Inventor
Hongliu Du
Inventor
Dunlap, IL, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids33%
F15BSystems acting by means of fluids in general17%
E02FDredging11%
F16HGearing7%
B60WConjoint control of vehicle sub-units of different type or different function4%
F03CPositive-displacement engines driven by liquids4%
G05DSystems for controlling or regulating non-electric variables4%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%
B60LPropulsion of electrically-propelled vehicles2%
B60TVehicle brake control systems or parts thereof2%
PatentTitleYear
10,323,384Active damping ride control system for attenuating oscillations in a hydraulic actuator of a machine201910,227,964Hydraulic pump port plate with variable area metering notch201910,145,396Energy recovery system and method for hydraulic tool20189,869,311'System for estimating a displacement of a pump'20189,534,616'System for estimating a sensor output'20179,404,516'System for estimating a sensor output'20168,935,009'Method and apparatus for controlling multiple variable displacement hydraulic pumps'20158,911,216'Method, apparatus, and computer-readable storage medium for controlling torque load of multiple variable displacement hydraulic pumps'20148,790,091'Pump having port plate pressure control'20148,635,941'Method and apparatus for controlling a pump'20148,596,057'Method and apparatus for controlling a variable displacement hydraulic pump'20138,500,587'Multiple-variator control for split power CVT and hydrostatic transmissions'20137,797,081'Feedback acceleration reduction for fluid supply valves'20107,536,856'System for controlling a power output'20097,493,205'Brake control system for an electric drive vehicle'20097,204,138'Hydraulic system health indicator'20077,130,721'Electrohydraulic control system'20067,043,975'Hydraulic system health indicator'20066,848,888'Sensor for a variable displacement pump'20056,848,254'Method and apparatus for controlling a hydraulic motor'20056,623,247'Method and apparatus for controlling a variable displacement hydraulic pump'20036,468,046'Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump'20026,375,433'Method and apparatus for controlling pump discharge pressure of a variable displacement hydraulic pump'20026,374,722'Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump'20026,068,428'Capsule train separation system for fluid capsule pipeline transporation'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2014Patents assigned to UNIV MISSOURI (2)· patent assignee history
2000Based in Columbia, MO, US· patent location history
2002–2019Patents assigned to CATERPILLAR INC (24)· patent assignee history
2002–2010Based in Dunlap, IL, US· patent location history
2013–2015Patents assigned to DU HONGLIU (6)· patent assignee history
2013–2019Based in Naperville, IL, US· patent location history
2014–2015Patents assigned to SULLIVAN PATRICK W (2)· patent assignee history
2014Patents assigned to MANRING NOAH D (1)· patent assignee history
2016–2017Based in Peoria, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR INC | 24 | 2002–2019 |
| DU HONGLIUself | 6 | 2013–2015 |
| SULLIVAN PATRICK W | 2 | 2014–2015 |
| UNIV MISSOURI | 2 | 2000–2014 |
| MANRING NOAH D | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dunlap, Illinois, US | 12 | 2002–2010 |
| Naperville, Illinois, US | 10 | 2013–2019 |
| Peoria, Illinois, US | 2 | 2016–2017 |
| Columbia, MO, US | 1 | 2000 |