by changing the driving speed

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CPC
F04B49/20

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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B49/00Control

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F04B49/20by changing the driving speed

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Patents Grantslast 30 patents

Information Patent Grant
Minimizing drivetrain damage from bad discharge valves on positive...
- Patent number 12,366,243
- Issue date Jul 22, 2025
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well pump control system and method
- Patent number 12,359,545
- Issue date Jul 15, 2025
- Unico, LLC
- Ronald G. Peterson
- G05 - CONTROLLING REGULATING
Information Patent Grant
Monitoring and controlling connected pool devices
- Patent number 12,359,456
- Issue date Jul 15, 2025
- Pentair Water Pool and Spa, Inc.
- Edward Brown
- G05 - CONTROLLING REGULATING
Information Patent Grant
Automatically controlling a power ramp rate of a motor of a pump sy...
- Patent number 12,345,144
- Issue date Jul 1, 2025
- Caterpillar Inc.
- Andy Publes
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method for actuating a hydraulic device
- Patent number 12,331,830
- Issue date Jun 17, 2025
- Schaeffler Technologies AG & Co. KG
- Yunfan Wei
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Normally-open valve assembly with variable speed fluid displacement
- Patent number 12,326,746
- Issue date Jun 10, 2025
- FLIGHT WORKS, INC.
- Christopher Bostwick
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Apparatus for controlling compressor, compressor and method for con...
- Patent number 12,326,146
- Issue date Jun 10, 2025
- LG Electronics Inc.
- Youngsung Kim
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Optimizing an efficiency of a positive displacement pump with a con...
- Patent number 12,313,057
- Issue date May 27, 2025
- SPM Oil & Gas Inc.
- Wesley P. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Needs-based cooling of a BEV
- Patent number 12,304,298
- Issue date May 20, 2025
- Audi AG
- Martin Hüttl
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Compressor system and method for operating a compressor system as a...
- Patent number 12,305,634
- Issue date May 20, 2025
- Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
- Marc-Oliver Herden
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method for controlling a hydraulic drive and hydraulic drive
- Patent number 12,297,828
- Issue date May 13, 2025
- Robert Bosch GmbH
- Henning Noack
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Electrical submersible pump control
- Patent number 12,297,823
- Issue date May 13, 2025
- SENSIA LLC
- Albert Hoefel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary compressor and air conditioner
- Patent number 12,292,044
- Issue date May 6, 2025
- Daikin Industries, Ltd.
- Hiromichi Ueno
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Electronically controlled hydraulic decanter centrifuge
- Patent number 12,280,382
- Issue date Apr 22, 2025
- Elgin Separation Solutions Industrials, LLC
- Michael Rai Anderson
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Grant
Bluetooth communication protocol for a pressure controller
- Patent number 12,274,451
- Issue date Apr 15, 2025
- Vasper Systems, LLC
- Jay A. Chesavage
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Apparatus for optimal loadsharing between parallel gas compressors
- Patent number 12,258,973
- Issue date Mar 25, 2025
- Khalifa University of Science and Technology
- Khalifa Al Hosani
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable speed pumping system and method
- Patent number 12,253,087
- Issue date Mar 18, 2025
- Pentair Water Pool and Spa, Inc.
- James Miller
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Artificial lift system with under pumping mitigation
- Patent number 12,241,348
- Issue date Mar 4, 2025
- Ravdos Holdings, Inc.
- Peter Westerkamp
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of diagnosing abnormality of sensorless control of motor for...
- Patent number 12,215,683
- Issue date Feb 4, 2025
- Hyundai Motor Company
- Min Su Kang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
System for pumping hydraulic fracturing fluid using electric pumps
- Patent number 12,209,490
- Issue date Jan 28, 2025
- U.S. Well Services, LLC
- Joel N. Broussard
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Demand based hydraulic pump control system
- Patent number 12,196,195
- Issue date Jan 14, 2025
- Deere & Company
- Jeffrey L. Lubben
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hydraulic arrangement for an apparatus for deblocking workpieces, i...
- Patent number 12,186,853
- Issue date Jan 7, 2025
- Satisloh AG
- Holger Schäfer
- B08 - CLEANING
Information Patent Grant
Hydraulic pump system
- Patent number 12,180,948
- Issue date Dec 31, 2024
- J.C. Bamford Excavators Limited
- James Hewitt
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Input/output calibration of pump
- Patent number 12,135,023
- Issue date Nov 5, 2024
- Blue-White Industries, Ltd.
- Patrick Michael Murphy
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Controlling a discharge pressure from a pump
- Patent number 12,129,845
- Issue date Oct 29, 2024
- Caterpillar Inc.
- Mark Francis Grimes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vacuum pumping
- Patent number 12,129,841
- Issue date Oct 29, 2024
- Edwards Limited
- Gerald Robin Shelley
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
System and method to auto-pressurize prior to dispense in a circula...
- Patent number 12,122,068
- Issue date Oct 22, 2024
- Graco Minnesota Inc.
- Christopher R. Blackson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Long-stroke pumping unit
- Patent number 12,116,992
- Issue date Oct 15, 2024
- Weatherford Technology Holdings, LLC
- Clark E. Robison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Piston compressor
- Patent number 12,110,883
- Issue date Oct 8, 2024
- Atlas Copco Airpower, naamloze vennootschap
- Bjorn Verrelst
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Electrically operated displacement pump control system and method
- Patent number 12,092,090
- Issue date Sep 17, 2024
- Graco Minnesota Inc.
- Bradley H. Hines
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
POWER TRANSMISSION SYSTEM AND TURBINE FRACTURING DEVICE HAVING SAME
- Publication number 20250237202
- Publication date Jul 24, 2025
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Rikui ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
ELECTRIC PUMP SYSTEM
- Publication number 20250215872
- Publication date Jul 3, 2025
- KYB Corporation
- Tsuyoshi HIRONAKA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
FLUID DELIVERY SYSTEMS PID AUTOTUNING
- Publication number 20250207580
- Publication date Jun 26, 2025
- Schneider Toshiba Inverter Europe SAS
- Kamal Ejjabraoui
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Artificial Lift System With Under Pumping Mitigation
- Publication number 20250198264
- Publication date Jun 19, 2025
- Ravdos Holdings Inc.
- Peter WESTERKAMP
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
WELL PUMP CONTROL SYSTEM AND METHOD
- Publication number 20250198263
- Publication date Jun 19, 2025
- Unico, LLC
- Ronald G. Peterson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SYSTEM FOR CONTROLLING A FLUID CIRCULATION PUMP AND IONIZER
- Publication number 20250180007
- Publication date Jun 5, 2025
- Mitch Saccoccio
- E04 - BUILDING
Information Patent Application
VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS
- Publication number 20250180008
- Publication date Jun 5, 2025
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Application
Method To Smooth Pump Rate While Fracturing
- Publication number 20250180006
- Publication date Jun 5, 2025
- Halliburton Energy Services, Inc.
- Zhijie Sun
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOOD PRESSURE MEASUREMENT DEVICE WITH A MEMS PUMP AND CONTROL METH...
- Publication number 20250152024
- Publication date May 15, 2025
- Microlife Corporation
- Chia-Ming LIN
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS
- Publication number 20250154946
- Publication date May 15, 2025
- Halliburton Energy Services, Inc.
- Stanley Vernon Stephenson
- E21 - EARTH DRILLING MINING
Information Patent Application
HYDRAULIC SYSTEM FOR A VEHICLE, SUCH AS AN AIRCRAFT
- Publication number 20250084842
- Publication date Mar 13, 2025
- AIRBUS OPERATIONS GMBH
- Martin HAMM
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
CRYOPUMP SYSTEM
- Publication number 20250075690
- Publication date Mar 6, 2025
- CRYO H&I, INC
- Kwang Jin OH
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
BOOSTER PUMP CONTROLLER AND METHOD OF USE
- Publication number 20250067259
- Publication date Feb 27, 2025
- Tigerflow Systems, LLC
- Mark Marvin Martinez
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
CABLE STRINGING ASSEMBLY HAVING ELECTRIC AIR MOVING DEVICE AND METH...
- Publication number 20250020118
- Publication date Jan 16, 2025
- Sherman + Reilly, Inc.
- Douglas Bruce MacDonald
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
LONG-STROKE PUMPING UNIT
- Publication number 20250012268
- Publication date Jan 9, 2025
- Weatherford Technology Holdings, LLC.
- Clark E. ROBISON
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SIDE LOAD CONTROL OF LONG STROKE SYSTEMS
- Publication number 20240426325
- Publication date Dec 26, 2024
- Hydrog Inc.
- Alexis Arteaga
- G08 - SIGNALLING
Information Patent Application
ROTARY COMPRESSOR AND AIR CONDITIONER
- Publication number 20240410349
- Publication date Dec 12, 2024
- Daikin Industries, Ltd.
- Hiromichi UENO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
FRACTURING APPARATUS AND VIBRATION REDUCTION METHOD THEREOF
- Publication number 20240401585
- Publication date Dec 5, 2024
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Shanwu FU
- E21 - EARTH DRILLING MINING
Information Patent Application
HYBRID POWERTRAIN FOR A PUMP SYSTEM
- Publication number 20240360747
- Publication date Oct 31, 2024
- Caterpillar Inc.
- Todd Ryan KABRICH
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SWITCHGEAR LOAD SHARING FOR OIL FIELD EQUIPMENT
- Publication number 20240356314
- Publication date Oct 24, 2024
- U.S. Well Services, LLC
- Jared Oehring
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
METHODS AND SYSTEMS FOR OPERATING A FLEET OF PUMPS
- Publication number 20240344440
- Publication date Oct 17, 2024
- BJ Energy Solutions, LLC
- Tony YEUNG
- E21 - EARTH DRILLING MINING
Information Patent Application
Universal Mount For A Variable Speed Pump Drive User Interface
- Publication number 20240344514
- Publication date Oct 17, 2024
- Hayward Industries, Inc.
- Gary Ortiz
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERING
- Publication number 20240309864
- Publication date Sep 19, 2024
- DOSATRON INTERNATIONAL
- Thibault MARION
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Hydraulic Fracturing Equipment With Non-Hydraulic Power
- Publication number 20240301780
- Publication date Sep 12, 2024
- U.S. Well Services, LLC
- Brandon N. Hinderliter
- E21 - EARTH DRILLING MINING
Information Patent Application
Multi-Plunger Pumps and Associated Drive Systems
- Publication number 20240288051
- Publication date Aug 29, 2024
- U.S. Well Services Holdings, LLC
- Jared Oehring
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEM FOR PUMPING HYDRAULIC FRACTURING FLUID USING ELECTRIC PUMPS
- Publication number 20240287885
- Publication date Aug 29, 2024
- U.S. Well Services, LLC
- Joel N. BROUSSARD
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
WIRELINE POWER SUPPLY DURING ELECTRIC POWERED FRACTURING OPERATIONS
- Publication number 20240291405
- Publication date Aug 29, 2024
- U.S. Well Services, LLC
- Jared Oehring
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Hydraulic Fracturing Equipment With Non-Hydraulic Power
- Publication number 20240280009
- Publication date Aug 22, 2024
- U.S. Well Services, LLC
- Brandon N. Hinderliter
- E21 - EARTH DRILLING MINING
Information Patent Application
ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD
- Publication number 20240254978
- Publication date Aug 1, 2024
- Graco Minnesota Inc.
- Bradley H. Hines
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MICROFLUIDIC PUMP CONTROL
- Publication number 20240247651
- Publication date Jul 25, 2024
- LEE VENTUS LIMITED
- James Samuel BUMBY
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

by changing the driving speed

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Minimizing drivetrain damage from bad discharge valves on positive...

Well pump control system and method

Monitoring and controlling connected pool devices

Automatically controlling a power ramp rate of a motor of a pump sy...

Method for actuating a hydraulic device

Normally-open valve assembly with variable speed fluid displacement

Apparatus for controlling compressor, compressor and method for con...

Optimizing an efficiency of a positive displacement pump with a con...

Needs-based cooling of a BEV

Compressor system and method for operating a compressor system as a...

Method for controlling a hydraulic drive and hydraulic drive

Electrical submersible pump control

Rotary compressor and air conditioner

Electronically controlled hydraulic decanter centrifuge

Bluetooth communication protocol for a pressure controller

Apparatus for optimal loadsharing between parallel gas compressors

Variable speed pumping system and method

Artificial lift system with under pumping mitigation

Method of diagnosing abnormality of sensorless control of motor for...

System for pumping hydraulic fracturing fluid using electric pumps

Demand based hydraulic pump control system

Hydraulic arrangement for an apparatus for deblocking workpieces, i...

Hydraulic pump system

Input/output calibration of pump

Controlling a discharge pressure from a pump

Vacuum pumping

System and method to auto-pressurize prior to dispense in a circula...

Long-stroke pumping unit

Piston compressor

Electrically operated displacement pump control system and method

Patents Applicationslast 30 patents

POWER TRANSMISSION SYSTEM AND TURBINE FRACTURING DEVICE HAVING SAME

ELECTRIC PUMP SYSTEM

FLUID DELIVERY SYSTEMS PID AUTOTUNING

Artificial Lift System With Under Pumping Mitigation

WELL PUMP CONTROL SYSTEM AND METHOD

SYSTEM FOR CONTROLLING A FLUID CIRCULATION PUMP AND IONIZER

VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS

Method To Smooth Pump Rate While Fracturing

BLOOD PRESSURE MEASUREMENT DEVICE WITH A MEMS PUMP AND CONTROL METH...

VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONS

HYDRAULIC SYSTEM FOR A VEHICLE, SUCH AS AN AIRCRAFT

CRYOPUMP SYSTEM

BOOSTER PUMP CONTROLLER AND METHOD OF USE

CABLE STRINGING ASSEMBLY HAVING ELECTRIC AIR MOVING DEVICE AND METH...

LONG-STROKE PUMPING UNIT

SIDE LOAD CONTROL OF LONG STROKE SYSTEMS

ROTARY COMPRESSOR AND AIR CONDITIONER

FRACTURING APPARATUS AND VIBRATION REDUCTION METHOD THEREOF

HYBRID POWERTRAIN FOR A PUMP SYSTEM

SWITCHGEAR LOAD SHARING FOR OIL FIELD EQUIPMENT

METHODS AND SYSTEMS FOR OPERATING A FLEET OF PUMPS

Universal Mount For A Variable Speed Pump Drive User Interface

METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERING

Hydraulic Fracturing Equipment With Non-Hydraulic Power

Multi-Plunger Pumps and Associated Drive Systems

SYSTEM FOR PUMPING HYDRAULIC FRACTURING FLUID USING ELECTRIC PUMPS

WIRELINE POWER SUPPLY DURING ELECTRIC POWERED FRACTURING OPERATIONS

Hydraulic Fracturing Equipment With Non-Hydraulic Power

ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD

MICROFLUIDIC PUMP CONTROL