ClassID:

143078

F04B45/022 - CPC Classification

Classification description:

Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows with two or more bellows in parallel

Recent Application in this class:
#1
20260153079
2026-06-04

BELLOWS PUMP DEVICE

#2
20250223955
2025-07-10

BELLOWS PUMP DEVICE

#3
20240200542
2024-06-20

Conveying Device

#4
20240044325
2024-02-08

BELLOWS PUMP DEVICE

#5
20220341414
2022-10-27

Bellows pump device

#6
20220236093
2022-07-28

Liquid feeding pump, dispensing system and washing device

#7
20220154712
2022-05-19

Vacuum pump

#8
20210140294
2021-05-13

Method, system and use of controlling working range of a pump bellows

#9
20200392948
2020-12-17

Fluid pump

#10
20200277947
2020-09-03

Tubephragm pump

#11
20200032785
2020-01-30

LIQUID SUPPLY SYSTEM

#12
20200025191
2020-01-23

Electrochemically actuated pump

#13
20200011323
2020-01-09

LIQUID SUPPLY SYSTEM

#14
20200003197
2020-01-02

Hypocycloid compressor

#15
20190195217
2019-06-27

Vacuum pump

#16
20180363646
2018-12-20

Diaphragm pump

#17
20180187671
2018-07-05

Electric inflator

#18
20180003165
2018-01-04

Multistage compressor with magnetically actated compression stage

#19
20170350382
2017-12-07

Bellows pump apparatus

#20
20170218946
2017-08-03

Bellows pump device

#21
20170175729
2017-06-22

Cooling device equipped with a compressor device

#22
20170074260
2017-03-16

Air pump

#23
20170009761
2017-01-12

Hydraulically driven bellows pump

#24
20160333872
2016-11-17

Electrochemically actuated pump

#25
20140099222
2014-04-10

Highly airtight gas pump

#26
20140010689
2014-01-09

Bellows pump

#27
20130312452
2013-11-28

Expander system

#28
20120315166
2012-12-13

Diaphragm pump with inlet pathways passing through mounting holes

#29
20110318207
2011-12-29

Bellows pump

#30
20100286597
2010-11-11

DC-AC frequency converter type mucus suction device

#31
20100137781
2010-06-03

Bubble-type nose cleaner

#32
20090324431
2009-12-31

Apparatus for pumping a fluid

#33
20090010778
2009-01-08

Diaphragm pumping device

#34
20080216472
2008-09-11

Buoyancy engine apparatus

#35
20070237653
2007-10-11

Air pump for aquariums

#36
20070217929
2007-09-20

Diaphragm pumping device

#37
20070203438
2007-08-30

AIR CONTROLLED MASSAGE SYSTEM WITH MOTORIZED DRIVE MECHANISM

#38
20070183912
2007-08-09

Compressor

#39
20070183906
2007-08-09

Buoyancy engine apparatus

#40
20070160485
2007-07-12

Air pump with air noise reduction structure

#41
20070140879
2007-06-21

Air pump with improved air intake control structure

#42
20060292018
2006-12-28

Hydraulic powered pneumatic super charger for on-board inert gas generating system

#43
20060265835
2006-11-30

ROTARY ENGINES

#44
20050246859
2005-11-10

Rotary engines

#45
20050241102
2005-11-03

Vacuum cleaners especially quiet vacuum cleaners, pumps, and engines

#46
20050101892
2005-05-12

Air controlled massage system with motorized drive mechanism

#47
20050101891
2005-05-12

Air controlled massage system