ClassID:

143212

F04B53/129 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  - ; Valves; Arrangement of valves arranged in or on pistons; Reciprocating valves Poppet valves

Recent Application in this class:
#1
20260139667
2026-05-21

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#2
20260055685
2026-02-26

IMPROVED DART AND CLUTCH ASSEMBLY

#3
20250290505
2025-09-18

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#4
20240344436
2024-10-17

DART AND CLUTCH ASSEMBLY

#5
20240344435
2024-10-17

DART AND CLUTCH ASSEMBLY

#6
20240344434
2024-10-17

DART AND CLUTCH ASSEMBLY

#7
20240337174
2024-10-10

DART AND CLUTCH ASSEMBLY

#8
20240337173
2024-10-10

DART AND CLUTCH ASSEMBLY

#9
20230279854
2023-09-07

Method for Removal of Valve Seats within Fluid End Assembly

#10
20230279760
2023-09-07

Fluid End Assembly for Delivery of Fracture Fluid

#11
20230193793
2023-06-22

PRESSURE REGULATOR FOR ENGINE LUBRICATION SYSTEM

#12
20230175353
2023-06-08

DART AND CLUTCH ASSEMBLY

#13
20230029090
2023-01-26

DART AND CLUTCH ASSEMBLY

#14
20220275712
2022-09-01

Unibody bypass plunger and valve cage with sealable ports

#15
20210310481
2021-10-07

Pneumatic surge suppressor

#16
20210131424
2021-05-06

Mechanically actuated travelling plug valve

#17
20210131239
2021-05-06

Unibody bypass plunger and valve cage with sealable ports

#18
20200256295
2020-08-13

Fuel delivery injector

#19
20200256170
2020-08-13

Unibody bypass plunger and valve cage with sealable ports

#20
20190203570
2019-07-04

Unibody bypass plunger and valve cage with sealable ports

#21
20190195214
2019-06-27

Poppet valve assembly

#22
20190136808
2019-05-09

Fuel delivery injector

#23
20180252191
2018-09-06

Fuel delivery injector

#24
20150300330
2015-10-22

Reciprocating pumps for downhole deliquification systems and pistons for reciprocating pumps

#25
20140261790
2014-09-18

Poppet valve with integrated dampener

#26
20130058805
2013-03-07

Pneumatic micropump

#27
20130015385
2013-01-17

Poppet valve with integrated dampener

#28
20100209275
2010-08-19

Hydraulic cylinder having piston-mounted bypass valve

#29
20080069712
2008-03-20

High-Pressure Pump for a Fuel Injection System of an Internal Combustion Engine

#30
15601628
2020-06-16

Hydraulic system and method for providing fluid pressure to hydraulically-powered systems