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  • G01L13/023
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GPHYSICS G01Measuring instruments G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE G01L13/00Devices or apparatus for measuring differences of two or more pressure values

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G01L13/023using bellows
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure gauge
    • Patent number 11,181,430
    • Issue date Nov 23, 2021
    • Q'z Corporation
    • Hisao Hojoh
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Temperature-compensating absolute pressure sensor
    • Patent number 10,520,383
    • Issue date Dec 31, 2019
    • Rosemount Inc.
    • Charles Edwin Hunt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical pressure sensor with reduced mechanical stresses
    • Patent number 10,082,437
    • Issue date Sep 25, 2018
    • Gaétan Duplain
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Fluidic chip with displacable patterned layer for detecting fluid p...
    • Patent number 9,671,375
    • Issue date Jun 6, 2017
    • Agilent Technologies, Inc.
    • Martin Baeuerle
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Metal bellows condition monitoring system
    • Patent number 9,528,368
    • Issue date Dec 27, 2016
    • Baker Hughes Incorporated
    • Ryan P. Semple
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pressure sensor
    • Patent number 8,015,881
    • Issue date Sep 13, 2011
    • Epson Toyocom Corporation
    • Hisao Motoyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Relative-pressure sensor having a gas-filled bellows
    • Patent number 6,425,291
    • Issue date Jul 30, 2002
    • Endress + Hauser GmbH + Co.
    • Karl Flögel
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Adjustable range spring for differential pressure responsive devices
    • Patent number 4,778,159
    • Issue date Oct 18, 1988
    • ITT Corporation
    • William J. Cooper
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Differential pressure-responsive device
    • Patent number 4,445,382
    • Issue date May 1, 1984
    • Reynolds Equipment Company
    • Louis E. Reynolds
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Capacitive differential pressure transducer
    • Patent number 4,403,513
    • Issue date Sep 13, 1983
    • Sundstrand Corporation
    • John R. Sjolund
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Pressure sensor
    • Patent number 4,357,859
    • Issue date Nov 9, 1982
    • United Technologies Corporation
    • Donald Preston
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Temperature compensation apparatus for a liquid filled conduit
    • Patent number 4,332,166
    • Issue date Jun 1, 1982
    • International Telephone & Telegraph Corporation
    • Victor N. Lawford
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vibrating beam pressure sensor
    • Patent number 4,311,053
    • Issue date Jan 19, 1982
    • Rosemount, Inc.
    • Gerald R. Cucci
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Lead screw actuated fluid gauge
    • Patent number 4,277,981
    • Issue date Jul 14, 1981
    • Fluid Data Systems
    • Gene Glassey
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Precision pressure-responsive fluid gauge
    • Patent number 4,266,430
    • Issue date May 12, 1981
    • Fluid Data Systems, Inc.
    • Gene Glassey
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vibratory-wire pressure sensor
    • Patent number 4,221,133
    • Issue date Sep 9, 1980
    • The Foxboro Company
    • Everett O. Olsen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Pressure sensing system
    • Patent number 3,956,937
    • Issue date May 18, 1976
    • International Telephone & Telegraph Corporation
    • Victor Nicholas Lawford
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3910106
    • Patent number 3,910,106
    • Issue date Oct 7, 1975
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3884079
    • Patent number 3,884,079
    • Issue date May 20, 1975
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3841158
    • Patent number 3,841,158
    • Issue date Oct 15, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3783693
    • Patent number 3,783,693
    • Issue date Jan 8, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3756085
    • Patent number 3,756,085
    • Issue date Sep 4, 1973
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3739645
    • Patent number 3,739,645
    • Issue date Jun 19, 1973
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3722264
    • Patent number 3,722,264
    • Issue date Mar 27, 1973
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3696659
    • Patent number 3,696,659
    • Issue date Oct 10, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3672220
    • Patent number 3,672,220
    • Issue date Jun 27, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3664237
    • Patent number 3,664,237
    • Issue date May 23, 1972
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3625062
    • Patent number 3,625,062
    • Issue date Dec 7, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3602047
    • Patent number 3,602,047
    • Issue date Aug 31, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3575054
    • Patent number 3,575,054
    • Issue date Apr 13, 1971
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    DIAPHRAGM PRESSURE GAUGE AND COMPOUND PRESSURE GAUGE
    • Publication number 20230304883
    • Publication date Sep 28, 2023
    • VACUUM PRODUCTS CORPORATION
    • Hisao HOJOH
    • G01 - MEASURING TESTING
  • Information Patent Application

    PRESSURE GAUGE
    • Publication number 20200232861
    • Publication date Jul 23, 2020
    • Q'z Corporation
    • Hisao Hojoh
    • G01 - MEASURING TESTING
  • Information Patent Application

    TEMPERATURE-COMPENSATING ABSOLUTE PRESSURE SENSOR
    • Publication number 20180094997
    • Publication date Apr 5, 2018
    • ROSEMOUNT INC.
    • Charles Edwin Hunt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Fluidic Chip with Displacable Patterned Layer for Detecting Fluid P...
    • Publication number 20150000416
    • Publication date Jan 1, 2015
    • Agilent Technologies, Inc.
    • Martin Baeuerle
    • G01 - MEASURING TESTING
  • Information Patent Application

    PRESSURE SENSOR
    • Publication number 20120031189
    • Publication date Feb 9, 2012
    • SEIKO EPSON CORPORATION
    • Kenta SATO
    • G01 - MEASURING TESTING
  • Information Patent Application

    PRESSURE SENSOR
    • Publication number 20090241679
    • Publication date Oct 1, 2009
    • EPSON TOYOCOM CORPORATION
    • Hisao MOTOYAMA
    • G01 - MEASURING TESTING