TREA

Er Ren Zhong

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Paper scrap pushing structure of paper shredder
    • Patent number 11,801,515
    • Issue date Oct 31, 2023
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Automatic shredder
    • Patent number 11,684,928
    • Issue date Jun 27, 2023
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Er Ren Zhong
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Automatic paper shredder
    • Patent number 11,090,657
    • Issue date Aug 17, 2021
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Paper shredder with paper limiter
    • Patent number 11,084,041
    • Issue date Aug 10, 2021
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Automatic paper shredder with staple removing structure and staple...
    • Patent number 11,052,402
    • Issue date Jul 6, 2021
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

  • Information Patent Application

    AUTOMATC SHREDDER
    • Publication number 20220118460
    • Publication date Apr 21, 2022
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Er Ren Zhong
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    PAPER SCRAP PUSHING STRUCTURE OF PAPER SHREDDER
    • Publication number 20220105518
    • Publication date Apr 7, 2022
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    AUTOMATIC PAPER SHREDDER WITH STAPLE REMOVING STRUCTURE AND STAPLE...
    • Publication number 20210138478
    • Publication date May 13, 2021
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    PAPER SCRAP PUSHING STRUCTURE OF PAPER SHREDDER
    • Publication number 20210114040
    • Publication date Apr 22, 2021
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    PAPER SHREDDER WITH PAPER LIMITER
    • Publication number 20210086190
    • Publication date Mar 25, 2021
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    AUTOMATIC PAPER SHREDDER
    • Publication number 20200276594
    • Publication date Sep 3, 2020
    • Aurora Office Equipment Co., Ltd. Shanghai
    • Chung Shih Tsai
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...