Creger 1996-10-29