TREA

with radial cutting blades

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Industry

  • CPC
  • B43L23/004
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L23/00Sharpeners for pencils or leads

Current Industry

B43L23/004with radial cutting blades
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Pencil sharpener assembly
    • Patent number 11,034,185
    • Issue date Jun 15, 2021
    • SUNWOOD HOLDING GROUP CO., LTD.
    • Xiasen Lin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener with auto-stop feature
    • Patent number 9,352,608
    • Issue date May 31, 2016
    • Chia-Wen Hsu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Crayons with associated carrying case
    • Patent number 6,887,006
    • Issue date May 3, 2005
    • Timothy E. Carpenter
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 4,918,816
    • Issue date Apr 24, 1990
    • Anthony J. Alpha
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2309272
    • Patent number 2,309,272
    • Issue date Jan 26, 1943
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1842306
    • Patent number 1,842,306
    • Issue date Jan 19, 1932
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1477192
    • Patent number 1,477,192
    • Issue date Dec 11, 1923
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1333740
    • Patent number 1,333,740
    • Issue date Mar 16, 1920
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    SHARPENER FOR MARKING INSTRUMENTS
    • Publication number 20150224816
    • Publication date Aug 13, 2015
    • MELISSA & DOUG, LLC
    • Ken Weiland
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Electric pencil sharpener with auto-stop feature
    • Publication number 20130263971
    • Publication date Oct 10, 2013
    • Chia-Wen Hsu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CRAYON SHARPENER
    • Publication number 20080120848
    • Publication date May 29, 2008
    • Choon Nang Electrical Appliance Manufactory Limited
    • Steven Sze Chun FONG
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES