ClassID:

144089

F04D19/048 - CPC Classification

Classification description:

Axial-flow pumps; Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps comprising magnetic bearings

Recent Application in this class:
#1
20260132793
2026-05-14

TURBOMOLECULAR PUMP

#2
20260071636
2026-03-12

VACUUM PUMP WITH AN EDDY CURRENT DAMPER

#3
20250283473
2025-09-11

VACUUM PUMP

#4
20250257732
2025-08-14

VACUUM PUMP

#5
20250020133
2025-01-16

Vacuum pump and adjustment method

#6
20240410379
2024-12-12

VACUUM PUMP, VACUUM PUMP BEARING PROTECTION STRUCTURE, AND VACUUM PUMP ROTATING BODY

#7
20240369064
2024-11-07

VACUUM PUMP

#8
20240352937
2024-10-24

MAGNETIC BEARING DEVICE AND VACUUM PUMP

#9
20240337267
2024-10-10

MAGNETIC BEARING DEVICE AND VACUUM PUMP

#10
20240254994
2024-08-01

VACUUM PUMP

#11
20240141907
2024-05-02

VACUUM PUMP AND VACUUM EXHAUST APPARATUS

#12
20240093701
2024-03-21

ROTOR ASSEMBLY FOR A TURBOMOLECULAR PUMP

#13
20240026889
2024-01-25

VACUUM PUMP

#14
20230417254
2023-12-28

Vacuum pump system and control method

#15
20230400035
2023-12-14

Oil feed nut and oil reservoir for a vacuum pump

#16
20230313804
2023-10-05

VACUUM PUMP COMPRISING AN AXIAL MAGNETIC BEARING AND A RADIAL GAS FOIL BEARING

#17
20230250826
2023-08-10

Vacuum pump and vacuum pump rotor blade

#18
20230243359
2023-08-03

Vacuum pump and rotating body for vacuum pump

#19
20230175515
2023-06-08

METHOD OF SETTING UP AN ELECTRICAL MOTOR SPEED CONTROL IN A FLUIDIC SYSTEM

#20
20230109154
2023-04-06

Axial flow vacuum pump with curved rotor and stator blades

#21
20220397124
2022-12-15

Vacuum pump

#22
20220260081
2022-08-18

Vacuum pump, rotor, and rotor body with rupture location control means on the rotor

#23
20220235779
2022-07-28

VARIABLE INLET CONDUCTANCE VACUUM PUMP, VACUUM PUMP ARRANGEMENT AND METHOD

#24
20220235777
2022-07-28

VACUUM PUMP AND PROTECTION MEMBER PROVIDED IN VACUUM PUMP

#25
20220228594
2022-07-21

Vacuum pump and linked-type thread groove spacer

#26
20220205449
2022-06-30

Vacuum pump including magnetic bearing and motor bearing operable as radial magnetic bearing, motor, and thrust magnetic bearing

#27
20220074421
2022-03-10

Vacuum pump and control device for vacuum pump

#28
20220074407
2022-03-10

Vacuum pump including levitated magnetic bearing

#29
20210372471
2021-12-02

Hybrid magnetic radial bearing in an electric submersible pump (ESP) assembly

#30
20210123449
2021-04-29

Vacuum pump, and control device of vacuum pump

#31
20210018012
2021-01-21

Vacuum pump, temperature adjustment controller used for vacuum pump, inspection tool, and method of diagnosing temperature-adjustment function unit

#32
20210018005
2021-01-21

Vacuum pump and magnetic bearing controller with multiple rigidity modes at high and low gains

#33
20210018003
2021-01-21

Vacuum pump exhaust system, vacuum pump provided for vacuum pump exhaust system, purge gas supply unit, temperature sensor unit, and exhausting method of vacuum pump

#34
20200386234
2020-12-10

Magnetic bearing control apparatus and vacuum pump

#35
20200166041
2020-05-28

Vacuum pump, and magnetic bearing device and annular electromagnet used in vacuum pump

#36
20200158118
2020-05-21

Vacuum pump, magnetic bearing device, and rotor

#37
20200141415
2020-05-07

PUMP MONITORING DEVICE, VACUUM PROCESSING DEVICE, AND VACUUM PUMP

#38
20200011336
2020-01-09

Vacuum pump, rotating portion included in vacuum pump, and imbalance correction method

#39
20200011335
2020-01-09

Variable inlet conductance vacuum pump, vacuum pump arrangement and method

#40
20190368499
2019-12-05

Pump bearing holders

#41
20190249677
2019-08-15

Magnetic levitation control device and vacuum pump

#42
20190170151
2019-06-06

Magnetic bearing device and fluid machine system using same

#43
20190085853
2019-03-21

FAN

#44
20190040866
2019-02-07

Vacuum pump

#45
20190024667
2019-01-24

Electromagnetic unit, magnetic bearing device, and vacuum pump

#46
20180363663
2018-12-20

Vacuum pump

#47
20180363662
2018-12-20

Vacuum pump, and rotor blade and reflection mechanism mounted in vacuum pump

#48
20180283386
2018-10-04

Vacuum pump

#49
20180223869
2018-08-09

Turbomachine and method of operating a turbomachine

#50
20180216665
2018-08-02

Magnetic bearing control device and vacuum pump

#51
20180195519
2018-07-12

Vacuum valve and vacuum pump

#52
20180195518
2018-07-12

Vacuum valve, vacuum pump, and vacuum pumping system

#53
20180163732
2018-06-14

VACUUM PUMP

#54
20180128280
2018-05-10

ROTOR AND VACUUM PUMP EQUIPPED WITH SAME

#55
20170346356
2017-11-30

Vacuum pump

#56
20170268519
2017-09-21

Magnetic levitation vacuum pump

#57
20170146016
2017-05-25

Magnetic bearing device and vacuum pump

#58
20170089351
2017-03-30

Elongated permanent ring management with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet

#59
20160312826
2016-10-27

PROTECTIVE BEARING, BEARING UNIT, AND VACUUM PUMP

#60
20160195098
2016-07-07

Vacuum pump

#61
20150303836
2015-10-22

Electromagnetic rotating device and vacuum pump equipped with electromagnetic rotating device

#62
20150292515
2015-10-15

Vacuum pump with back-up bearing contact sensor

#63
20150240829
2015-08-27

Rotor and vacuum pump equipped with same

#64
20150219106
2015-08-06

TURBO COMPRESSOR

#65
20150050170
2015-02-19

Magnetic bearing device and vacuum pump

#66
20140377106
2014-12-25

Sensorless magnetic levitation vacuum pump and sensorless magnetic levitation device

#67
20140356126
2014-12-04

Method and system for synchronously inhibiting subcritical vibrations of magnetic levitation molecular pump rotor

#68
20140234139
2014-08-21

Compressor having biased controlled magnetic bearings

#69
20140212312
2014-07-31

Magnetic bearing device and vacuum pump

#70
20140212296
2014-07-31

METHOD OF COATING OF AND/OR APPLYING LACQUER ON MAGNETIC RINGS OF A ROTOR MAGNETIC BEARING, ROTOR MAGNETIC BEARING, AND VACUUM PUMP

#71
20140210385
2014-07-31

Motor driving device and vacuum pump

#72
20130224042
2013-08-29

Vacuum pump

#73
20130129482
2013-05-23

VACUUM PUMP

#74
20120263577
2012-10-18

Device for detecting the axial position of a rotary shaft and its application to a turbo-molecular pump

#75
20110210631
2011-09-01

Bearing arrangement and bearing block having a magnetic radial bearing and a touchdown bearing for a rotating machine

#76
20110176910
2011-07-21

Turbomolecular Pump with a Flexible Mount

#77
20110123358
2011-05-26

Vacuum pump

#78
20110123328
2011-05-26

VACUUM PUMP

#79
20100290915
2010-11-18

Multi-stage pump rotor for a turbomolecular pump

#80
20100196180
2010-08-05

VACUUM PUMP

#81
20100098558
2010-04-22

Vacuum pump having nested chambers associated with a mass spectrometer

#82
20100098539
2010-04-22

Turbomachine

#83
20100072845
2010-03-25

METHOD FOR DETERMINATION OF RESONANT FREQUENCIES OF A ROTOR USING MAGNETIC BEARINGS

#84
20080231128
2008-09-25

Magnetic bearing device with an improved vacuum feedthrough

#85
20080185928
2008-08-07

Rotor shaft for a magnetic bearing device

#86
20070140833
2007-06-21

Vacuum pumping arrangement

#87
20070132327
2007-06-14

Turbomolecular vacuum pump

#88
20070024138
2007-02-01

Magnetic bearing device and vacuum pump

#89
20060140794
2006-06-29

Vacuum pumping arrangement

#90
20050212370
2005-09-29

Magnetic bearing device and turbo molecular pump with the magnetic bearing device mounted thereto

#91
20050186099
2005-08-25

Active vibration reduction

#92
20050179333
2005-08-18

Magnetic bearing device and pump device with the magnetic bearing device mounted thereto