| Patents for B43K 19 - Non-propelling pencils; Styles; Crayons; Chalks (2,388) |
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| 12/15/1999 | EP0963298A1 Method for the production of waxy chalk |
| 12/15/1999 | CN1238270A Method for setting up holding position indicator on pencil |
| 11/16/1999 | US5984550 Writing device |
| 09/29/1999 | CN2340618Y Bullet pencil core for standard test |
| 09/28/1999 | US5957604 Structurally reinforced crayons |
| 09/28/1999 | CA2189829C Method for forming a writing instrument with a compressible friction coating and improved writing instrument |
| 09/22/1999 | CN2339410Y Pencil with wood casing |
| 09/22/1999 | CN2339408Y Decorations changeable pen-holder |
| 08/18/1999 | EP0936082A1 Pencil blanks and methods for making same |
| 08/18/1999 | CN2333546Y Special pencil for standardized exam in college entrance exam |
| 08/18/1999 | CN2333545Y Convenient sanitary chalk |
| 07/28/1999 | CN2330519Y Pencil with simple eraser card |
| 07/14/1999 | CN1222443A Making method and product of wound pen shaft of polymer and synthetic paper |
| 07/08/1999 | DE19758265A1 Pencil board production |
| 07/07/1999 | EP0927790A2 Process for making laminated boards, pencilboards and/or stems for writing-, drawing- or painting instruments |
| 07/01/1999 | DE19758266A1 Pencil board production |
| 06/23/1999 | CN2325227Y Lead of pencil |
| 06/16/1999 | CN2323973Y 无尘粉笔 Chalk dust |
| 06/15/1999 | US5911814 Baked color pencil lead and process for producing the same |
| 06/10/1999 | DE19855325A1 Outer casing material for color, lead and cosmetic pencils |
| 06/10/1999 | DE19754084A1 Drawing pencil, chalk or cosmetic applicator |
| 06/02/1999 | CN2321630Y Triangular prism section pencil |
| 06/02/1999 | CN2321629Y Pencil without sharpening |
| 04/28/1999 | CN2316139Y 铅笔 Pencil |
| 04/13/1999 | US5893671 Ergonomic writing instrument |
| 03/24/1999 | CN2311354Y One-time forming machine for paper pencil |
| 03/03/1999 | CN2309231Y Pencil with square writing-core |
| 02/24/1999 | CN2308511Y Handicraft pen |
| 02/24/1999 | CN1042211C Spring pen |
| 02/11/1999 | WO1999006222A2 Pencils containing reclaimed rubber |
| 01/28/1999 | DE19830929A1 Sintered coloured pencil lead with good intensity and bending strength |
| 01/27/1999 | CN2305293Y Health energy saving pencil |
| 01/20/1999 | CN2304534Y Dual face polishing cutter for pencils |
| 12/16/1998 | CN1041214C Composition of moist dustless chalk |
| 12/02/1998 | CN1040963C Paper-plastic composite pencil shaft and mfg. method therefor |
| 11/18/1998 | CN2297317Y Dust-proof chalk |
| 11/18/1998 | CN2297316Y Pencil with double writing-core |
| 10/28/1998 | CN2295603Y Special pencil core |
| 09/09/1998 | CN2290473Y Easy-to-sharpen pencil |
| 09/03/1998 | DE19706372A1 Verfahren zur Herstellung von Wachskreiden und Verpackungsbehältern für Wachskreiden A process for producing wax crayons and packaging containers for wax crayons |
| 09/01/1998 | US5801215 Baked pencil lead and method for manufacturing the same |
| 08/27/1998 | WO1998036919A1 Method for the production of waxy chalk |
| 08/27/1998 | CA2282316A1 Method for the production of waxy chalk |
| 08/19/1998 | EP0612341B1 Pencil and process for producing pencils |
| 08/19/1998 | CN1190623A 树枝笔 Branches pen |
| 08/19/1998 | CN1039532C Refill container for bar articles |
| 08/12/1998 | CN2287566Y Pencil |
| 07/21/1998 | CA2007243C Writing instrument |
| 07/01/1998 | EP0850784A2 Container with means for selectively extending and retracting a substantially stick-shaped object |
| 06/10/1998 | CN1184037A Chinese medicine chalk and its production process |
| 04/22/1998 | EP0836846A1 Pencil lead for colour pencils, cosmetic pencils and colour chalks and process of manufacturing same |
| 04/22/1998 | CN2279267Y Pencil with function of correcting posture and health care |
| 04/21/1998 | US5741353 Aqueous painting agent |
| 04/08/1998 | EP0834351A1 Process and apparatus for coating elongate objects |
| 04/07/1998 | US5735622 Writing instrument with a compressible friction coating and method of making |
| 03/31/1998 | US5733482 Baked color pencil lead manufactured by impregnation with perhydropolysilazane and heat treatment |
| 03/25/1998 | CN1176985A Wood pencil special purpose ultra-violet cured color coating and prepn. method therefor |
| 02/18/1998 | CN2274579Y Shaping-free pencil |
| 01/14/1998 | CN2272369Y Pen for marking computer-read card |
| 01/07/1998 | CN1169450A Chalk, ifs making method and special moulding machine |
| 01/06/1998 | CA2063115C Rigid fiberboard |
| 12/03/1997 | CN2269309Y 绘图铅笔 Drawing Pencil |
| 12/03/1997 | CN2269308Y Purpose-made drawing pencil |
| 11/26/1997 | CN1165751A Pencil with easy-to-sharpen and breaking-proof lead |
| 11/26/1997 | CN1165750A Clean chalk and its prodn. method |
| 11/12/1997 | CN2267162Y Writing-core of pencil to fill the blank for answering examination paper for going over the paper by computer |
| 11/12/1997 | CN1164474A Pencil |
| 10/29/1997 | CN2265901Y Pencil writing-core for drawing computer read card |
| 10/22/1997 | CN1162534A 绘图铅笔 Drawing Pencil |
| 10/08/1997 | CN2264082Y Chalk |
| 08/27/1997 | CN2260717Y Lead core capable of drawing three-fixed-width line and propelling pencil thereof |
| 08/13/1997 | CN2259288Y Sheathing capable of holding pencil |
| 07/24/1997 | DE19601585A1 Painting material used to form coloured layer on e.g. concrete |
| 07/08/1997 | US5645117 Tompkins turner |
| 06/18/1997 | CN2256376Y Special pencil core for drawing machine reading card |
| 06/04/1997 | CN2255359Y Multi-section jointed wooden pencil |
| 03/12/1997 | CN1034209C Material of paper pencil and method for making pencil |
| 03/05/1997 | CN2248642Y Convenienct pencil |
| 02/05/1997 | CN2246582Y Non-sharpenging pencil by ripping conical helical strip |
| 01/21/1997 | US5595700 Non-baked color pencil leads and method for preparing same |
| 01/21/1997 | US5595589 Baked color pencil lead and method of manufacturing the same |
| 01/08/1997 | CN2244483Y Pencil without sharpening |
| 01/07/1997 | US5591787 Synthetic polymer particles and fluorescent dye mixed in matrix; brightness |
| 01/02/1997 | EP0751193A2 Aqueous composition for writing, drawing or painting |
| 12/11/1996 | CN2242181Y Sheathing for pencil head |
| 11/20/1996 | CN2240440Y Triangle cross section pencil core |
| 10/10/1996 | DE19611985A1 Prodn. of strong calcined coloured pencil leads giving light-fast marks |
| 09/04/1996 | CN2234358Y Paper roll pencil end trimming cutter |
| 08/28/1996 | CN1129643A Paper-plastic composite pencil shaft and manufacture thereof |
| 08/27/1996 | US5549779 Process for the production of a pencil |
| 07/31/1996 | EP0723880A1 A method of making cosmetic pencils, and a cosmetic pencil obtained by same |
| 07/09/1996 | US5534206 Method for preparing baked pencil leads using concentric straightening plates |
| 07/03/1996 | CN2230233Y Pencil core |
| 07/02/1996 | US5531947 Process and installation for the manufacture of pencils |
| 06/25/1996 | US5529615 Marking material and method for suspending pigment particles |
| 06/19/1996 | CN2229354Y Pencil |
| 05/29/1996 | EP0613414B1 Process and plant for producing pencils |
| 05/15/1996 | CN2227028Y Pencil with paper shaft |
| 04/24/1996 | CN1121058A Marking implements with a marking core and a hydraulically settable sheath and their methods of manufacture |
| 04/24/1996 | CN1121003A Coating method of fragmental material layer on the surface of tubes |