TREA

in which the pencils or leads are sharpened mainly by rotational movement against cutting blades

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  • CPC
  • B43L23/08
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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

B43L23/08in which the pencils or leads are sharpened mainly by rotational movement against cutting blades
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

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

    Compact tool combining vacuum/blower, pencil sharpener, rubbery era...
    • Patent number 11,787,227
    • Issue date Oct 17, 2023
    • Cary Wang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • 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

    Carpenter speed square with pencil sharpener
    • Patent number 11,648,797
    • Issue date May 16, 2023
    • Barton Steven Wolf
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener for carpenters
    • Patent number 11,446,955
    • Issue date Sep 20, 2022
    • SAFETY NAILER LLC
    • Kristen Eifes
    • 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 having flexible storage cover
    • Patent number 11,318,779
    • Issue date May 3, 2022
    • Shanghai Lees Manufacturing Co., Ltd.
    • Lei Xin Li
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 11,273,666
    • Issue date Mar 15, 2022
    • Samir Moufawad Moufawad
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Portable art case
    • Patent number 11,224,272
    • Issue date Jan 18, 2022
    • Colorpockit, LLC
    • Michael James Bartelme
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Convertible apparatus for sharpening marking instruments
    • Patent number 11,040,568
    • Issue date Jun 22, 2021
    • Phil Hanson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • 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

    Crayon container
    • Patent number 10,993,516
    • Issue date May 4, 2021
    • Crayola, LLC
    • Luis Rodrigo Pineiro
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Three-way marker for sewing
    • Patent number 10,926,575
    • Issue date Feb 23, 2021
    • DPG USA INC.
    • Nikhil Gupta
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 10,906,347
    • Issue date Feb 2, 2021
    • OSAKA CLIP co., LTD.
    • Kazuo Itoi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener
    • Patent number 10,870,309
    • Issue date Dec 22, 2020
    • Yoshikazu Tani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Portable motorized cosmetic sharpener system
    • Patent number 10,792,954
    • Issue date Oct 6, 2020
    • SI/TKO Holdings, Inc.
    • Ryan Christopher Jones
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Crayon manipulation devices
    • Patent number 10,471,622
    • Issue date Nov 12, 2019
    • Crayola LLC
    • David Volzer
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • 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

    Pencil cutting tool
    • Patent number 10,265,998
    • Issue date Apr 23, 2019
    • NAKAJIMA JUKYUDO CO., LTD
    • Junya Nakajima
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener holder attachment
    • Patent number 10,016,049
    • Issue date Jul 10, 2018
    • Alex Francillon
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Reciprocating pencil sharpener
    • Patent number 9,969,207
    • Issue date May 15, 2018
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Automatic cover-opening device
    • Patent number 9,694,624
    • Issue date Jul 4, 2017
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil holder for storing a pencil
    • Patent number 9,656,508
    • Issue date May 23, 2017
    • Gerhard Moeck
    • 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

    Cangaroo sharpener with disposable pouch
    • Patent number 9,505,551
    • Issue date Nov 29, 2016
    • Cherie Ann Elliot
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil
    • Patent number 9,408,454
    • Issue date Aug 9, 2016
    • Schwan-STABILO Cosmetics GmbH & Co. KG
    • Ralf Schmidt
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Adjustable pencil sharpener
    • Patent number 9,248,691
    • Issue date Feb 2, 2016
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Reciprocating pencil sharpener
    • Patent number 9,227,460
    • Issue date Jan 5, 2016
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Shaper
    • Patent number 8,939,667
    • Issue date Jan 27, 2015
    • Avon Products, Inc.
    • Harold E. Pahlck
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sharpener, especially for a cosmetic or pharmaceutical pencil
    • Patent number 8,881,410
    • Issue date Nov 11, 2014
    • KUM Limited
    • Fritz Luettgens
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • 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

    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

    CARPENTER SPEED SQUARE WITH PENCIL SHARPENER
    • Publication number 20220234380
    • Publication date Jul 28, 2022
    • Wolf Innovations LLC
    • Barton Steven Wolf
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER HAVING FLEXIBLE STORAGE COVER
    • Publication number 20210268830
    • Publication date Sep 2, 2021
    • SHANGHAI LEES MANUFACTURING CO., LTD.
    • Lei Xin LI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER FOR CARPENTERS
    • Publication number 20210078356
    • Publication date Mar 18, 2021
    • SAFETY NAILER LLC
    • Kristen Eifes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    COMPACT TOOL COMBINING VACUUM/BLOWER, PENCIL SHARPENER, RUBBERY ERA...
    • Publication number 20200331287
    • Publication date Oct 22, 2020
    • Cary Wang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    PORTABLE ART CASE
    • Publication number 20200214412
    • Publication date Jul 9, 2020
    • Colorpockit LLC
    • Michael James Bartelme
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    Pencil Sharpener Assembly
    • Publication number 20190308443
    • Publication date Oct 10, 2019
    • Sunwood Holding Group Co., Ltd.
    • Xiasen Lin
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    Crayon Container
    • Publication number 20190246759
    • Publication date Aug 15, 2019
    • Crayola, LLC
    • Luis Rodrigo Pineiro
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    PENCIL SHARPENER
    • Publication number 20190126664
    • Publication date May 2, 2019
    • OSAKA CLIP co., LTD
    • Kazuo ITOI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil Sharpening Device With Flashlight
    • Publication number 20190041053
    • Publication date Feb 7, 2019
    • James H. Huizinga
    • F21 - LIGHTING
  • Information Patent Application

    PENCIL SHARPENER HAVING A GUIDE ELEMENT FOR DISCHARGING SHAVINGS
    • Publication number 20180281505
    • Publication date Oct 4, 2018
    • Fritz Luttgens
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SHARPENER
    • Publication number 20180117953
    • Publication date May 3, 2018
    • Tokiwa Corporation
    • Yoshikazu Tani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    EPAD SYSTEM AND METHOD
    • Publication number 20180056707
    • Publication date Mar 1, 2018
    • MARK EVANS
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CRAYON MANIPULATION DEVICES
    • Publication number 20170355093
    • Publication date Dec 14, 2017
    • Crayola, LLC
    • DAVID VOLZER
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER
    • Publication number 20170326905
    • Publication date Nov 16, 2017
    • Sung Bum PARK
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL CUTTING TOOL
    • Publication number 20170313123
    • Publication date Nov 2, 2017
    • NAKAJIMA JUKYUDO CO., LTD
    • Junya NAKAJIMA
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Combination Office Supply Tool
    • Publication number 20170252913
    • Publication date Sep 7, 2017
    • LaDale Bishop
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PORTABLE MOTORIZED COSMETIC SHARPENER SYSTEM
    • Publication number 20170050462
    • Publication date Feb 23, 2017
    • RYAN CHRISTOPHER JONES
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENING FOOTWEAR DEVICE
    • Publication number 20160174662
    • Publication date Jun 23, 2016
    • Maritza H. Broche
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    RECIPROCATING PENCIL SHARPENER
    • Publication number 20160068009
    • Publication date Mar 10, 2016
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • 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 PLANING KNIFE
    • Publication number 20150082956
    • Publication date Mar 26, 2015
    • Zongmao LOU
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    HOLE CLOSURE DEVICE
    • Publication number 20140090258
    • Publication date Apr 3, 2014
    • FRITZ LUETTGENS
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil Sharpener
    • Publication number 20140075681
    • Publication date Mar 20, 2014
    • Walter Hammer
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL
    • Publication number 20140064819
    • Publication date Mar 6, 2014
    • Schwan-STABILO Cosmetics GmbH & Co. KG
    • Ralf Schmidt
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ADJUSTABLE PENCIL SHARPENER
    • Publication number 20140000119
    • Publication date Jan 2, 2014
    • SDI Corporation
    • Szu-Yu CHEN
    • 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

    Dual Drive Pencil Sharpener
    • Publication number 20130174429
    • Publication date Jul 11, 2013
    • Richard Steven Constantine
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES