Hao ZHANG

Person

Twinsburg, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electric motor with integrated hydraulic pump and motor controller
- Patent number 11,788,529
- Issue date Oct 17, 2023
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Dual architecture for an electro-hydraulic drive system
- Patent number 11,788,256
- Issue date Oct 17, 2023
- Parker-Hannifin Corporation
- Dale Vanderlaan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Electro-hydraulic drive system for a machine
- Patent number 11,781,289
- Issue date Oct 10, 2023
- Parker-Hannifin Corporation
- Hao Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic gear pump with radial pressure compensator
- Patent number 11,680,564
- Issue date Jun 20, 2023
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hydraulic gear pump with axial compensation
- Patent number 11,680,567
- Issue date Jun 20, 2023
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hydraulic gear pump with radial pressure compensator
- Patent number 11,506,200
- Issue date Nov 22, 2022
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hydraulic hybrid swing drive system for excavators
- Patent number 11,421,713
- Issue date Aug 23, 2022
- Parker-Hannifin Corporation
- Jeff Cullman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Boom potential energy recovery of hydraulic excavator
- Patent number 11,225,776
- Issue date Jan 18, 2022
- Parker-Hannifin Corporation
- Nicholas N. White
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Boom potential energy recovery of hydraulic excavator
- Patent number 10,941,542
- Issue date Mar 9, 2021
- Parker-Hannifin Corporation
- Nicholas N. White
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Adaptive hybrid wireless power generation using piezoelectric eleme...
- Patent number 10,819,252
- Issue date Oct 27, 2020
- Parker-Hannifin Corporation
- Jeff Cullman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Boom potential energy recovery of hydraulic excavator
- Patent number 10,815,646
- Issue date Oct 27, 2020
- Parker-Hannifin Corporation
- Nicholas N. White
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Boom potential energy recovery of hydraulic excavator
- Patent number 10,358,797
- Issue date Jul 23, 2019
- Parker-Hannifin Corporation
- Nicholas N. White
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Power efficiency control mechanism for a working machine
- Patent number 10,160,439
- Issue date Dec 25, 2018
- Parker-Hannifin Corporation
- Hao Zhang
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic hybrid swing drive system for excavators
- Patent number 10,024,341
- Issue date Jul 17, 2018
- Parker-Hannifin Corporation
- Hao Zhang
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic hybrid swing drive system for excavators
- Patent number 9,926,946
- Issue date Mar 27, 2018
- Parker-Hannifin Corporation
- Jeff Cullman
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic hybrid swing drive system for excavators
- Patent number 9,879,403
- Issue date Jan 30, 2018
- Parker-Hannifin Corporation
- Nicholas N. White
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Auxiliary power module
- Patent number 9,641,047
- Issue date May 2, 2017
- Parker Hannifan Corporation
- Raymond E. Collett
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic unit
- Patent number D745112
- Issue date Dec 8, 2015
- Parker-Hannifin Corporation
- Clyde B Stevens
- D23 - Environmental heating and cooling
Information Patent Grant
Hydraulic power split engine with enhanced torque assist
- Patent number 8,827,853
- Issue date Sep 9, 2014
- Parker-Hannifin Corporation
- Blake A. Carl
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Multiple gear motor drive
- Patent number 8,596,165
- Issue date Dec 3, 2013
- Parker-Hannifin Corporation
- Joseph A. Kovach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Gear box for hydraulic energy recovery
- Patent number 8,490,739
- Issue date Jul 23, 2013
- Parker-Hannifin Corporation
- Joseph A. Kovach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Gear box for hydraulic energy recovery
- Patent number 7,597,172
- Issue date Oct 6, 2009
- Parker-Hannifin Corporation
- Joseph A. Kovach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL LOADER
- Publication number 20240425104
- Publication date Dec 26, 2024
- Parker-Hannifin Corporation
- Hao Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Integrated Assembly of an Electric Motor, Hydraulic Pump, and Elect...
- Publication number 20240410402
- Publication date Dec 12, 2024
- Parker-Hannifin Corporation
- Hao Zhang
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
Hydraulic Gear Pump with Hydrostatic Shaft Bearing and Isolated Cas...
- Publication number 20240309867
- Publication date Sep 19, 2024
- Parker-Hannifin Corporation
- Dale E. Vanderlaan
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Assemblies for a Hydraulic Gear Pump with Force Balance and Interna...
- Publication number 20240183354
- Publication date Jun 6, 2024
- Parker-Hannifin Corporation
- Satish Kumar Raju Kalidindi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Systems and Assemblies for an Electric Motor with Integrated Hydrau...
- Publication number 20230383748
- Publication date Nov 30, 2023
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Dual Architecture for an Electro-Hydraulic Drive System
- Publication number 20220282458
- Publication date Sep 8, 2022
- Parker-Hannifin Corporation
- Dale Vanderlaan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Electro-Hydraulic Drive System for a Machine
- Publication number 20220259828
- Publication date Aug 18, 2022
- Parker-Hannifin Corporation
- Hao Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Electric Motor with Integrated Hydraulic Pump and Motor Controller
- Publication number 20220128052
- Publication date Apr 28, 2022
- Parker-Hannifin Corporation
- Hao Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL LOADER
- Publication number 20210309287
- Publication date Oct 7, 2021
- Parker-Hannifin Corporation
- Hao Zhang
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR
- Publication number 20210148087
- Publication date May 20, 2021
- Parker-Hannifin Corporation
- Nicholas N. WHITE
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR
- Publication number 20210002864
- Publication date Jan 7, 2021
- Parker-Hannifin Corporation
- Nicholas N. WHITE
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
ADAPTIVE HYBRID WIRELESS POWER GENERATION USING PIEZOELECTRIC ELEME...
- Publication number 20200067428
- Publication date Feb 27, 2020
- Parker-Hannifin Corporation
- Jeff Cullman
- G01 - MEASURING TESTING
Information Patent Application
BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR
- Publication number 20190292752
- Publication date Sep 26, 2019
- Parker-Hannifin Corporation
- Nicholas N. WHITE
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR
- Publication number 20180216317
- Publication date Aug 2, 2018
- Parker-Hannifin Corporation
- Nicholas N. WHITE
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS
- Publication number 20180209449
- Publication date Jul 26, 2018
- Parker-Hannifin Corporation
- Jeff Cullman
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL
- Publication number 20170274930
- Publication date Sep 28, 2017
- Parker-Hannifin Corporation
- Hao Zhang
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
POWER EFFICIENCY CONTROL MECHANISM FOR A WORKING MACHINE
- Publication number 20170129473
- Publication date May 11, 2017
- Parker-Hannifin Corporation
- Hao ZHANG
- B60 - VEHICLES IN GENERAL
Information Patent Application
OVERSHOOT REDUCTION ON PUMP CONTROLS
- Publication number 20160146202
- Publication date May 26, 2016
- Parker-Hannifin Corporation
- Hao ZHANG
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HYDROSTATIC-PARALLEL HYDRAULIC HYBRID ARCHITECTURES
- Publication number 20160114668
- Publication date Apr 28, 2016
- Parker-Hannifin Corporation
- Hao ZHANG
- B60 - VEHICLES IN GENERAL
Information Patent Application
HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS
- Publication number 20160010663
- Publication date Jan 14, 2016
- Parker-Hannifin Corporation
- Hao Zhang
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
GAS COMPRESSOR
- Publication number 20150361970
- Publication date Dec 17, 2015
- Parker-Hannifin Corporation ("Parker")
- Nicholas N. White
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS
- Publication number 20140373522
- Publication date Dec 25, 2014
- Jeff Cullman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HYDRAULIC POWER SPLIT ENGINE WITH ENHANCED TORQUE ASSIST
- Publication number 20130121805
- Publication date May 16, 2013
- Parker-Hannifin Corporation
- Blake A. Carl
- B60 - VEHICLES IN GENERAL
Information Patent Application
GEAR BOX FOR HYDRAULIC ENERGY RECOVERY
- Publication number 20100018194
- Publication date Jan 28, 2010
- Joseph A. Kovach
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
MULTIPLE GEAR MOTOR DRIVE
- Publication number 20080113838
- Publication date May 15, 2008
- Joseph A. Kovach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Person

Patents Grantslast 30 patents

Electric motor with integrated hydraulic pump and motor controller

Dual architecture for an electro-hydraulic drive system

Electro-hydraulic drive system for a machine

Hydraulic gear pump with radial pressure compensator

Hydraulic gear pump with axial compensation

Hydraulic gear pump with radial pressure compensator

Hydraulic hybrid swing drive system for excavators

Boom potential energy recovery of hydraulic excavator

Boom potential energy recovery of hydraulic excavator

Adaptive hybrid wireless power generation using piezoelectric eleme...

Boom potential energy recovery of hydraulic excavator

Boom potential energy recovery of hydraulic excavator

Power efficiency control mechanism for a working machine

Hydraulic hybrid swing drive system for excavators

Hydraulic hybrid swing drive system for excavators

Hydraulic hybrid swing drive system for excavators

Auxiliary power module

Hydraulic unit

Hydraulic power split engine with enhanced torque assist

Multiple gear motor drive

Gear box for hydraulic energy recovery

Gear box for hydraulic energy recovery

Patents Applicationslast 30 patents

SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL LOADER

Integrated Assembly of an Electric Motor, Hydraulic Pump, and Elect...

Hydraulic Gear Pump with Hydrostatic Shaft Bearing and Isolated Cas...

Assemblies for a Hydraulic Gear Pump with Force Balance and Interna...

Systems and Assemblies for an Electric Motor with Integrated Hydrau...

Dual Architecture for an Electro-Hydraulic Drive System

Electro-Hydraulic Drive System for a Machine

Electric Motor with Integrated Hydraulic Pump and Motor Controller

SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL LOADER

BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR

BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR

ADAPTIVE HYBRID WIRELESS POWER GENERATION USING PIEZOELECTRIC ELEME...

BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR

BOOM POTENTIAL ENERGY RECOVERY OF HYDRAULIC EXCAVATOR

HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

SYSTEM ARCHITECTURES FOR STEERING AND WORK FUNCTIONS IN A WHEEL

POWER EFFICIENCY CONTROL MECHANISM FOR A WORKING MACHINE

OVERSHOOT REDUCTION ON PUMP CONTROLS

HYDROSTATIC-PARALLEL HYDRAULIC HYBRID ARCHITECTURES

HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

GAS COMPRESSOR

HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

HYDRAULIC POWER SPLIT ENGINE WITH ENHANCED TORQUE ASSIST

GEAR BOX FOR HYDRAULIC ENERGY RECOVERY

MULTIPLE GEAR MOTOR DRIVE