characterised by constructional features of membranes or by means for improving proper functioning of membranes

Patents Grantslast 30 patents

  • Information Patent Grant

    Online monitoring method for metering performance of diaphragm gas...

    • Patent number 10,942,059
    • Issue date Mar 9, 2021
    • Weihai Zhuocheng Gas Safety Device Co., Ltd.
    • Changsong Yu
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas meter

    • Patent number 10,830,624
    • Issue date Nov 10, 2020
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Masaki Sugiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Flow meters, flow meter cartridges, and related methods

    • Patent number 10,480,979
    • Issue date Nov 19, 2019
    • Agilent Technologies, Inc.
    • Gregory Webster
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas metering diaphragm

    • Patent number 8,104,397
    • Issue date Jan 31, 2012
    • M&FC Holding, LLC
    • Leland E. Gelnett
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Diaphragm gas meter

    • Patent number 7,032,447
    • Issue date Apr 25, 2006
    • Hajime Onoda
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Fluid flow rate measuring and controlling apparatus and method for...

    • Patent number 5,526,685
    • Issue date Jun 18, 1996
    • Graseby Andersen Inc.
    • Homer W. Davis
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method for manufacturing a diaphragm for a gasmeter

    • Patent number 5,422,064
    • Issue date Jun 6, 1995
    • Toyo Tire & Rubber Co., Ltd.
    • Seiji Tamura
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method for making synthetic membranes for a gas meter

    • Patent number 5,068,074
    • Issue date Nov 26, 1991
    • Schlumberger Industries, S.A.
    • Andre De Rego
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making a gas meter having a synthetic membrane

    • Patent number 4,935,084
    • Issue date Jun 19, 1990
    • Schlumberger Industries, S.A.
    • Andre De Rego
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Gas meter having a synthetic diaphragm and molded housing

    • Patent number 4,891,979
    • Issue date Jan 9, 1990
    • Schlumberger Industries, S.A.
    • Andre De Rego
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Gas meter including a synthetic membrane

    • Patent number 4,779,459
    • Issue date Oct 25, 1988
    • Flonic, S.A.
    • Andre de Rego
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Gas meter

    • Patent number 4,593,562
    • Issue date Jun 10, 1986
    • FLONIC
    • Michel Carte
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Diaphragm type gas meter

    • Patent number 4,091,668
    • Issue date May 30, 1978
    • Kimmon Manufacturing Co., Ltd.
    • Kosuke Namikawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3905231

    • Patent number 3,905,231
    • Issue date Sep 16, 1975
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3834231

    • Patent number 3,834,231
    • Issue date Sep 10, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3808886

    • Patent number 3,808,886
    • Issue date May 7, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3802267

    • Patent number 3,802,267
    • Issue date Apr 9, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3724270

    • Patent number 3,724,270
    • Issue date Apr 3, 1973
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3659448

    • Patent number 3,659,448
    • Issue date May 2, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3415121

    • Patent number 3,415,121
    • Issue date Dec 10, 1968
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3411358

    • Patent number 3,411,358
    • Issue date Nov 19, 1968
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3386288

    • Patent number 3,386,288
    • Issue date Jun 4, 1968
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3340734

    • Patent number 3,340,734
    • Issue date Sep 12, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3314291

    • Patent number 3,314,291
    • Issue date Apr 18, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3289550

    • Patent number 3,289,550
    • Issue date Dec 6, 1966
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3180145

    • Patent number 3,180,145
    • Issue date Apr 27, 1965
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2952248

    • Patent number 2,952,248
    • Issue date Sep 13, 1960
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2923322

    • Patent number 2,923,322
    • Issue date Feb 2, 1960
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2884782

    • Patent number 2,884,782
    • Issue date May 5, 1959
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2874569

    • Patent number 2,874,569
    • Issue date Feb 24, 1959
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents