Inventor
LECH RICHARD J
US28 patents
⚠️ This page may combine multiple inventors who share the name “LECH RICHARD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CASE CORP
12 patentsUS6029445AFeb 29, 2000
Variable flow hydraulic system
CASE CORP111 citations98
US6474064B1Nov 5, 2002
Hydraulic system and method for regulating pressure equalization to suppress oscillation in heavy equipment
CASE CORP26 citations92
US6354089B1Mar 12, 2002
Apparatus and method for cooling multiple fluids on a work vehicle
CASE CORP39 citations92
US5471908ADec 5, 1995
Hydraulic system for backhoe
CASE CORP41 citations92
US6532738B2Mar 18, 2003
System for reducing boom swing oscillation in a backhoe assembly
CASE CORP21 citations91
US5413452AMay 9, 1995
Hydraulic system for a backhoe apparatus
CASE CORP32 citations89
US5678469AOct 21, 1997
Creeper drive system
CASE CORP19 citations84
US6640409B2Nov 4, 2003
Method for retrofitting a swing damping valve circuit to a work vehicle
CASE CORP14 citations83
US6398227B1Jun 4, 2002
Ride control apparatus and method
CASE CORP10 citations72
US6260467B1Jul 17, 2001
Hydraulic circuit providing plural swing rates in an earthworking construction machine
CASE CORP10 citations70
US6267548B1Jul 31, 2001
Automatic over center system
CASE CORP6 citations60
US6128900AOct 10, 2000
Hydraulic fluid supply system
CASE CORP6 citations56
CNH AMERICA LLC
7 patentsUS7251934B2Aug 7, 2007
Work vehicle hydraulic system
CNH AMERICA LLC23 citations92
US6941687B2Sep 13, 2005
Electronic control for swing damping
CNH AMERICA LLC13 citations83
US7891459B2Feb 22, 2011
Multiple ratio steering for loader
CNH AMERICA LLC4 citations63
US7674084B2Mar 9, 2010
Hydraulically cushioned backhoe boom bumper and travel limiter
CNH AMERICA LLC2 citations63
US7032332B2Apr 25, 2006
Method of controlling a backhoe
CNH AMERICA LLC4 citations61
US6886278B2May 3, 2005
Hydraulic swing damping system
CNH AMERICA LLC1 citations61
US8353157B2Jan 15, 2013
Open center hydraulic system
CNH AMERICA LLC4 citations57
INT HARVESTER CO
4 patentsUS3985472AOct 12, 1976
Combined fixed and variable displacement pump system
INT HARVESTER CO64 citations93
US3962870AJun 15, 1976
Variable volume dual pump circuit
INT HARVESTER CO43 citations92
US4050478ASep 27, 1977
Combined fixed and variable displacement pump system
INT HARVESTER CO23 citations79
US4129148ADec 12, 1978
Clutch modulator
INT HARVESTER CO11 citations74