TREA

Zeng Jian

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  • Taipei, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air valve structure
    • Patent number 11,982,369
    • Issue date May 14, 2024
    • TANGTRING SEATING TECHNOLOGY INC.
    • Tsun-Hsiang Wen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air valve
    • Patent number 11,781,669
    • Issue date Oct 10, 2023
    • TANGTRING SEATING TECHNOLOGY INC.
    • Tsun-Hsiang Wen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Thermal transfer printing device
    • Patent number 8,537,187
    • Issue date Sep 17, 2013
    • Primax Electronics Ltd.
    • Jian Zeng
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Clutch transmission mechanism of printing device
    • Patent number 8,366,097
    • Issue date Feb 5, 2013
    • Primax Electronics Ltd.
    • Tung-Wen Tu
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Document-feeding device with improved sheet-separating structure
    • Patent number 7,798,485
    • Issue date Sep 21, 2010
    • Primax Electronics Ltd.
    • Tung-Wen Tu
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR VALVE STRUCTURE
    • Publication number 20230392707
    • Publication date Dec 7, 2023
    • TangTring Seating Technology Inc.
    • Tsun-Hsiang WEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    THERMAL TRANSFER PRINTING DEVICE
    • Publication number 20130208072
    • Publication date Aug 15, 2013
    • Primax Electronics Ltd.
    • Jian Zeng
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    CLUTCH TRANSMISSION MECHANISM OF PRINTING DEVICE
    • Publication number 20110198181
    • Publication date Aug 18, 2011
    • Primax Electronics Ltd.
    • Tung-Wen Tu
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    DOCUMENT-FEDDING DEVICE WITH IMPROVED SHEET-SEPARATING STRUCTURE
    • Publication number 20080309000
    • Publication date Dec 18, 2008
    • Primax Electronics Ltd.
    • Tung-Wen Tu
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL