ClassID:

144056

F04D17/02 - CPC Classification

Classification description:

Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal

Sub-classes:
Recent Application in this class:
#1
20250334125
2025-10-30

BLADELESS CEILING FAN

#2
20250314256
2025-10-09

FAN IMPELLER WITH TURBULANCE-REDUCING BLADES

#3
20250283472
2025-09-11

COMPRESSOR FOR CO2 CYCLE WITH AT LEAST TWO CASCADE COMPRESSION STAGES FOR ASSURING SUPERCRITICAL CONDITIONS

#4
20250052253
2025-02-13

RADIAL IMPELLER WITH MAXIMIZED INDUCER AREA

#5
20250012285
2025-01-09

Fan Device For Engine Loading

#6
20240309888
2024-09-19

Silent Fan

#7
20240229709
2024-07-11

DISTRIBUTED PROPULSION WITH OFFSET PROPULSION MODULES

#8
20240218823
2024-07-04

COOLING MODULE FOR AN ELECTRIC OR HYBRID MOTOR VEHICLE

#9
20240133339
2024-04-25

Distributed propulsion with offset propulsion modules

#10
20240011493
2024-01-11

COMPRESSOR FOR CO2 CYCLE WITH AT LEAST TWO CASCADE COMPRESSION STAGES FOR ASSURING SUPERCRITICAL CONDITIONS

#11
20230121916
2023-04-20

Heat exchanger arrangement

#12
20230011552
2023-01-12

Fan device for engine loading

#13
20220356886
2022-11-10

Impeller apparatus and air blowing device

#14
20200058479
2020-02-20

Turbo molecular pump for mass spectrometer

#15
20190162188
2019-05-30

Gas turbine engines and compression systems therefor

#16
20180266433
2018-09-20

High stiffness turbomachine impeller, turbomachine including said impeller and method of manufacturing

#17
20180023595
2018-01-25

High pressure cyclonic separator for turbomachinery

#18
20170074280
2017-03-16

Counter-rotating compressor

#19
20150093232
2015-04-02

Supersonic compressor and associated method

#20
20140341714
2014-11-20

Centrifugation device with adjustable vanes

#21
20140205433
2014-07-24

Spiral pumping stage and vacuum pump incorporating such pumping stage

#22
20120224952
2012-09-06

System and methods of assembling a supersonic compressor rotor including a radial flow channel

#23
20120164008
2012-06-28

NEGATIVE-PRESSURE OXYGEN PROVIDING DEVICE

#24
20120107106
2012-05-03

System and method of assembling a supersonic compressor system including a supersonic compressor rotor and a compressor assembly

#25
20120051933
2012-03-01

Supersonic compressor rotor and method of assembling same

#26
20070081889
2007-04-12

Multi-stage friction vacuum pump

#27
20060198730
2006-09-07

Rotary ram compressor

#28
20050249591
2005-11-10

Rotary ram-out vacuum pump

#29
20050191173
2005-09-01

Rotary ram-in compressor