ClassID:

166829

G01L13/026 - CPC Classification

Classification description:

Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms involving double diaphragm

Recent Application in this class:
#1
20260079062
2026-03-19

MEDIA-ISOLATED RELATIVE GAUGE PRESSURE SENSOR

#2
20260016357
2026-01-15

DIAPHRAGM PRESSURE GAUGE AND COMPOUND PRESSURE GAUGE

#3
20250198870
2025-06-19

PRESSURE TRANSDUCER FOR DETERMINING AND/OR MONITORING THE PRESSURE OF A MEDIUM

#4
20250076141
2025-03-06

Sensor Having a Package with a Sensor Die

#5
20250035500
2025-01-30

RELATIVE PRESSURE MEASUREMENT RECORDER FOR DETERMINING A FIRST PRESSURE OF A MEDIUM

#6
20250020530
2025-01-16

USE OF A GALLIUM-BASED ALLOY AS TRANSFER FLUID IN A DIAPHRAGM SEAL

#7
20240426688
2024-12-26

PROCESS PRESSURE TRANSMITTER FOR HYDROGEN APPLICATIONS

#8
20240328882
2024-10-03

Sensor having a plurality of diaphragms

#9
20240255372
2024-08-01

CREEP/DEFORMATION COMPENSATION FOR SENSORS

#10
20240240977
2024-07-18

SYSTEMS, APPARATUSES, AND METHODS FOR FLUID FLOW DETECTION

#11
20240068896
2024-02-29

DIFFERENTIAL PRESSURE MEASURING SENSOR WITH OVERLOAD PROTECTION

#12
20240068895
2024-02-29

DIFFERENTIAL PRESSURE SENSOR FOR DETERMINING THE DIFFERENTIAL PRESSURE BETWEEN TWO PRESSURES

#13
20240044733
2024-02-08

COPLANAR DIFFERENTIAL PRESSURE TRANSDUCER

#14
20230304883
2023-09-28

DIAPHRAGM PRESSURE GAUGE AND COMPOUND PRESSURE GAUGE

#15
20230152175
2023-05-18

Pressure transmitter

#16
20230146603
2023-05-11

PRESSURE SENSOR CHIP, PRESSURE SENSOR, AND MANUFACTURING METHOD THEREOF

#17
20230115850
2023-04-13

Sensing device

#18
20230033615
2023-02-02

Photoacoustic Gas Sensor and Pressure Sensor

#19
20220404224
2022-12-22

Sensor device having first and second corrugated diaphragms for determining differential pressure in liquid or gaseous media

#20
20220316973
2022-10-06

Differential pressure sensor

#21
20220228938
2022-07-21

Electrostatic capacity sensor

#22
20210348956
2021-11-11

Pressure and flow rate measuring cell

#23
20210130161
2021-05-06

Micromechanical pressure sensor with two cavities and diaphragms and corresponding production method

#24
20210116318
2021-04-22

Differential pressure sensor

#25
20210108981
2021-04-15

Sensor device with multiple simultaneous pressure measurements

#26
20210108980
2021-04-15

Pressure sensor element for measuring differential pressure and a diaphragm base having a set of diaphragms displaced by receiving pressures where a set of pressure inlet passages respectively transmit different pressures to the set of diaphragms

#27
20210096036
2021-04-01

Pressure sensing device isolation cavity seal monitoring

#28
20200400553
2020-12-24

Photoacoustic gas sensor and pressure sensor

#29
20200319049
2020-10-08

Double-membrane capacitive pressure sensor and manufacturing method

#30
20200209090
2020-07-02

High sensitivity pressure sensor package

#31
20200200632
2020-06-25

Corrosion-protection element for a field device

#32
20200064216
2020-02-27

Differential MEMS pressure sensors with a ceramic header body and methods of making differential MEMS pressure sensors

#33
20200056954
2020-02-20

OVERPRESSURE PROTECTION SYSTEM

#34
20190271605
2019-09-05

Pressure modulator

#35
20180283973
2018-10-04

SENSOR DEVICE, ELECTRONIC APPARATUS, AND VEHICLE

#36
20180259416
2018-09-13

Pressure sensor with flow porting having integral flame-proof safety mechanism

#37
20180259415
2018-09-13

Pressure sensor header with improved input pressure withstand capability

#38
20180259414
2018-09-13

Pressure sensor having overpressure protection with reduced output error

#39
20180259413
2018-09-13

PRESSURE SENSOR HAVING COPLANAR METER BODY WITH SENSOR OVERPRESSURE PROTECTION

#40
20180180505
2018-06-28

Diaphragm seal assembly with evacuated double diaphragm and vacuum monitoring

#41
20180136066
2018-05-17

Method and apparatus for correction of pressure sensors

#42
20180136063
2018-05-17

Pressure sensor sub assembly and fabrication

#43
20170241856
2017-08-24

Pressure modulator

#44
20170205303
2017-07-20

Compact or miniature high temperature differential pressure sensor capsule

#45
20170016787
2017-01-19

MEMS capacitive pressure sensor

#46
20170010169
2017-01-12

Differential pressure measuring pickup

#47
20160334292
2016-11-17

Pressure sensor

#48
20160327446
2016-11-10

Micromechanical pressure sensor device and corresponding manufacturing method

#49
20160310358
2016-10-27

Manometer with cadence indicator

#50
20150377730
2015-12-31

Process pressure transmitter with seal having diamond like carbon coating

#51
20150352001
2015-12-10

Manometer with cadence indicator

#52
20150330854
2015-11-19

Differential pressure sensor and differential pressure sensor manufacturing method

#53
20150135842
2015-05-21

Transmission device

#54
20140251019
2014-09-11

Coplanar process fluid pressure sensor module

#55
20140102208
2014-04-17

Pressure sensor chip

#56
20140096613
2014-04-10

Pressure transmitter and transmission method

#57
20140090476
2014-04-03

Remote seal process pressure measuring system

#58
20140020472
2014-01-23

Differential pressure/pressure transmitting device

#59
20130160560
2013-06-27

Pressure sensor module for sub-sea applications

#60
20130104663
2013-05-02

Coplanar process fluid pressure sensor module

#61
20130087863
2013-04-11

Differential pressure sensor device

#62
20130068029
2013-03-21

Corrosion resistant isolator assembly for process devices

#63
20120079884
2012-04-05

Industrial process transmitter with high static pressure isolation diaphragm coupling

#64
20120006119
2012-01-12

Differential pressure transmitter with complimentary dual absolute pressure sensors

#65
20100281992
2010-11-11

Pressure difference measuring cell

#66
20090078054
2009-03-26

Differential pressure sensor isolation in a process fluid pressure transmitter

#67
20080127738
2008-06-05

Pressure-difference pickup with dynamic overload protection

#68
20080113307
2008-05-15

Air fuel ratio sensor of incinerator

#69
20080006094
2008-01-10

Pressure transmitter with multiple reference pressure sensors

#70
20060272422
2006-12-07

Pressure sensor device including a diaphragm and a stopper member having a curved surface facing the diaphragm

#71
20050199070
2005-09-15

Electrical shield structure for pressure sensor