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Hu ZHANG

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  • Ningbo, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Skimmer frame
    • Patent number D1055437
    • Issue date Dec 24, 2024
    • Ningbo Dongchuan Swimming Pool Equipment Co., Inc.
    • Huaizhong He
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Pool vacuum head
    • Patent number D1051532
    • Issue date Nov 12, 2024
    • Ningbo Dongchuan Swimming Pool Equipment Co., Inc.
    • Huaizhong He
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Pool vacuum head
    • Patent number D1047329
    • Issue date Oct 15, 2024
    • Ningbo Dongchuan Swimming Pool Equipment Co., Inc.
    • Huaizhong He
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Pool vacuum head
    • Patent number D1043011
    • Issue date Sep 17, 2024
    • Ningbo Dongchuan Swimming Pool Equipment Co., Inc.
    • Huaizhong He
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Pool skimmer frame
    • Patent number D1025527
    • Issue date Apr 30, 2024
    • Ningbo Dongchuan Swimming Pool Equipment Co., Inc.
    • Huaizhong He
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Pool brush head
    • Patent number D985947
    • Issue date May 16, 2023
    • Ningho Dongchuan Swimming Pool Equipment Co., Ltd.
    • Huaizhong He
    • D04 - Brushware
  • Information Patent Grant

    Telescopic aluminum rod
    • Patent number 11,185,972
    • Issue date Nov 30, 2021
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong He
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Floating pool dispenser
    • Patent number 10,094,129
    • Issue date Oct 9, 2018
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong He
    • E04 - BUILDING

Patents Applicationslast 30 patents

  • Information Patent Application

    STRUCTURE FOR ASSEMBLING AND DISASSEMBLING DIRT SUCTION HEAD TO/FRO...
    • Publication number 20220203271
    • Publication date Jun 30, 2022
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong HE
    • E04 - BUILDING
  • Information Patent Application

    STRETCHABLE SCOOP NET
    • Publication number 20210007337
    • Publication date Jan 14, 2021
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong HE
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    UPPER END COVER APPLIED ON FLOATING MEDICINE DISPENSER AND FLOATING...
    • Publication number 20200216234
    • Publication date Jul 9, 2020
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong HE
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    TELESCOPIC ALUMINUM ROD
    • Publication number 20200215681
    • Publication date Jul 9, 2020
    • NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT CO., LTD.
    • Huaizhong HE
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    FLOATING POOL DISPENSER
    • Publication number 20170356209
    • Publication date Dec 14, 2017
    • Ningbo Dongchuan Swimming Pool Equipment Co., Ltd.
    • Huaizhong HE
    • E04 - BUILDING
  • Information Patent Application

    SWIMMING POOL BRUSH
    • Publication number 20170191282
    • Publication date Jul 6, 2017
    • Ningbo Dongchuan Swimming Pool Equipment Co., Ltd.
    • Huaizhong HE
    • A46 - BRUSHWARE