| Patents for C09D 13 - Pencil-leads; Crayon compositions; Chalk compositions (802) |
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| 01/27/2011 | WO2011009535A1 Writing substance for writing, drawing and/or painting tools |
| 01/27/2011 | CA2767216A1 Writing substance for writing, drawing and/or painting tools |
| 01/25/2011 | CA2538034C A simple and efficient process for the preparation of pencil lead from spent pot-liners |
| 01/20/2011 | DE202009018084U1 Malmine Malmine |
| 01/19/2011 | CN101948644A Preparation method of attapulgite-based dustless color chalks |
| 01/06/2011 | US20110002974 Random and non-random alkylene oxide polymer alloy compositions |
| 12/01/2010 | CN201659780U Pencil for computer tablet |
| 11/18/2010 | WO2010131845A1 Lead for mechanical pencils |
| 11/17/2010 | CN101885930A Multifunctional water-soluble chalk and manufacture method thereof |
| 11/11/2010 | WO2010128713A1 Production method for chalk using natural minerals |
| 10/28/2010 | WO2010123070A1 Pencil lead and method for producing same |
| 10/28/2010 | US20100273914 Crayon |
| 10/12/2010 | US7812068 Recording ink, inkjet recording method and inkjet recording apparatus using the same |
| 09/28/2010 | US7803220 color lead that similar to a pencil guarantees a very simple and residue free erasing ability of the line on light as well as on dark backgrounds and that, in addition, has very good gliding properties on application medium or substrate; includes coloring material, binder, solid organic lubricant, filler |
| 09/22/2010 | CN101177559B Dust-free traditional medicine sanitation chalk and method for producing the same |
| 09/15/2010 | CN201580112U Spiral pencil core |
| 09/15/2010 | CN201580111U Double-ring pencil lead |
| 09/15/2010 | CN201580110U Four-ring-shaped pencil-lead |
| 09/15/2010 | CN201580109U Three-ring pencil lead |
| 09/15/2010 | CN201580108U Elliptic pencil-lead |
| 09/15/2010 | CN201580107U Cross-shaped pencil lead |
| 09/15/2010 | CN101831218A Environment-friendly dustless biochemical chalk and making method thereof |
| 09/15/2010 | CN101033354B Water-based multipurpose painting pen |
| 08/25/2010 | CN101412868B Solid fluorescent paintbrush |
| 08/18/2010 | CN101805544A Washable wax pencil |
| 08/18/2010 | CN101805543A Fluorescent lead refill |
| 08/18/2010 | CN101550301B Biochemical chalk and preparation method thereof |
| 07/20/2010 | US7758268 Hand held photochromic marking implement |
| 06/02/2010 | CN101386725B Solid colorful writing pen |
| 06/01/2010 | US7726802 Ink set for inkjet recording, and image recording method and image recording apparatus |
| 05/12/2010 | CN101705034A Water-soluble dustfree chalks |
| 04/14/2010 | EP2174998A1 Crayon |
| 03/31/2010 | CN101684220A Ingredients of color pencil lead |
| 03/24/2010 | EP1272577B1 Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments |
| 03/23/2010 | US7682437 Transparent solid marker |
| 03/09/2010 | US7674330 ink comprising a pigment, a dispersing agent, a liquid medium, and an alkali metal salt of a malonic acid derivative; superior in fastness property such as water resistance or light-fastness property |
| 01/28/2010 | DE102008034015A1 Schreib-, Zeichen-, Mal- oder Kosmetikstift Writing, drawing, painting or cosmetic pencil |
| 01/28/2010 | DE102008034014A1 Mine für Schreib-, Zeichen- und/oder Malgeräte Mine for writing, drawing and / or painting devices |
| 01/21/2010 | WO2010006742A1 Pencil lead for writing, drawing and/or painting devices |
| 01/21/2010 | US20100016471 Crayon and process for producing the same |
| 01/21/2010 | DE102008034013A1 Holzersatzwerkstoff sowie dessen Verwendung Wood substitute material and its use |
| 01/21/2010 | CA2731049A1 Pencil lead for writing, drawing and/or painting devices |
| 01/20/2010 | CN100582176C Lead for writing, drawing or painting instruments |
| 12/31/2009 | US20090326096 Crayon and process for producing the same |
| 12/17/2009 | DE102008028445A1 Mine für Schreib-, Zeichen- und/oder Malgeräte und Verfahren zu deren Herstellung Refill for writing, drawing and / or painting devices and methods for their preparation |
| 12/16/2009 | EP2133214A1 Cartridge for writing, illustrating and/or marking devices and manufacturing method |
| 12/16/2009 | CN101602305A Cartridge for writing, illustrating and/or marking devices and manufacturing method |
| 12/03/2009 | DE102009022552A1 Transparenter fester Marker Transparent solid marker |
| 11/18/2009 | CN101580666A Liquid chalk |
| 10/21/2009 | CN101559688A Erasable colorful wax pencil |
| 10/07/2009 | CN101550301A Biochemical chalk and preparation method thereof |
| 10/01/2009 | US20090247668 Process for production of black crayon |
| 08/27/2009 | DE202008009734U1 Mine für Schreib-, Zeichen- und/oder Malgeräte Mine for writing, drawing and / or painting devices |
| 08/20/2009 | US20090209678 Crayon |
| 08/19/2009 | CN101511954A Crayon and method for producing the same |
| 08/19/2009 | CN101511953A Crayon and method for producing the same |
| 08/11/2009 | US7572325 Ink carriers, phase change inks including same and methods for making same |
| 07/30/2009 | DE202008008014U1 Mine für Schreib-, Zeichen- und/oder Malgeräte Mine for writing, drawing and / or painting devices |
| 07/22/2009 | CN101490186A Process for production of black crayon |
| 07/22/2009 | CN101490185A Crayon |
| 06/17/2009 | CN101457055A Water-base liquid chalk |
| 06/16/2009 | US7547355 Solid drawing material |
| 06/10/2009 | EP2067832A1 Crayon and method for producing the same |
| 06/10/2009 | CN100497503C Edible color paint pen material for drawing on edible food and special color painting pen |
| 06/03/2009 | EP2065450A1 Crayon and method for producing the same |
| 05/26/2009 | CA2472286C Pigment-containing gel mass based on lipids |
| 05/06/2009 | EP2055733A1 Lead |
| 04/30/2009 | DE102007051279A1 Colorant preparation, useful for tinting a cleanser, preferably softener or detergents, inks, crayons and markers, comprises coloring agent from acid-, polymer-, reactive- or solvent-dye, and oligo- or polyester-compounds |
| 04/29/2009 | EP2053106A1 Crayon |
| 04/29/2009 | EP2053105A1 Process for production of black crayon |
| 04/22/2009 | CN101412868A Solid fluorescent paintbrush |
| 04/22/2009 | CN101412867A Preparation of lead for color pencil |
| 04/15/2009 | CN101410464A Aqueous solid paint composition comprising a salt of a fattyacid |
| 03/18/2009 | CN101386725A Solid colorful writing pen |
| 03/05/2009 | DE102007040928A1 Polyglycerinhaltige Farbmittel Polyglycerol colorant |
| 02/26/2009 | DE102007039783A1 Wässrige Pigmentpräparationen mit anionischen Additiven auf Allyl- und Vinyletherbasis Aqueous pigment preparations with anionic additives on allyl vinyl ether and |
| 02/26/2009 | DE102007039781A1 Wässrige Pigmentpräparationen mit nichtionischen Additiven auf Allyl- und Vinyletherbasis Aqueous pigment preparations with non-ionic additives on allyl vinyl ether and |
| 02/18/2009 | CN100462412C Tunnel fireproof paint based on nano-surface-treatment technology and method for making same |
| 02/10/2009 | US7488699 Hollow mesoporous carbon electrode-catalyst for direct methanol fuel cell and preparation thereof |
| 02/10/2009 | US7488379 For applying powder (chalk) to surface; water repellent coating applying by spraying or immersion; to lay out dimensional or building lines for workers in the construction industry |
| 02/03/2009 | CA2405199C Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments |
| 01/15/2009 | WO2009008437A1 Crayon |
| 01/07/2009 | CN101338097A Special lead of pencil |
| 12/04/2008 | US20080295347 Moisture resistant chalk line composition for use with chalk line devices |
| 12/03/2008 | CN101314299A Pencil lead with film on surface, film material selection and film application method |
| 11/27/2008 | WO2008143486A1 Improvements in flavoured edible crayons |
| 11/26/2008 | CN101310633A Extensible invisible metal marker for cloth, leather and preparation method thereof |
| 11/20/2008 | DE102007021870A1 Wässrige Pigmentpräparationen Aqueous pigment preparations |
| 11/20/2008 | DE102007021867A1 Pigmentpräparationen auf Wasserbasis Water-based pigment preparations |
| 11/12/2008 | CN100432166C Tailor's chalk capable of fading and preparation method thereof |
| 11/11/2008 | US7449500 Ink jet ink containing multimetallic polymeric colorants |
| 10/15/2008 | CN100425661C Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments |
| 10/02/2008 | US20080236442 Chalk line device, waterproof chalk composition, and method |
| 09/26/2008 | CA2627203A1 Chalk line device, waterproof chalk composition, and method |
| 09/23/2008 | CA2297348C Washable marking composition |
| 09/17/2008 | CN101264711A Pencil-lead with film at surface |
| 08/21/2008 | WO2007136549A3 Composition for treatment of roadway |
| 08/12/2008 | CA2333071C Erasable colored pencil lead |
| 08/06/2008 | CN100408352C Resin composite material pencil |
| 06/18/2008 | EP1084198B2 Effect pigments coated with reactive orientation auxiliary agents |