Inventor
JOHNSON DOUGLAS RENE
US10 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON DOUGLAS RENE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEERE & CO
9 patentsUS8029401B2Oct 4, 2011
Split path power shift transmission
DEERE & CO26 citations91
US6485387B1Nov 26, 2002
Apparatus and method for determining the output speed of a hydrostatic unit in a hydro-mechanical transmission
DEERE & CO32 citations91
US6504474B1Jan 7, 2003
Method and apparatus for detecting a restricted or bypassed transmission oil filter
DEERE & CO33 citations89
US6440026B1Aug 27, 2002
Hydro-mechanical transmission
DEERE & CO42 citations89
US6935445B2Aug 30, 2005
Back-up steering system for track laying vehicles
DEERE & CO10 citations72
US6453668B1Sep 24, 2002
Transmission with cold start valve
DEERE & CO10 citations72
US6729454B2May 4, 2004
Transmission with a two-step actuator valve
DEERE & CO5 citations61
US7993230B2Aug 9, 2011
Dual path hydromechanical powertrain
DEERE & CO4 citations60
US6533694B1Mar 18, 2003
Hydro mechanical transmission planetary carrier support system
DEERE & CO5 citations60