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Christopher Alexander

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  • Cambridge, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Foot spa with disposable pump
    • Patent number 11,951,069
    • Issue date Apr 9, 2024
    • Gulfstream Inc.
    • Minh Sang Tran
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Foot spa
    • Patent number 10,863,869
    • Issue date Dec 15, 2020
    • Gulfstream Inc.
    • Minh Sang Tran
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Bubble generation system
    • Patent number 10,512,589
    • Issue date Dec 24, 2019
    • Gulfstream Inc.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Foot spa with illumination
    • Patent number 10,478,376
    • Issue date Nov 19, 2019
    • Gulfstream Inc.
    • Minh Sang Tran
    • F21 - LIGHTING
  • Information Patent Grant

    Foot spa with UV lights
    • Patent number 10,219,977
    • Issue date Mar 5, 2019
    • Gulfstream Inc.
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Nail dryer
    • Patent number 9,888,758
    • Issue date Feb 13, 2018
    • Gulfstream Inc.
    • Chris Alexander
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Inductive coupling
    • Patent number 9,572,747
    • Issue date Feb 21, 2017
    • Gulfstream Inc.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Inductive coupling
    • Patent number 9,205,023
    • Issue date Dec 8, 2015
    • Gulfstream Inc.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Pedicure spa station with separate integrated drain
    • Patent number 8,726,430
    • Issue date May 20, 2014
    • Gulfstream Inc.
    • Minh Sang Tran
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Lighting system for pedicure spa
    • Patent number 8,680,699
    • Issue date Mar 25, 2014
    • Gulfstream Inc.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Water impeller
    • Patent number 8,662,848
    • Issue date Mar 4, 2014
    • Gulfstream Inc.
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Light kit in combination with a pump system
    • Patent number 8,531,048
    • Issue date Sep 10, 2013
    • Gulfstream, Inc.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Magnetic centrifugal pump
    • Patent number 8,366,418
    • Issue date Feb 5, 2013
    • Gulfstream, Inc.
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    FOOT SPA WITH DISPOSABLE PUMP
    • Publication number 20240216218
    • Publication date Jul 4, 2024
    • Gulfstream Inc.
    • Minh Sang Tran
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SYSTEM FOR ADAPTING FOOT SPAS FOR USE WITH DISPOSABLE PUMPS
    • Publication number 20220412365
    • Publication date Dec 29, 2022
    • GULFSTREAM INC.
    • Chris Alexander
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FOOT SPA WITH DISPOSABLE PUMP
    • Publication number 20210361527
    • Publication date Nov 25, 2021
    • GULFSTREAM INC.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    FOOT SPA
    • Publication number 20190104891
    • Publication date Apr 11, 2019
    • GULFSTREAM INC.
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    AIR VENT SYSTEM
    • Publication number 20180297090
    • Publication date Oct 18, 2018
    • GULFSTREAM INC.
    • Minh Sang Tran
    • B08 - CLEANING
  • Information Patent Application

    NAIL DRYER
    • Publication number 20180274857
    • Publication date Sep 27, 2018
    • GULFSTREAM INC.
    • Chris Alexander
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    FOOT SPA WITH ILLUMINATION
    • Publication number 20180042812
    • Publication date Feb 15, 2018
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FOOT SPA WITH UV LIGHTS
    • Publication number 20170071822
    • Publication date Mar 16, 2017
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    FOOT SPA
    • Publication number 20160175190
    • Publication date Jun 23, 2016
    • Chris Alexander
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    NAIL DRYER
    • Publication number 20150230582
    • Publication date Aug 20, 2015
    • Gulfstream Plastics Ltd.
    • Chris Alexander
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    INDUCTIVE COUPLING
    • Publication number 20150101117
    • Publication date Apr 16, 2015
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Lighting System for Pedicure Spa
    • Publication number 20130323092
    • Publication date Dec 5, 2013
    • GULFSTREAM INC.
    • Minh Sang Tran
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    INDUCTIVE COUPLING
    • Publication number 20130269098
    • Publication date Oct 17, 2013
    • Minh Sang Tran
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Water Impeller
    • Publication number 20130136620
    • Publication date May 30, 2013
    • Gulfstream, Inc.
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pedicure Spa Station with Separate Integrated Drain
    • Publication number 20130019394
    • Publication date Jan 24, 2013
    • Minh Sang Tran
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Lighting System for Pedicure Spa
    • Publication number 20120127695
    • Publication date May 24, 2012
    • GULFSTREAM INC.
    • Minh Sang Tran
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Impeller for a Magnetic Pump and Novel Impeller Housing Design
    • Publication number 20110223047
    • Publication date Sep 15, 2011
    • Minh Sang Tran
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Impeller for a magnetic pump and novel impeller housing design
    • Publication number 20110176943
    • Publication date Jul 21, 2011
    • GULFSTREAM PLASTICS, LTD.
    • Minh Sang Tran
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES