Barber; Dennis R.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Barber; Dennis R..The latest application filed is for "hydraulic system having low speed operation".

Company Profile

0.12.8

Barber; Dennis R. - Plainfield IL
Barber; Dennis R. - Oconomowoc WI
Barber; Dennis R. - Pewaukee WI
Barber; Dennis R. - Waterloo IA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Hydraulic system having low speed operation Grant 9,366,272 - Bieker , et al. June 14, 2	2016-06-14
Hydraulic System Having Low Speed Operation App 20150040548 - Bieker; Susan E. ; et al.	2015-02-12
Configurable hydraulic system for agricultural tractor and implement combination Grant 7,434,392 - Barber October 14, 2	2008-10-14
Position feedback pilot valve actuator for a spool control valve Grant 7,422,033 - Barber September 9, 2	2008-09-09
Spool activated lock-out valve for a hydraulic actuator load check valve Grant 7,415,989 - Barber August 26, 2	2008-08-26
Spool activated lock-out valve for a hydraulic actuator load check valve App 20070144588 - Barber; Dennis R.	2007-06-28
Configurable hydraulic system for agricultural tractor and implement combination App 20060131040 - Barber; Dennis R.	2006-06-22
Position feedback pilot valve actuator for a spool control valve App 20060130914 - Barber; Dennis R.	2006-06-22
Hydraulic valve section with reduced bore distortion Grant 7,021,332 - Greenwood , et al. April 4, 2	2006-04-04
Hydraulic valve section with reduced bore distortion App 20050211320 - Greenwood, Jason ; et al.	2005-09-29
Hydraulic control valve assembly having dual directional spool valves with pilot operated check valves Grant 6,871,574 - Barber March 29, 2	2005-03-29
Hydraulic poppet valve with force feedback Grant 6,869,060 - Barber , et al. March 22, 2	2005-03-22
Hydraulic control valve assembly having dual directional spool valves with pilot operated check valves App 20040237768 - Barber, Dennis R.	2004-12-02
Hydraulic poppet valve with force feedback App 20040195532 - Barber, Dennis R. ; et al.	2004-10-07
Electrohydraulic control system for implement lift cylinders Grant 6,698,523 - Barber March 2, 2	2004-03-02
Electrohydraulic Control System For Implement Lift Cylinders App 20040016556 - Barber, Dennis R.	2004-01-29
Hydraulic control valve system with pressure compensated flow control Grant 6,318,079 - Barber November 20, 2	2001-11-20
Blade height control system for a motorized grader Grant 6,269,885 - Barber , et al. August 7, 2	2001-08-07
Agricultural depth control system including cross plumbed series cylinders Grant 4,967,851 - Barber November 6, 1	1990-11-06
Motor seal protector valve Grant 4,713,936 - Barber , et al. December 22, 1	1987-12-22

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.