TREA

Shin Feng

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  • Rowland Heights, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing implement
    • Patent number 12,344,025
    • Issue date Jul 1, 2025
    • Shin Feng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing implement
    • Patent number 10,331,236
    • Issue date Jun 25, 2019
    • Shin Feng
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Writing Implement
    • Publication number 20180178581
    • Publication date Jun 28, 2018
    • Shin Feng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES