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  • CPC
  • B43L23/02
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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

B43L23/02with gearing
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Sharpeners for writing instruments
    • Patent number 12,103,330
    • Issue date Oct 1, 2024
    • SANFORD, L.P.
    • Michael Alan Jourden
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 11,999,185
    • Issue date Jun 4, 2024
    • Fritz Lüttgens
    • B08 - CLEANING
  • Information Patent Grant

    Sharpener with heating element
    • Patent number 11,712,919
    • Issue date Aug 1, 2023
    • Regina M. Garcia
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener with heating element
    • Patent number 11,370,245
    • Issue date Jun 28, 2022
    • Regina M. Garcia
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener with pencil-centering mechanism
    • Patent number 10,843,504
    • Issue date Nov 24, 2020
    • Sanford L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cutter-carrier assembly for use with pencil sharpeners
    • Patent number 10,843,503
    • Issue date Nov 24, 2020
    • Sanford L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 10,703,129
    • Issue date Jul 7, 2020
    • NINGBO WEISHU STATIONERY CO., LTD
    • Changhai Dai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener with heating element
    • Patent number 10,442,237
    • Issue date Oct 15, 2019
    • Regina M. Garcia
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 10,442,238
    • Issue date Oct 15, 2019
    • Ningbo Tiantian Stationery Co., Ltd.
    • Chongting Zheng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 10,377,168
    • Issue date Aug 13, 2019
    • SUNWOOD HOLDING GROUP CO., LTD.
    • Xiasen Lin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Self-cleaning gear assembly for pencil sharpeners
    • Patent number 10,207,535
    • Issue date Feb 19, 2019
    • SANFORD, L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener with pencil-centering mechanism
    • Patent number 10,124,622
    • Issue date Nov 13, 2018
    • SANFORD, L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Dual cutter-carrier assembly for use with pencil sharpeners
    • Patent number 9,956,812
    • Issue date May 1, 2018
    • SANFORD, L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Energy-storage pen implement sharpener
    • Patent number 9,676,226
    • Issue date Jun 13, 2017
    • Chun-Hung Wu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Fully-automatic pencil sharpener
    • Patent number 9,669,651
    • Issue date Jun 6, 2017
    • GuangZhou PanYu Tung Yung Stationery MFY., LTD.
    • Liangchun Zhong
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener with a replaceable cutter assembly
    • Patent number 9,555,661
    • Issue date Jan 31, 2017
    • SDI Corporation
    • Che-Chang Cheng
    • 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

    Hand-cranked pencil sharpeners
    • Patent number 8,459,317
    • Issue date Jun 11, 2013
    • Yurisheng Electronic (Shenzhen) Co., Ltd
    • Jingyi Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener with autostop feature
    • Patent number 8,353,323
    • Issue date Jan 15, 2013
    • Elmer's Products, Inc.
    • Michael Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener with noise reducing features
    • Patent number 8,225,827
    • Issue date Jul 24, 2012
    • Elmer's Products, Inc.
    • Ben Dunlap
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electronic pencil sharpener
    • Patent number 8,205,648
    • Issue date Jun 26, 2012
    • Chia-Wen Hsu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 8,196,624
    • Issue date Jun 12, 2012
    • Acme United Corporation
    • Stuart David Farnworth
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 8,118,071
    • Issue date Feb 21, 2012
    • Charles Sued
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    More silent and robust electric pencil sharpener
    • Patent number 8,016,004
    • Issue date Sep 13, 2011
    • Anwar Farooq
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil-sharpening device
    • Patent number 7,934,319
    • Issue date May 3, 2011
    • Acme United Corporation
    • Michael E. Peterson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 7,913,731
    • Issue date Mar 29, 2011
    • Charles Sued
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 7,726,365
    • Issue date Jun 1, 2010
    • Ringsun (Shenzhen) Industrial Limited
    • Jingyi Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric multi-pencil sharpener
    • Patent number 7,699,082
    • Issue date Apr 20, 2010
    • Yurisheng Electronic (Shenzhen) Co., Ltd
    • Yuhua Andy Peng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 7,669,619
    • Issue date Mar 2, 2010
    • Yurisheng Electronic (Shenzhen) Co., Ltd
    • Hongtao Sun
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Crayon sharpener
    • Patent number 7,654,179
    • Issue date Feb 2, 2010
    • Elmer's Products, Inc.
    • Michael Parrish
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    SHARPENERS FOR WRITING INSTRUMENTS
    • Publication number 20240075766
    • Publication date Mar 7, 2024
    • Sanford L.P.
    • Michael Alan Jourden
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER WITH VARIABLE HEATING ELEMENT
    • Publication number 20230391132
    • Publication date Dec 7, 2023
    • Kevin J CONWAY
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Electric Pencil Sharpener With Delay Function
    • Publication number 20230256771
    • Publication date Aug 17, 2023
    • Dongguan In-mind Technology Co., Ltd.
    • Weidong Qiu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil sharpener
    • Publication number 20220324251
    • Publication date Oct 13, 2022
    • Fritz Luttgens
    • B08 - CLEANING
  • Information Patent Application

    SHARPENER WITH HEATING ELEMENT
    • Publication number 20220305841
    • Publication date Sep 29, 2022
    • Regina M. Garcia
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER WITH HEATING ELEMENT
    • Publication number 20190389239
    • Publication date Dec 26, 2019
    • Regina M. GARCIA
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    PENCIL SHARPENER WITH PENCIL-CENTERING MECHANISM
    • Publication number 20190061414
    • Publication date Feb 28, 2019
    • Sanford, L.P.
    • Michael J. SCHUMACHER
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Electric Pencil Sharpener
    • Publication number 20190001738
    • Publication date Jan 3, 2019
    • Sunwood Holding Group Co., Ltd.
    • Xiasen Lin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ELECTRIC PENCIL SHARPENER
    • Publication number 20180319203
    • Publication date Nov 8, 2018
    • NINGBO WEISHU STATIONERY CO., LTD
    • Changhai DAI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ELECTRIC PENCIL SHARPENER
    • Publication number 20180236809
    • Publication date Aug 23, 2018
    • Ningbo Tiantian Stationery Co., Ltd.
    • Chongting Zheng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Cutter-Carrier Assembly For Use With Pencil Sharpeners
    • Publication number 20180222247
    • Publication date Aug 9, 2018
    • Sanford, L.P.
    • Michael J. Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER WITH HEATING ELEMENT
    • Publication number 20180056711
    • Publication date Mar 1, 2018
    • Regina M. GARCIA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ELECTRIC PENCIL SHARPENER
    • Publication number 20170361640
    • Publication date Dec 21, 2017
    • Jong Kwan Kim
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    DUAL CUTTER-CARRIER ASSEMBLY FOR USE WITH PENCIL SHARPENERS
    • Publication number 20170190206
    • Publication date Jul 6, 2017
    • ELMER'S PRODUCTS, INC.
    • Michael J. SCHUMACHER
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SELF-CLEANING GEAR ASSEMBLY FOR PENCIL SHARPENERS
    • Publication number 20150129086
    • Publication date May 14, 2015
    • Michael J. SCHUMACHER
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    FULLY-AUTOMATIC PENCIL SHARPENER
    • Publication number 20150000791
    • Publication date Jan 1, 2015
    • GuangZhou PanYu Tung Yung Stationery MFY., LTD.
    • Liangchun ZHONG
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ENERGY-STORAGE PEN IMPLEMENT SHARPENER
    • Publication number 20140209211
    • Publication date Jul 31, 2014
    • CHUN-HUNG WU
    • 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

    AUTOMATIC PENCIL-FEEDING DEVICE FOR PENCIL SHARPENER
    • Publication number 20130255835
    • Publication date Oct 3, 2013
    • FUJIAN SOUNDY ENTERPRISE CO., LTD.
    • Xinfu Wang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ELECTRIC PENCIL SHARPENER WITH A REPLACEABLE CUTTER ASSEMBLY
    • Publication number 20130186517
    • Publication date Jul 25, 2013
    • Che-Chang Cheng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER WITH TWO BLADES
    • Publication number 20120233867
    • Publication date Sep 20, 2012
    • CHOON NANG ENERGY EQUIPMENT MFY., LTD.
    • Fat Wai Bill FONG
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil Sharpener
    • Publication number 20110290376
    • Publication date Dec 1, 2011
    • Anwar M. Farooq
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MORE SILENT AND ROBUST ELECTRIC PENCIL SHARPENER
    • Publication number 20110284129
    • Publication date Nov 24, 2011
    • Anwar M. Farooq
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Electronic Pencil Sharpener
    • Publication number 20110284130
    • Publication date Nov 24, 2011
    • Chia-Wen Hsu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Hand-Cranked Pencil Sharpeners
    • Publication number 20110226383
    • Publication date Sep 22, 2011
    • Yurisheng Electronic (Shenzhen) Co., Ltd.
    • Jingyi Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER
    • Publication number 20110099820
    • Publication date May 5, 2011
    • FOLUCK INTERNATIONAL CO., LTC
    • Ming-Tay HSU
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil Sharpener
    • Publication number 20110041956
    • Publication date Feb 24, 2011
    • Charles Sued
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER WITH NOISE REDUCING FEATURES
    • Publication number 20100326569
    • Publication date Dec 30, 2010
    • ELMER'S PRODUCTS, INC.
    • Ben Dunlap
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER WITH AUTOSTOP FEATURE
    • Publication number 20100326568
    • Publication date Dec 30, 2010
    • ELMER'S PRODUCTS, INC.
    • Michael Schumacher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil sharpener
    • Publication number 20100212781
    • Publication date Aug 26, 2010
    • Stuart David Farnworth
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES