Inventor
EHRHART PHILIP J
US35 patents
⚠️ This page may combine multiple inventors who share the name “EHRHART PHILIP J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CNH AMERICA LLC
17 patentsUS7603837B2Oct 20, 2009
Header height control system and apparatus
CNH AMERICA LLC40 citations92
US8001751B2Aug 23, 2011
Method for gradually relieving pressure in a hydraulic system utilizing reverse fluid flow through a pump of the system
CNH AMERICA LLC19 citations84
US7987656B2Aug 2, 2011
Header height control system and apparatus
CNH AMERICA LLC8 citations84
US7832189B1Nov 16, 2010
Apparatus to improve modular cutterbar connecting shaft spline durability
CNH AMERICA LLC10 citations84
US7730703B1Jun 8, 2010
Modular disc cutterbar
CNH AMERICA LLC15 citations84
US7669392B2Mar 2, 2010
Header height control system with flow divider capability
CNH AMERICA LLC16 citations84
US7973654B2Jul 5, 2011
Cutterbar failure detection system and method
CNH AMERICA LLC16 citations82
US7082361B2Jul 25, 2006
Electronic speed control system for farm machines
CNH AMERICA LLC12 citations82
US9101090B2Aug 11, 2015
Windrower autoguidance hydraulic steering interface
CNH AMERICA LLC15 citations81
US8997902B2Apr 7, 2015
Windrower steering system
CNH AMERICA LLC7 citations81
USD645479SSep 20, 2011
Mower disc
CNH AMERICA LLC8 citations81
US7730701B1Jun 8, 2010
Variable speed hydraulic conditioner drive
CNH AMERICA LLC17 citations80
US8356695B2Jan 22, 2013
Method and apparatus for oiling splines in a bevel gearbox
CNH AMERICA LLC7 citations75
US7277785B2Oct 2, 2007
Apparatus and method to calibrate a draper on an agricultural header on an agricultural windrower
CNH AMERICA LLC8 citations74
US7954309B2Jun 7, 2011
Apparatus to improve modular cutterbar connecting shaft spline durability
CNH AMERICA LLC3 citations62
US7980049B1Jul 19, 2011
Twin sheet vacuum formed covers for disc mower cutterbars
CNH AMERICA LLC5 citations59
US9096268B2Aug 4, 2015
Control group mounting relative to controlled hardware
CNH AMERICA LLC0 citations39
SPERRY CORP
6 patentsUS4531349AJul 30, 1985
Rotary cutter for disc mower-conditioner
SPERRY CORP41 citations92
US4216641AAug 12, 1980
Crop harvesting machine
SPERRY CORP50 citations92
US4567716AFeb 4, 1986
Full quadrant crop lifter for disc mower-conditioners
SPERRY CORP22 citations81
US4385484AMay 31, 1983
Pivotable shields for disc mower-conditioner
SPERRY CORP11 citations73
US4418517ADec 6, 1983
Actuating mechanism for harvester transport lock
SPERRY CORP19 citations70
US4418518ADec 6, 1983
Mechanism for spring loading a transport lock
SPERRY CORP19 citations69
NEW HOLLAND NORTH AMERICA INC
5 patentsUS6513311B1Feb 4, 2003
Automatic configuration of dual cutter mode windrowers
NEW HOLLAND NORTH AMERICA INC20 citations92
US6073431AJun 13, 2000
Self-propelled windrower
NEW HOLLAND NORTH AMERICA INC49 citations92
US5867970AFeb 9, 1999
Header lift system for harvesters
NEW HOLLAND NORTH AMERICA INC19 citations92
US6675563B1Jan 13, 2004
Disc cutterbar shear protection
NEW HOLLAND NORTH AMERICA INC24 citations91
US6239696B1May 29, 2001
Signal light system for agricultural equipment
NEW HOLLAND NORTH AMERICA INC11 citations74