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  • CPC
  • F03B15/18
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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F03Liquid processing machines F03BMACHINES OR ENGINES FOR LIQUIDS F03B15/00Controlling

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F03B15/18for safety purposes
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluid apparatus
    • Patent number 11,502,630
    • Issue date Nov 15, 2022
    • Daikin Industries, Ltd.
    • Takahiro Abe
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Speed limiting turbine for a conduit
    • Patent number 11,092,131
    • Issue date Aug 17, 2021
    • SAVE INNOVATIONS
    • Gilles Lambinet
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Tidal power generation system and methods
    • Patent number 10,961,974
    • Issue date Mar 30, 2021
    • 1847 SUBSEA ENGINEERING LIMITED
    • Richard Knox
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Method, system and apparatus for operating a hydraulic turbine
    • Patent number 10,941,750
    • Issue date Mar 9, 2021
    • ABB Schweiz AG
    • Xiaobo Yang
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Hydroelectric power generation apparatus and power generation system
    • Patent number 10,677,214
    • Issue date Jun 9, 2020
    • NTN Corporation
    • Yasuyuki Fujita
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Artificial coastal-protection reef with energy generation unit with...
    • Patent number 10,233,894
    • Issue date Mar 19, 2019
    • Universidade de Coimbra
    • José Paulo Pereira De Gouveia Lopes De Almeida
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Stepwise operating parallel type small hydro power generation syste...
    • Patent number 10,233,895
    • Issue date Mar 19, 2019
    • KEUNNAMU CO., LTD.
    • Ok Kyu Yeo
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wave energy conversion device
    • Patent number 8,049,356
    • Issue date Nov 1, 2011
    • E. I. DuPont de Nemours and Company
    • Christophe Chervin
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Pump turbine, method of controlling thereof, and method of stopping...
    • Patent number 6,602,044
    • Issue date Aug 5, 2003
    • Takao Kuwabara
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Reversible pump-turbine system
    • Patent number 6,250,887
    • Issue date Jun 26, 2001
    • Hitachi, Ltd.
    • Takao Kuwabara
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Pump-turbine
    • Patent number 6,210,100
    • Issue date Apr 3, 2001
    • Hitachi, Ltd.
    • Takao Kuwabara
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Pump-turbine
    • Patent number 6,042,331
    • Issue date Mar 28, 2000
    • Hitachi, Ltd.
    • Takao Kuwabara
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Protection for hydraulic machines
    • Patent number 4,781,064
    • Issue date Nov 1, 1988
    • Maurice A. Yates
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Process and device for limiting the overspeed of a low head hydroel...
    • Patent number 4,743,160
    • Issue date May 10, 1988
    • Lucien Megnint
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Fail-safe system for a reversible pump-turbine apparatus
    • Patent number 4,624,622
    • Issue date Nov 25, 1986
    • Hitachi, Ltd.
    • Takao Kuwabara
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Method for stopping a multi-stage hydraulic machine
    • Patent number 4,578,017
    • Issue date Mar 25, 1986
    • Kabushiki Kaisha Toshiba
    • Taizo Nakamura
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Control apparatus for hydraulically driven generator
    • Patent number 4,533,835
    • Issue date Aug 6, 1985
    • Sterling Beckwith
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Water wheel operation control method and apparatus therefor
    • Patent number 4,474,528
    • Issue date Oct 2, 1984
    • Hitachi, Ltd.
    • Toshiaki Yokoyama
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3820917
    • Patent number 3,820,917
    • Issue date Jun 28, 1974
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3680972
    • Patent number 3,680,972
    • Issue date Aug 1, 1972
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3669560
    • Patent number 3,669,560
    • Issue date Jun 13, 1972
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3658436
    • Patent number 3,658,436
    • Issue date Apr 25, 1972
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3635582
    • Patent number 3,635,582
    • Issue date Jan 18, 1972
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3536431
    • Patent number 3,536,431
    • Issue date Oct 27, 1970
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3452962
    • Patent number 3,452,962
    • Issue date Jul 1, 1969
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3403888
    • Patent number 3,403,888
    • Issue date Oct 1, 1968
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3348806
    • Patent number 3,348,806
    • Issue date Oct 24, 1967
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3329399
    • Patent number 3,329,399
    • Issue date Jul 4, 1967
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3319643
    • Patent number 3,319,643
    • Issue date May 16, 1967
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3264485
    • Patent number 3,264,485
    • Issue date Aug 2, 1966
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents