ClassID:

143886

F04C2270/135 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements; Noise Controlled or regulated

Recent Application in this class:
#1
20250264104
2025-08-21

NOISE AND VIBRATION MANAGEMENT FOR SMOKE EVACUATION SYSTEM

#2
20250175096
2025-05-29

ELECTRIC COMPRESSOR

#3
20240263632
2024-08-08

SCROLL COMPRESSOR

#4
20240133378
2024-04-25

Scroll compressor having injection passage containing muffler

#5
20230340958
2023-10-26

NOISE AND VIBRATION MANAGEMENT FOR SMOKE EVACUATION SYSTEM

#6
20230323880
2023-10-12

Balancing mechanism for scroll compressors

#7
20220349636
2022-11-03

System and method for operational acoustic optimization of a variable speed compressor and refrigerator

#8
20220049696
2022-02-17

Apparatus for reducing noise of gear pump through uneven pitch-simulated control and method thereof

#9
20210215155
2021-07-15

Compressor provided with a muffler

#10
20210189922
2021-06-24

GEAR, BALANCER DEVICE, AND BALANCER DEVICE PROVIDED WITH OIL PUMP

#11
20210115924
2021-04-22

Slide valve for compressor and screw compressor with slide valve

#12
20200386232
2020-12-10

Compressor

#13
20200088197
2020-03-19

Scroll compressor with back pressure chamber and back pressure passages

#14
20190316589
2019-10-17

Compressor having muffler function

#15
20190162186
2019-05-30

Noise and vibration management for smoke evacuation system

#16
20180258935
2018-09-13

Electrically driven compressor mounted on a vehicle engine having a weight inside to shift the resonance frequency of the compressor from that of the engine

#17
20180195512
2018-07-12

ROTARY COMPRESSOR

#18
20180166060
2018-06-14

Active cancellation of a pulsating flow with a source noise reference

#19
20160108733
2016-04-21

Silent gear pump or motor suppressing troubles of trapping fluid