TREA

Circular curve-drawing or like instruments

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Industry

  • CPC
  • B43L9/00
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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

Current Industry

B43L9/00Circular curve-drawing or like instruments

Sub Industries

B43L9/002with perforated or marked discs B43L9/005with rollers or carriages B43L9/007with perforated or marked rulers B43L9/02Compasses B43L9/025Compasses with parallel legs B43L9/04Beam compasses B43L9/045Tape compasses B43L9/06with legs formed by flat springs B43L9/08Proportional compasses or dividers B43L9/10with arrangements for drawing polygons B43L9/12Dividers B43L9/14with changeable leg-ends for conversion into compasses, dividers, or callipers B43L9/16Features common to compasses, dividers, and callipers B43L9/18Legs with toggle joints B43L9/20Pivots B43L9/22Leg-angle adjusting-means separate from pivots B43L9/24Means for mounting points or writing appliances on legs B43L9/245for mounting centering elements
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Centerless drafting tool
    • Patent number 11,999,186
    • Issue date Jun 4, 2024
    • Glen Kalen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sliding adjustable compass having a support
    • Patent number 11,953,319
    • Issue date Apr 9, 2024
    • Macario A. Sanchez
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Equal divider
    • Patent number 11,951,766
    • Issue date Apr 9, 2024
    • Tai-Yu Lee
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Carpenter pencil caliper
    • Patent number 11,660,906
    • Issue date May 30, 2023
    • Jonathan Noorani
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Framing square
    • Patent number 11,110,739
    • Issue date Sep 7, 2021
    • Milwaukee Electric Tool Corporation
    • Eric Mackey
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multifunctional writing device for automatic exam proctoring and gr...
    • Patent number 11,084,318
    • Issue date Aug 10, 2021
    • hetal b. Kurani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pitcher's circle compass
    • Patent number 10,639,928
    • Issue date May 5, 2020
    • Edgar R Johnson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cutting device for cutting of a round
    • Patent number 10,471,616
    • Issue date Nov 12, 2019
    • National Taiwan Normal University
    • Jung-Hsuan Chen
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Plotter apparatus and methods for drawing a polygon inscribed withi...
    • Patent number 10,272,716
    • Issue date Apr 30, 2019
    • Hojjatollah Salimi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Geometric divider
    • Patent number 10,232,664
    • Issue date Mar 19, 2019
    • Hojjatollah Salimi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multi-tool assembly
    • Patent number 10,150,222
    • Issue date Dec 11, 2018
    • Daniel J. Raymond
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Educational ruler
    • Patent number 9,897,427
    • Issue date Feb 20, 2018
    • Zhi Shang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Scalable rules capable of creating size-adjustable circles, arcs, a...
    • Patent number 9,772,172
    • Issue date Sep 26, 2017
    • Frank Pinal
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Multi-tool assembly
    • Patent number 9,751,223
    • Issue date Sep 5, 2017
    • Dan-O-Tool, LLC
    • Daniel J. Raymond
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    System and a method for drawing arcs and circle
    • Patent number 9,457,612
    • Issue date Oct 4, 2016
    • Farhad Ghorbanloo
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    System and a method for drawing arcs and circle
    • Patent number 9,308,771
    • Issue date Apr 12, 2016
    • Farhad Ghorbanloo
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Measuring and/or plotting and/or sighting instrument
    • Patent number 9,250,072
    • Issue date Feb 2, 2016
    • Robert Lévy
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Wheeled compass
    • Patent number 9,073,381
    • Issue date Jul 7, 2015
    • King Saud University
    • Mohamed Yossry Elmassry
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Circle marking device
    • Patent number 8,806,766
    • Issue date Aug 19, 2014
    • David M. Lee
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Circle making tool
    • Patent number 8,782,912
    • Issue date Jul 22, 2014
    • Speedy Circle Manufacturing LLC
    • Eric A. Jensen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Segmented measuring assembly and method of use
    • Patent number 8,782,914
    • Issue date Jul 22, 2014
    • Gregory G. DeLuca
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Straight edge circle tool
    • Patent number 8,458,916
    • Issue date Jun 11, 2013
    • Philip Cyril Aplin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Combined set of interacting instruments
    • Patent number 8,371,035
    • Issue date Feb 12, 2013
    • Mohammed Marzouq Khalaf Al-Mutairi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Wallboard cutting tool
    • Patent number 8,272,136
    • Issue date Sep 25, 2012
    • Craig A. Vogeler
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Layout positioning device
    • Patent number 8,261,463
    • Issue date Sep 11, 2012
    • The Antioch Company, LLC
    • Bobbi Trisko
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pair of compasses
    • Patent number 8,132,333
    • Issue date Mar 13, 2012
    • Draw.Tec GmbH & Co. KG
    • Oliver Seelig
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Hinged measuring and marking device
    • Patent number 8,074,368
    • Issue date Dec 13, 2011
    • Raymond E. Atwood
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compasses writing implement
    • Patent number 8,042,278
    • Issue date Oct 25, 2011
    • Fritz Lüttgens
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Apparatus and a method for drafting a framework for a pattern
    • Patent number 7,946,042
    • Issue date May 24, 2011
    • Debra Williams
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Compass having a leg joint and information bearing surfaces
    • Patent number 7,937,843
    • Issue date May 10, 2011
    • Intertech Zeichengeraete GmbH
    • Günther Partes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    EQUAL DIVIDER
    • Publication number 20240083193
    • Publication date Mar 14, 2024
    • SENTOU INDUSTRY CO., LTD.
    • Tai-Yu LEE
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CENTERLESS COMPASS
    • Publication number 20230256770
    • Publication date Aug 17, 2023
    • Glen Kalen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Woodworking Circle-Drawing Tool
    • Publication number 20230147660
    • Publication date May 11, 2023
    • Ryan Alexander Smit
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    CARPENTER PENCIL CALIPER
    • Publication number 20230091014
    • Publication date Mar 23, 2023
    • Jonathan Noorani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Sliding Adjustable Compass Having a Support
    • Publication number 20220236044
    • Publication date Jul 28, 2022
    • Macario A. Sanchez
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    APPARATUS AND PROCESS FOR DRAWING LINES
    • Publication number 20190204936
    • Publication date Jul 4, 2019
    • Kronos S.r.l.
    • Roberto LEPORATI
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    CUTTING DEVICE FOR CUTTING OF A ROUND
    • Publication number 20190001514
    • Publication date Jan 3, 2019
    • National Taiwan Normal University
    • Jung-Hsuan Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SYSTEM AND A METHOD FOR DRAWING ARCS AND CIRCLE
    • Publication number 20160185153
    • Publication date Jun 30, 2016
    • Farhad Ghorbanloo
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SYSTEM AND A METHOD FOR DRAWING ARCS AND CIRCLE
    • Publication number 20160023502
    • Publication date Jan 28, 2016
    • Farhad Ghorbanloo
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Multi-Tool Assembly
    • Publication number 20150082642
    • Publication date Mar 26, 2015
    • Dan-O-Tools, LLC
    • Daniel J. Raymond
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SCALABLE RULER CAPABLE OF CREATING SIZE-ADJUSTABLE CIRCLES, ARCS, &...
    • Publication number 20140373367
    • Publication date Dec 25, 2014
    • KOALA TOOLS, LLC
    • Frank Pinal
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MEASURING AND/OR PLOTTING AND/OR SIGHTING INSTRUMENT
    • Publication number 20140360038
    • Publication date Dec 11, 2014
    • Robert Lévy
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    COMBINED SET OF INTERACTING INSTRUMENTS
    • Publication number 20120079729
    • Publication date Apr 5, 2012
    • Mohammed Marzouq Khalaf Al-Mutairi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    LAYOUT POSITIONING DEVICE
    • Publication number 20120023767
    • Publication date Feb 2, 2012
    • THE ANTIOCH COMPANY, LLC
    • Bobbi Trisko
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Straight edge circle tool
    • Publication number 20110296700
    • Publication date Dec 8, 2011
    • Philip Cyril Aplin
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Wallboard cutting tool
    • Publication number 20110162220
    • Publication date Jul 7, 2011
    • Craig A. Vogeler
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    COMPASS HAVING A LEG JOINT AND INFORMATION BEARING SURFACES
    • Publication number 20110000094
    • Publication date Jan 6, 2011
    • INTERTECH ZEICHENGERATE GMBH
    • Gunther Partes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PAIR OF COMPASSES
    • Publication number 20100307014
    • Publication date Dec 9, 2010
    • DRAW.TEC GMBH & CO. KG
    • Oliver Seelig
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    COMPASSES WRITING IMPLEMENT
    • Publication number 20100139104
    • Publication date Jun 10, 2010
    • KUM Limited
    • Fritz Luttgens
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    HINGED MEASURING AND MARKING DEVICE
    • Publication number 20100139106
    • Publication date Jun 10, 2010
    • Raymond E. Atwood
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    DRAWING APPARATUS UTILIZING MEASURING TAPE
    • Publication number 20100115777
    • Publication date May 13, 2010
    • Arinoll Lee
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Apparatus and a Method for Drafting a Framework for a Pattern
    • Publication number 20100083514
    • Publication date Apr 8, 2010
    • Debra Williams
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MEASURING COMPASS
    • Publication number 20100000101
    • Publication date Jan 7, 2010
    • Yu-Ming Tu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    FLAT COMPASS FOR MARKING LARGE ARCSAND CIRCLES
    • Publication number 20100000102
    • Publication date Jan 7, 2010
    • Amaury D. Contreras
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    SYSTEM AND METHOD FOR CREATING PURPORTIONATELY ACCURATE FIGURES
    • Publication number 20090211104
    • Publication date Aug 27, 2009
    • Gregg B. Thorkelson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Multi-functional carpentry tool
    • Publication number 20090193670
    • Publication date Aug 6, 2009
    • Patrick Fernandes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Adjustable Rotary Structure
    • Publication number 20090151175
    • Publication date Jun 18, 2009
    • Tsai-Lian Chen LIN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Universal marker holder
    • Publication number 20090025235
    • Publication date Jan 29, 2009
    • Danny Larry Jabocs
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    MULTI PURPOSE ADJUSTABLE MEASURING GAUGE
    • Publication number 20080313912
    • Publication date Dec 25, 2008
    • John Norman Sutter
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Compass with Leg Joint and Information Bearing Surfaces
    • Publication number 20080250658
    • Publication date Oct 16, 2008
    • INTERTECH ZEICHENGERATE GMBH
    • Gunther Partes
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES