ClassID:

144088

F04D19/046 - CPC Classification

Classification description:

Axial-flow pumps; Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps Combinations of two or more different types of pumps

Recent Application in this class:
#1
20260028973
2026-01-29

MULTI-PRESSURE INTEGRATED AIR PUMP

#2
20240392786
2024-11-28

SEALING SOFT WATER RECOVERY APPARATUS FOR VACUUM PUMP IN VACUUM PRESSURE SWING ADSORPTION OXYGEN GENERATION SYSTEM

#3
20240117816
2024-04-11

VACUUM PUMP

#4
20230332587
2023-10-19

MULTI-PRESSURE INTEGRATED AIR PUMP

#5
20230107879
2023-04-06

METHOD TO OPERATE A VACUUM SYSTEM

#6
20230042886
2023-02-09

VACUUM PUMP, VACUUM PUMP SET FOR EVACUATING A SEMICONDUCTOR PROCESSING CHAMBER AND METHOD OF EVACUATING A SEMICONDUCTOR PROCESSING CHAMBER

#7
20230033429
2023-02-02

Vacuum pump system and method for operating a vacuum pump system

#8
20220235779
2022-07-28

VARIABLE INLET CONDUCTANCE VACUUM PUMP, VACUUM PUMP ARRANGEMENT AND METHOD

#9
20220170471
2022-06-02

Vacuum pump with elastic spacer

#10
20210408852
2021-12-30

Resin molded rotor, canned motor, canned motor pump, fan scrubber, and vacuum pump apparatus

#11
20210115933
2021-04-22

Vacuum pumping device and vacuum pumping device starting method

#12
20210003120
2021-01-07

Multi-pressure integrated air pump

#13
20200378857
2020-12-03

Vacuum pump and leak detector

#14
20200355190
2020-11-12

VACUUM PUMPING ARRANGEMENT

#15
20200240421
2020-07-30

Turbo-molecular pump blade design

#16
20200095998
2020-03-26

Vacuum pump, main sensor, and thread groove stator

#17
20200080549
2020-03-12

Vacuum pumping arrangement

#18
20200072230
2020-03-05

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#19
20200011335
2020-01-09

Variable inlet conductance vacuum pump, vacuum pump arrangement and method

#20
20190383294
2019-12-19

Multiple port vacuum pump system

#21
20190345938
2019-11-14

Vacuum pump system and method for operating a vacuum pump system

#22
20190285090
2019-09-19

Turbomolecular pump deposition control and particle management

#23
20190242386
2019-08-08

Vacuum pump with control device in relation to outer cylinder

#24
20190170146
2019-06-06

Vacuum pump

#25
20190162193
2019-05-30

Mass-spectrometric leak detector with turbomolecular pump and booster pump on a common shaft

#26
20190120236
2019-04-25

Integrated connector between first and second vacuum pumps creating a vapor phase region environment

#27
20180355888
2018-12-13

Connected thread groove spacer and vacuum pump

#28
20180335052
2018-11-22

Vacuum pump

#29
20180310432
2018-10-25

Cooling systems

#30
20180163732
2018-06-14

VACUUM PUMP

#31
20180128280
2018-05-10

ROTOR AND VACUUM PUMP EQUIPPED WITH SAME

#32
20170363101
2017-12-21

Vacuum pump

#33
20170292525
2017-10-12

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#34
20170284394
2017-10-05

Pumping system for generating a vacuum and method for pumping by means of this pumping system

#35
20170218966
2017-08-03

Vacuum system

#36
20170002832
2017-01-05

Vacuum pump

#37
20160365234
2016-12-15

Vacuum pump and mass spectrometer

#38
20160319825
2016-11-03

Vacuum exhaust mechanism, compound type vacuum pump, and rotating body part

#39
20160298645
2016-10-13

Vacuum pump component, siegbahn type exhaust mechanism and compound vacuum pump

#40
20160223424
2016-08-04

Sniffer leak detector with multi-stage membrane pump

#41
20160222971
2016-08-04

Thread groove pump mechanism, vacuum pump including thread groove pump mechanism, and rotor, outer circumference side stator, and inner circumference side stator used in thread groove pump mechanism

#42
20160160877
2016-06-09

Vacuum pump

#43
20160069350
2016-03-10

Stator disk and vacuum pump

#44
20150275914
2015-10-01

Vacuum pump

#45
20150240829
2015-08-27

Rotor and vacuum pump equipped with same

#46
20150184666
2015-07-02

Vacuum pump

#47
20150056060
2015-02-26

Multiple port vacuum pump system

#48
20150037137
2015-02-05

Gas transfer vacuum pump

#49
20150030475
2015-01-29

Vacuum pump

#50
20140369807
2014-12-18

Vacuum pump

#51
20140348634
2014-11-27

Adapter for vacuum pumps and associated pumping device

#52
20140205433
2014-07-24

Spiral pumping stage and vacuum pump incorporating such pumping stage

#53
20140205432
2014-07-24

Rotary vacuum pump

#54
20140072452
2014-03-13

Apparatus and method for shielding a controlled pressure environment

#55
20140050607
2014-02-20

Vacuum pump and rotor thereof

#56
20130340842
2013-12-26

Vacuum pumping system

#57
20130243583
2013-09-19

Vacuum pump

#58
20130224001
2013-08-29

Vacuum pump

#59
20130186183
2013-07-25

Leak detection appliance

#60
20130058782
2013-03-07

Vacuum pump

#61
20130028757
2013-01-31

Vacuum pumping system

#62
20120219443
2012-08-30

Vacuum pumping system having an ejector and check valve

#63
20120201696
2012-08-09

Vacuum pump

#64
20120168621
2012-07-05

Mass spectrometer system

#65
20120132800
2012-05-31

VACUUM SYSTEM

#66
20120027583
2012-02-02

VACUUM PUMP

#67
20110311348
2011-12-22

Multi-inlet vacuum pump

#68
20110286864
2011-11-24

Multiple inlet vacuum pumps

#69
20110200423
2011-08-18

Vacuum pump

#70
20100326599
2010-12-30

INTEGRATED APPARATUS FOR VACUUM PRODUCING

#71
20100186427
2010-07-29

Exhaust system

#72
20090196734
2009-08-06

Turbo vacuum pump

#73
20090142183
2009-06-04

Turbo vacuum pump

#74
20090112370
2009-04-30

VACUUM SYSTEM AND METHOD FOR OPERATING THE SAME

#75
20090101214
2009-04-23

Gas supply system for a pumping arrangement

#76
20080253903
2008-10-16

Vacuum pumps with auxiliary pumping stages

#77
20080193303
2008-08-14

Multi-stage vacuum pumping arrangement

#78
20080145205
2008-06-19

Vacuum pump

#79
20080138219
2008-06-12

Vacuum pump

#80
20080056885
2008-03-06

Vacuum pumps with improved pumping channel configurations

#81
20070258836
2007-11-08

Vacuum pump

#82
20070116555
2007-05-24

Vacuum pump

#83
20070081893
2007-04-12

Pump apparatus for semiconductor processing

#84
20070081889
2007-04-12

Multi-stage friction vacuum pump

#85
20070071992
2007-03-29

Coating

#86
20070031263
2007-02-08

Vacuum pump

#87
20070028669
2007-02-08

Detection of contaminants within fluid pumped by a vacuum pump

#88
20070020116
2007-01-25

Vacuum pump

#89
20070020115
2007-01-25

Integrated pump apparatus for semiconductor processing

#90
20070020111
2007-01-25

Fast enclosure pumping with power saving

#91
20060263205
2006-11-23

Turbo vacuum pump

#92
20060257249
2006-11-16

Hybrid turbomolecular vacuum pumps

#93
20060182638
2006-08-17

Vacuum device and vacuum pump

#94
20060177300
2006-08-10

Baffle configurations for molecular drag vacuum pumps

#95
20060153715
2006-07-13

Vacuum pumping system and method of operating a vacuum pumping arrangement

#96
20060140795
2006-06-29

Vacuum pumping arrangement

#97
20060099094
2006-05-11

Vacuum pumping arrangement and method of operating same

#98
20060093473
2006-05-04

Integrated turbo/drag/regenerative pump with counter-rotating turbo blades

#99
20060034702
2006-02-16

Leak detector comprising an inlet

#100
20050142010
2005-06-30

Fore-line preconditioning for vacuum pumps

#101
20050047904
2005-03-03

Vacuum pump

#102
20050025640
2005-02-03

Vacuum pump and semiconductor manufacturing apparatus

#103
20050025634
2005-02-03

Controlling pressure in a process chamber by variying pump speed and a regulator valve, and by injecting inert gas

#104
14611682
2016-06-14

Mass spectrometer