Lech; Richard J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lech; Richard J..The latest application filed is for "fluid control system for work vehicle".
- Lech; Richard J. - Burlington IA
- Lech; Richard J. - Lockport IL
- Lech; Richard J. - Hickory Hills IL
| Patent | Date |
|---|---|
| Fluid control system for work vehicle Grant 9,347,200 - Hennemann , et al. May 24, 2 | 2016-05-24 |
| Fluid Control System For Work Vehicle App 20130318957 - HENNEMANN; Matthew J. ; et al. | 2013-12-05 |
| Open center hydraulic system Grant 8,353,157 - Lech , et al. January 15, 2 | 2013-01-15 |
| Automatic over-center system Grant 8,142,132 - Lech , et al. March 27, 2 | 2012-03-27 |
| Multiple ratio steering for loader Grant 7,891,459 - Lech , et al. February 22, 2 | 2011-02-22 |
| Open center hydraulic system App 20110030363 - LECH; Richard J. ; et al. | 2011-02-10 |
| Automatic Over-center System App 20100172730 - LECH; Richard J. ; et al. | 2010-07-08 |
| Hydraulically cushioned backhoe boom bumper and travel limiter Grant 7,674,084 - Lech March 9, 2 | 2010-03-09 |
| Hydraulically Cushioned Backhoe Boom Bumper And Travel Limiter App 20080267755 - Lech; Richard J. | 2008-10-30 |
| Multiple Ratio Steering For Loader App 20080006468 - Lech; Richard J. ; et al. | 2008-01-10 |
| Work vehicle hydraulic system Grant 7,251,934 - Lech , et al. August 7, 2 | 2007-08-07 |
| Method of controlling a backhoe Grant 7,032,332 - Sharkness , et al. April 25, 2 | 2006-04-25 |
| Work vehicle hydraulic system App 20050210871 - Lech, Richard J. ; et al. | 2005-09-29 |
| Electronic control for swing damping Grant 6,941,687 - Sharkness , et al. September 13, 2 | 2005-09-13 |
| Hydraulic swing damping system Grant 6,886,278 - Sharkness , et al. May 3, 2 | 2005-05-03 |
| Hydraulic swing damping system App 20030230010 - Sharkness, Eric ; et al. | 2003-12-18 |
| Method of controlling a backhoe App 20030226292 - Sharkness, Eric ; et al. | 2003-12-11 |
| Hydraulic system for suppressing oscillation in heavy equipment Grant 6,647,721 - Heyne , et al. November 18, 2 | 2003-11-18 |
| Method for retrofitting a swing damping valve circuit to a work vehicle Grant 6,640,409 - Sharkness , et al. November 4, 2 | 2003-11-04 |
| Hydraulic system for suppressing oscillation in heavy equipment App 20030084663 - Heyne, Dennis ; et al. | 2003-05-08 |
| Electronic control for swing damping App 20030056405 - Sharkness, Eric ; et al. | 2003-03-27 |
| Method for retrofitting a swing damping valve circuit to a work vehicle App 20030056353 - Sharkness, Eric ; et al. | 2003-03-27 |
| System for reducing boom swing oscillation in a backhoe assembly Grant 6,532,738 - Sharkness , et al. March 18, 2 | 2003-03-18 |
| Hydraulic system and method for regulating pressure equalization to suppress oscillation in heavy equipment Grant 6,474,064 - Heyne , et al. November 5, 2 | 2002-11-05 |
| Ride control apparatus and method Grant 6,398,227 - Lech , et al. June 4, 2 | 2002-06-04 |
| System for reducing boom swing oscillation in a backhoe assembly App 20020038548 - Sharkness, Eric ; et al. | 2002-04-04 |
| Hydraulic fluid supply system Grant 6,128,900 - Atkins , et al. October 10, 2 | 2000-10-10 |
| Variable flow hydraulic system Grant 6,029,445 - Lech February 29, 2 | 2000-02-29 |
| Hydraulic system for backhoe Grant 5,471,908 - Lech December 5, 1 | 1995-12-05 |
| Hydraulic system for a backhoe apparatus Grant 5,413,452 - Lech , et al. May 9, 1 | 1995-05-09 |
| Auxiliary power steering system Grant 4,942,935 - Lech July 24, 1 | 1990-07-24 |
| Combined fixed and variable displacement pump system Grant 3,985,472 - Virtue , et al. October 12, 1 | 1976-10-12 |
| Variable volume dual pump circuit Grant 3,962,870 - Lech June 15, 1 | 1976-06-15 |
| Closed Center Hydraulic System Grant 3,750,405 - Lech , et al. August 7, 1 | 1973-08-07 |
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