Machines or pumps with differential surface pistons

Industry

CPC
F04B5/00

This industry / category may be too specific. Please go to a parent level for more data

Industries

Patents Grantslast 30 patents

Information Patent Grant
Pressure regulator for engine lubrication system
- Patent number 12,326,103
- Issue date Jun 10, 2025
- Cummins Inc.
- Simon Tooley
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Fracturing apparatus and control method thereof, fracturing system
- Patent number 12,320,344
- Issue date Jun 3, 2025
- Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Jifeng Zhong
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid sample pump system
- Patent number 12,320,349
- Issue date Jun 3, 2025
- Mustang Sampling, LLC
- Timothy L. Querrey
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Slurry transfer device and slurry transfer method using the same
- Patent number 12,322,781
- Issue date Jun 3, 2025
- LG ENERGY SOLUTION, LTD.
- Chan Woo Park
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piston pump for brake system
- Patent number 12,319,255
- Issue date Jun 3, 2025
- Hyundai Mobis Co., Ltd.
- Young Chang Choi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Micro piston pump
- Patent number 12,320,341
- Issue date Jun 3, 2025
- INSULET CORPORATION
- Daniel Allis
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Linear drive assembly
- Patent number 12,320,409
- Issue date Jun 3, 2025
- Kerr Machine Co.
- Kelcy Jake Foster
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Intelligent controller for a reciprocating air compressor and metho...
- Patent number 12,320,347
- Issue date Jun 3, 2025
- WAK Devices, LLC
- Adam Thomas Walsh
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hydraulic pump performance deterioration detection system
- Patent number 12,313,097
- Issue date May 27, 2025
- Kawasaki Jukogyo Kabushiki Kaisha
- Akihiro Kondo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Piston pump for a high pressure cleaning device
- Patent number 12,313,047
- Issue date May 27, 2025
- Alfred Kärcher SE & Co. KG
- Robert Nathan
- B08 - CLEANING
Information Patent Grant
Pumping system
- Patent number 12,313,056
- Issue date May 27, 2025
- Razmik David Gharakhanian
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
High pressure water pump fluid end
- Patent number 12,313,063
- Issue date May 27, 2025
- NLB, Corp.
- Donald Anthony Wojciechowski
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Fluid end assembly
- Patent number 12,313,048
- Issue date May 27, 2025
- Kerr Machine Co.
- Micheal Cole Thomas
- E21 - EARTH DRILLING MINING
Information Patent Grant
Variable-speed integrated machine and wellsite apparatus
- Patent number 12,313,059
- Issue date May 27, 2025
- Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Shuzhen Cui
- E21 - EARTH DRILLING MINING
Information Patent Grant
Zeroing device
- Patent number 12,313,060
- Issue date May 27, 2025
- Dana Motion Systems Italia S.r.l.
- Luca Fontanesi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Fluid dispensing system having a piston rod and wear sleeve
- Patent number 12,313,061
- Issue date May 27, 2025
- Graco Minnesota Inc.
- Jeromy D. Horning
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Rubber balers
- Patent number RE50443
- Issue date May 27, 2025
- Karltex Machine, Inc.
- Sig Fragstein
Information Patent Grant
Development of a higher-level model for operation of a compressor s...
- Patent number 12,313,058
- Issue date May 27, 2025
- KAESER Kompressoren SE
- Florian Wagner
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Refrigerant compressor
- Patent number 12,313,062
- Issue date May 27, 2025
- Bitzer Kuehlmaschinenbau GmbH
- Axel Friedrich
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Valve stop for use with a fluid end assembly
- Patent number 12,313,167
- Issue date May 27, 2025
- BEST PUMP AND FLOW, LLC
- Katherine Goodnight Schaller
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Submersible hydraulic power units with interchangeable manifolds
- Patent number 12,305,670
- Issue date May 20, 2025
- KTI Hydraulics Inc.
- Chun Nien King
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Crankshaft, compressor, and refrigeration device
- Patent number 12,305,627
- Issue date May 20, 2025
- ANHUI MEIZHI COMPRESSOR CO., LTD.
- Chengcheng Wang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Packing seal assembly
- Patent number 12,305,628
- Issue date May 20, 2025
- Kerr Machine Co.
- Christopher Todd Barnett
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Liquid dispenser
- Patent number 12,305,625
- Issue date May 20, 2025
- Fast & Fluid Management B.V.
- Marcel Hendrikus Petrus Engels
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Condensate pump assembly
- Patent number 12,305,637
- Issue date May 20, 2025
- Aspen Pumps Limited
- Claire Saich
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Motor driven pump with prognostic health monitoring based on motor...
- Patent number 12,305,636
- Issue date May 20, 2025
- Hamilton Sundstrand Corporation
- Edward W. Goy
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Electrochemical hydrogen compressor
- Patent number 12,305,305
- Issue date May 20, 2025
- Honda Motor Co., Ltd.
- Shoji Takasugi
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Diaphragm pump
- Patent number 12,305,629
- Issue date May 20, 2025
- MABUCHI MOTOR OKEN CO., LTD.
- Masatsugu Shirai
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Fluid end with clamped retention
- Patent number 12,297,827
- Issue date May 13, 2025
- Kerr Machine Co.
- Kelcy Jake Foster
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pulsation damper
- Patent number 12,297,819
- Issue date May 13, 2025
- Aspen Pumps Ltd
- Christopher John Gee
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIES
- Publication number 20250188957
- Publication date Jun 12, 2025
- Energy Recovery, Inc.
- Omprakash Samudrala
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
COMPRESSOR
- Publication number 20250188921
- Publication date Jun 12, 2025
- Hitachi Industrial Equipment Systems Co., Ltd.
- Kosuke SUDO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Flow Distributor Assembly, Valve Box and Plunger Pump
- Publication number 20250188922
- Publication date Jun 12, 2025
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Xiaobin LI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PUMP ASSEMBLY
- Publication number 20250188923
- Publication date Jun 12, 2025
- Becton, Dickinson and Company
- Stephen Robert LaChance
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
FLUIDIC METHODS AND DEVICES
- Publication number 20250188914
- Publication date Jun 12, 2025
- Obotics Inc.
- Bruce Murison
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
POSITIVE DISPLACEMENT PUMP AND PUMP SYSTEM
- Publication number 20250188920
- Publication date Jun 12, 2025
- Netzsch-Gerätebau GmbH
- Stefan Weigl
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HYDRAULIC DEVICE WITH CASE DRAIN SYSTEM
- Publication number 20250188964
- Publication date Jun 12, 2025
- Tonand Inc.
- Antonio Cannata
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MODULAR POWER END
- Publication number 20250180014
- Publication date Jun 5, 2025
- KERR MACHINE CO.
- Kelcy Jake Foster
- E21 - EARTH DRILLING MINING
Information Patent Application
COMPRESSOR WITH SUCTION VALVES IN PISTON AND CRANKCASE
- Publication number 20250180001
- Publication date Jun 5, 2025
- Advanced Flow Solutions Inc.
- Blake A. Wallace
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MINIATURE VACUUM PUMP AND MINIATURE VACUUM DEVICE
- Publication number 20250180009
- Publication date Jun 5, 2025
- Baifeng LI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
COMPRESSOR VAPORIZER WITH DISCHARGE PIPE IN CRANKCASE
- Publication number 20250180010
- Publication date Jun 5, 2025
- Advanced Flow Solutions Inc.
- Blake A. Wallace
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HEAT EXCHANGER FOR HYDRAULIC POST-TENSIONING JACK SYSTEM
- Publication number 20250180011
- Publication date Jun 5, 2025
- Felix Sorkin
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
METHOD OF PRODUCING COMPRESSED AIR VIA ENERGY EXCHANGE WITH COMPRES...
- Publication number 20250180012
- Publication date Jun 5, 2025
- Dallas Chism Watson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
WELL SERVICING PUMP SYSTEM WITH DRIVELINE ASSEMBLY FOR HYDRAULIC FR...
- Publication number 20250180077
- Publication date Jun 5, 2025
- Halliburton Energy Services, Inc.
- Timothy Holiman Hunter
- E21 - EARTH DRILLING MINING
Information Patent Application
SELF-PRIMING TRANSFER PUMP WITH QUICK PUMP ATTACHMENT/DETACHMENT
- Publication number 20250180013
- Publication date Jun 5, 2025
- FARMCHEM CORP
- Justin Peterson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PUMP MOTOR HANDLE
- Publication number 20250172137
- Publication date May 29, 2025
- Graco Minnesota Inc.
- Derek R. Shaw
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
COOLING SLEEVE FOR USE WITH A FLUID END
- Publication number 20250172139
- Publication date May 29, 2025
- KERR MACHINE CO.
- Micheal Cole Thomas
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
SEALING HIGH PRESSURE FLOW DEVICES
- Publication number 20250172213
- Publication date May 29, 2025
- KERR MACHINE CO.
- Mark S. Nowell
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Power End Housing for Plunger Pump and Plunger Pump Including Power...
- Publication number 20250172138
- Publication date May 29, 2025
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei YAO
- E21 - EARTH DRILLING MINING
Information Patent Application
QUICK-RELEASE PUMP MOUNTING BRACKET
- Publication number 20250172236
- Publication date May 29, 2025
- BLUE-WHITE INDUSTRIES, LTD.
- John T. Nguyen
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
GAS SUPPLY PUMP FOR SHIP DUAL FUEL ENGINE
- Publication number 20250172132
- Publication date May 29, 2025
- HYUNDAI HEAVY INDUSTRIES CO., LTD.
- Sang Don Lee
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DIAPHRAGM RUPTURE SIGNALLING DEVICE
- Publication number 20250172136
- Publication date May 29, 2025
- ProMinent GmbH
- Josef BRAUN
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PUMP HOUSING WITH DRAIN FOR VEHICLE
- Publication number 20250163909
- Publication date May 22, 2025
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Mark Claywell
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MULTI VALVE CONTROL FOR PUMPS
- Publication number 20250163784
- Publication date May 22, 2025
- Halliburton Energy Services, Inc.
- Andrew Silas Clyburn
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
VARIABLE DIAMETER VALVE BORES FOR THRU ROD FLUID ENDS
- Publication number 20250163902
- Publication date May 22, 2025
- GD Energy Products, LLC
- Konner Casey Kay
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Power End Housing for Plunger Pump and Plunger Pump Including Power...
- Publication number 20250163910
- Publication date May 22, 2025
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei YAO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Air Pump Device with Accessories Storage Function
- Publication number 20250154943
- Publication date May 15, 2025
- Huaxin (Dongguan) Technology Co., Ltd.
- Renlan Luo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MOUNTING STRUCTURE FOR DIAPHRAGM AND RETAINER
- Publication number 20250154947
- Publication date May 15, 2025
- IWAKI CO., LTD.
- Masaki KIKUCHI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
POWER END OF RECIPROCATING PUMP
- Publication number 20250154949
- Publication date May 15, 2025
- GD Energy Products, LLC
- Laramie Rose Smith
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
MAGNETIC BEARING FOR SUPPORTING AN RC PISTON
- Publication number 20250154984
- Publication date May 15, 2025
- Nuovo Pignone Tecnologie S.r.l.
- Massimiliano ORTIZ NERI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Machines or pumps with differential surface pistons

Industry

Parent Industries

Current Industry

Sub Industries

Patents Grantslast 30 patents

Pressure regulator for engine lubrication system

Fracturing apparatus and control method thereof, fracturing system

Fluid sample pump system

Slurry transfer device and slurry transfer method using the same

Piston pump for brake system

Micro piston pump

Linear drive assembly

Intelligent controller for a reciprocating air compressor and metho...

Hydraulic pump performance deterioration detection system

Piston pump for a high pressure cleaning device

Pumping system

High pressure water pump fluid end

Fluid end assembly

Variable-speed integrated machine and wellsite apparatus

Zeroing device

Fluid dispensing system having a piston rod and wear sleeve

Rubber balers

Development of a higher-level model for operation of a compressor s...

Refrigerant compressor

Valve stop for use with a fluid end assembly

Submersible hydraulic power units with interchangeable manifolds

Crankshaft, compressor, and refrigeration device

Packing seal assembly

Liquid dispenser

Condensate pump assembly

Motor driven pump with prognostic health monitoring based on motor...

Electrochemical hydrogen compressor

Diaphragm pump

Fluid end with clamped retention

Pulsation damper

Patents Applicationslast 30 patents

PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIES

COMPRESSOR

Flow Distributor Assembly, Valve Box and Plunger Pump

PUMP ASSEMBLY

FLUIDIC METHODS AND DEVICES

POSITIVE DISPLACEMENT PUMP AND PUMP SYSTEM

HYDRAULIC DEVICE WITH CASE DRAIN SYSTEM

MODULAR POWER END

COMPRESSOR WITH SUCTION VALVES IN PISTON AND CRANKCASE

MINIATURE VACUUM PUMP AND MINIATURE VACUUM DEVICE

COMPRESSOR VAPORIZER WITH DISCHARGE PIPE IN CRANKCASE

HEAT EXCHANGER FOR HYDRAULIC POST-TENSIONING JACK SYSTEM

METHOD OF PRODUCING COMPRESSED AIR VIA ENERGY EXCHANGE WITH COMPRES...

WELL SERVICING PUMP SYSTEM WITH DRIVELINE ASSEMBLY FOR HYDRAULIC FR...

SELF-PRIMING TRANSFER PUMP WITH QUICK PUMP ATTACHMENT/DETACHMENT

PUMP MOTOR HANDLE

COOLING SLEEVE FOR USE WITH A FLUID END

SEALING HIGH PRESSURE FLOW DEVICES

Power End Housing for Plunger Pump and Plunger Pump Including Power...

QUICK-RELEASE PUMP MOUNTING BRACKET

GAS SUPPLY PUMP FOR SHIP DUAL FUEL ENGINE

DIAPHRAGM RUPTURE SIGNALLING DEVICE

PUMP HOUSING WITH DRAIN FOR VEHICLE

MULTI VALVE CONTROL FOR PUMPS

VARIABLE DIAMETER VALVE BORES FOR THRU ROD FLUID ENDS

Power End Housing for Plunger Pump and Plunger Pump Including Power...

Air Pump Device with Accessories Storage Function

MOUNTING STRUCTURE FOR DIAPHRAGM AND RETAINER

POWER END OF RECIPROCATING PUMP

MAGNETIC BEARING FOR SUPPORTING AN RC PISTON