Topic leaderboard
Articles & accessories for writing or drawing
Ranked by the PatentIndex Score — a 1–99 percentile within B43L · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest B43L patents became public in the last 2 years — the current frontier
- 199Brendan Michael Walsh6 patents · 35 citations
- 296Timothy T. Mckenzie6 patents · 35 citations
- 392Jacob Epstein10 patents · 43 citations
- 488Joseph Lemay10 patents · 43 citations
- 583Sadao Yamamoto5 patents · 21 citations
- 679Kelly Taylor6 patents · 7 citations
- 775Hideyuki Hara3 patents · 6 citations
- 871Masayuki Miyamoto3 patents · 6 citations
- 967Diane K. O'Rourke4 patents · 2 citations
- 1063Roberta Mix2 patents · 2 citations
- 1158Michael Moskal3 patents · 1 citations
- 1254Hui Zhan1 patents · 3 citations
- 1350Xiongbin Jin1 patents · 3 citations
- 1446Naoki Nomura1 patents · 2 citations
- 1542Abigail E. Meyer2 patents · 0 citations
- 1638Margaret Katherine Brogan2 patents · 0 citations
- 1733Alexis Anne Chan1 patents · 1 citations
- 1829Graeme Victor Todd1 patents · 1 citations
- 1925Hao Chen1 patents · 1 citations
- 2021Isabelle Mokotoff1 patents · 1 citations
- 2117Mingbin Gong1 patents · 1 citations
- 2213Qi Qiu1 patents · 1 citations
- 238Qinmin Yang1 patents · 1 citations
- 244Raul Rodriguez1 patents · 1 citations
- 251Etienne Michenaud3 patents · 0 citations
Active· last 5 yrs
Sustained B43L output across the last 5 years
- 199Fritz Lüttgens16 patents · 160 citations
- 296Brendan Michael Walsh6 patents · 35 citations
- 392Timothy T. Mckenzie6 patents · 35 citations
- 488Jacob Epstein10 patents · 43 citations
- 583Joseph Lemay10 patents · 43 citations
- 679Mark Lloyd Hagan7 patents · 37 citations
- 775Sadao Yamamoto5 patents · 21 citations
- 871Anthony Franco9 patents · 20 citations
- 967Dony Dawson5 patents · 18 citations
- 1063Daniel Wayne Mcgee3 patents · 15 citations
- 1158Kelly Taylor6 patents · 7 citations
- 1254John Kraljic2 patents · 16 citations
- 1350Hideyuki Hara3 patents · 6 citations
- 1446Masayuki Miyamoto3 patents · 6 citations
- 1542Daniel J. Raymond4 patents · 7 citations
- 1638Daniel Patrick Banasik3 patents · 6 citations
- 1733Steve Donald Krohmer3 patents · 6 citations
- 1829Naiyong Jing3 patents · 16 citations
- 1925Craig Skinner4 patents · 4 citations
- 2021Laurent Beaucher4 patents · 4 citations
- 2117Ritsuo Koga5 patents · 3 citations
- 2213Daisuke Abe3 patents · 6 citations
- 238Hetal B. Kurani2 patents · 6 citations
- 244Hemal B. Kurani2 patents · 6 citations
- 251Jeffrey R. Weilert2 patents · 9 citations
All-time canon
Career PatentIndex Score in B43L
- 199Bradley C. Davis8 patents · 308 citations
- 296Michael K. Boone8 patents · 308 citations
- 392Yasuzo Murata5 patents · 438 citations
- 488Randal Schafer5 patents · 218 citations
- 583Shigeru Tamai9 patents · 211 citations
- 679Kouhei Koyama9 patents · 203 citations
- 775Stephen B. Murphy7 patents · 126 citations
- 871Clarence R. Tate5 patents · 164 citations
- 967Masatoshi Shintani7 patents · 133 citations
- 1063Kia Silverbrook7 patents · 60 citations
- 1158Paul Lapstun7 patents · 60 citations
- 1254Zhenya Alexander Yourlo7 patents · 60 citations
- 1350Fritz Lüttgens16 patents · 160 citations
- 1446Heinz J. Gerber7 patents · 109 citations
- 1542Christopher R. Carlson5 patents · 74 citations
- 1638Isidre Rosello Martos4 patents · 141 citations
- 1733Robert W. Beauchamp4 patents · 141 citations
- 1829David J. Logan4 patents · 197 citations
- 1925George Spector7 patents · 99 citations
- 2021Shih-Ho Chang4 patents · 122 citations
- 2117Hidehei Kageyama10 patents · 80 citations
- 2213Gerold Anderka7 patents · 73 citations
- 238Michael D. Morrissey7 patents · 51 citations
- 244Steven Beno4 patents · 120 citations
- 251Brendan Michael Walsh6 patents · 35 citations
Rising· last 2 yrs
The top-scoring B43L patents made public in the last 2 years
- 199US12350955B1✦ AIStair tread template ruler3 cites · 202580% earned
- 296USD1026684S✦ AISpeed square with extension3 cites · 202459% earned
- 392US12208641B1✦ AIHandwriting tool and method of use1 cites · 202567% earned
- 488US12154305B2Information processing apparatus and information processing method2 cites · 202476% earned
- 583US11951765B1Blackboard eraser cleaner1 cites · 202467% earned
- 679US12122180B2Writing system having magnetic writing tool and magnetic support surface therefor1 cites · 202467% earned
- 775US12246894B1Container having lid with outwardly facing display panel1 cites · 202567% earned
- 871US12366931B2Sensor controller0 cites · 20240% earned
- 967US12344026B2Moisture-erasable note taking system0 cites · 20240% earned
- 1063US12240265B1Erasable writable substrates and methods of manufacture0 cites · 20250% earned
- 1158US12380531B2Writing surface boundary markers for computer vision0 cites · 20240% earned
- 1254US11951764B1Dry erase marker board system with solid wetting marker board0 cites · 20240% earned
- 1350US12122930B2Color-change and erasable writing compositions, writing instruments, and systems0 cites · 20240% earned
- 1446US11965276B1Custom piece-together quilt template0 cites · 20240% earned
- 1542USD1103274SInteractive phonics board set0 cites · 20250% earned
- 1638US12070968B2Writing instruments0 cites · 20240% earned
- 1733US12454397B1Tattoo implement blister package0 cites · 20250% earned
- 1829US12540807B2Combination square and method of adjusting the same0 cites · 20240% earned
- 1925US12530092B2Magnetic sheet, magnetic writing system, drawing method, and erasing method0 cites · 20240% earned
- 2021US12403719B2Efficient ink erasure system0 cites · 20240% earned
- 2117US12204221B1High-brightness liquid crystal handwriting device0 cites · 20250% earned
- 2213US12157331B1Notebooks with removable components0 cites · 20240% earned
- 238US12103330B2Sharpeners for writing instruments0 cites · 20240% earned
- 244US12179510B2Friction body unit and thermochromic writing instrument0 cites · 20240% earned
- 251US12576665B2Vessel for use in multiple positions and methods of use0 cites · 20250% earned
Active· last 5 yrs
The top-scoring B43L patents of the last 5 years
- 199US12350955B1✦ AIStair tread template ruler3 cites · 202580% earned
- 296US11780260B1✦ AICarpenter tools9 cites · 202374% earned
- 392US10978077B1✦ AIKnowledge point mark generation system and method thereof15 cites · 202189% earned
- 488US11858291B2Carpenter square7 cites · 202386% earned
- 583US11089873B1Free-standing board with retractable wheels8 cites · 202186% earned
- 679US11103068B1Modular wall organization system and accessories therefor8 cites · 202186% earned
- 775US11325413B2Speed square with extension6 cites · 202267% earned
- 871US11273550B2Tool for assisting the process of marking or cutting7 cites · 202186% earned
- 967US11262635B1Magnet erased eWriter5 cites · 202284% earned
- 1063US11161365B1Slotted ruler6 cites · 202185% earned
- 1158US11168969B1Adjustable square5 cites · 202184% earned
- 1254US11668552B1Multi-function square gauges and methods of use5 cites · 202384% earned
- 1350US11571924B2Positioning jig4 cites · 202182% earned
- 1446US11084318B2Multifunctional writing device for automatic exam proctoring and grading4 cites · 202182% earned
- 1542US11529010B1Convertible metal backings and related methods3 cites · 202272% earned
- 1638US11040568B1Convertible apparatus for sharpening marking instruments4 cites · 202182% earned
- 1733US11472223B1Script sign template apparatus and method3 cites · 202280% earned
- 1829US11320856B2Display systems and devices4 cites · 202182% earned
- 1925US11230138B2Floor tile scoring-cutting guide4 cites · 202182% earned
- 2021US11908101B2Writing surface boundary markers for computer vision2 cites · 202261% earned
- 2117US11661691B1Custom piece-together quilt template2 cites · 202367% earned
- 2213US11325519B1Securing assembly for securing a tower to a wind turbine tower3 cites · 202280% earned
- 238US11654545B2Dual speed square2 cites · 202276% earned
- 244US11738591B2Drawing assisting tool3 cites · 202280% earned
- 251US12208641B1Handwriting tool and method of use1 cites · 202567% earned
All-time canon
The defining B43L patents of the whole record
- 199US4143472A✦ AIDisplaying magnetic panel and its display device221 cites · 197994% earned
- 296US5057363A✦ AIMagnetic display system196 cites · 199194% earned
- 392US5023408A✦ AIElectronic blackboard and accessories such as writing tools181 cites · 199190% earned
- 488US5503891AFlexible magnet attractant display mat177 cites · 199694% earned
- 583US5411398AMagnetic display system171 cites · 199594% earned
- 679US6726070B2Ergonomic input-device holder153 cites · 200394% earned
- 775US4751615APage light148 cites · 198894% earned
- 871US4153927AMulti-function clipboard apparatus145 cites · 197993% earned
- 967US3941488AMarker/anti-marker system140 cites · 197693% earned
- 1063US4996110AWhite board138 cites · 199193% earned
- 1158US4368952AMagnetic display panel using reversal magnetism138 cites · 198393% earned
- 1254US4976037AMarking and cutting device136 cites · 199093% earned
- 1350US4940350AFluid ball applicator with vent tube134 cites · 199093% earned
- 1446US4467525AAutomated sign generator127 cites · 198493% earned
- 1542US5537711AElectric board cleaner120 cites · 199693% earned
- 1638US4044464ACircular cutting device116 cites · 197793% earned
- 1733US6441807B1Display system114 cites · 200293% earned
- 1829US4931019AElectrostatic image display apparatus112 cites · 199093% earned
- 1925US5151032AMagnetophoretic display panel110 cites · 199293% earned
- 2021US5727325AMultipurpose square108 cites · 199893% earned
- 2117US4779346ATransparent measuring device with multicolored lines102 cites · 198893% earned
- 2213US4652239ASpace planning system and method102 cites · 198793% earned
- 238US4670751AEraser for electronic blackboard101 cites · 198793% earned
- 244US6839974B1Multi-function layout square with laser101 cites · 200593% earned
- 251US5894675ACombination tool97 cites · 199993% earned
Rising· last 2 yrs
Assignees whose newest B43L patents became public in the last 2 years — the current frontier
- 199WACOM CO LTD8 patents · 221 citations
- 296SANFORD LP12 patents · 80 citations
- 392APEX BRANDS INC6 patents · 35 citations
- 488ROCKET INNOVATIONS INC10 patents · 43 citations
- 583CRAYOLA LLC12 patents · 39 citations
- 679TAYLOR KELLY J6 patents · 7 citations
- 775SOCIéTé BIC17 patents · 8 citations
- 871ZERO LAB CO LTD6 patents · 3 citations
- 967PILOT CORPORATION KK5 patents · 2 citations
- 1063MIX ROBERTA2 patents · 2 citations
- 1158ZHEJIANG JUXIN TECH CO LTD1 patents · 3 citations
- 1254SONY GROUP CORP1 patents · 2 citations
- 1350ANTEMILAN LLC3 patents · 0 citations
- 1446RODRIGUEZ JR RAUL1 patents · 1 citations
- 1542STEADYSCRIB LLC1 patents · 1 citations
- 1638TODD GRAEME VICTOR1 patents · 1 citations
- 1733UNIV ZHEJIANG1 patents · 1 citations
- 1829UNIV KING FAISAL2 patents · 0 citations
- 1925ROCKING CHAIR READERS LLC1 patents · 0 citations
- 2021BOWIE RONALD1 patents · 0 citations
- 2117CROWN BALLPEN CO LTD1 patents · 0 citations
- 2213FRANKLIN TRAVIS1 patents · 0 citations
- 238KLEIN TOOLS INC1 patents · 0 citations
- 244Miller IP Law1 patents · 0 citations
- 251MODERNMAVENZ1 patents · 0 citations
Active· last 5 yrs
Sustained B43L output across the last 5 years
- 199WACOM CO LTD8 patents · 221 citations
- 2963M INNOVATIVE PROPERTIES CO6 patents · 106 citations
- 392SANFORD LP12 patents · 80 citations
- 488APEX BRANDS INC6 patents · 35 citations
- 583ROCKET INNOVATIONS INC10 patents · 43 citations
- 679COMSERO INC9 patents · 20 citations
- 775CRAYOLA LLC12 patents · 39 citations
- 871DAWSON DONY5 patents · 18 citations
- 967HAGAN MARK LLOYD5 patents · 25 citations
- 1063MCGEE DANIEL WAYNE3 patents · 15 citations
- 1158WOODPECKERS LLC3 patents · 22 citations
- 1254TAYLOR KELLY J6 patents · 7 citations
- 1350ROCKLER COMPANIES INC4 patents · 9 citations
- 1446CANON KK3 patents · 29 citations
- 1542SOCIéTé BIC17 patents · 8 citations
- 1638STEELCASE INC3 patents · 40 citations
- 1733BROTHER IND LTD4 patents · 10 citations
- 1829ZERO LAB CO LTD6 patents · 3 citations
- 1925KENT DISPLAYS INC2 patents · 8 citations
- 2021HULTAFORS GROUP AB3 patents · 4 citations
- 2117WISDOM GARDEN HONG KONG LTD1 patents · 15 citations
- 2213AVERTECH INC3 patents · 3 citations
- 238THIBODEAUX CHRISTINE2 patents · 3 citations
- 244RAYMOND DANIEL J3 patents · 3 citations
- 251PILOT CORPORATION KK5 patents · 2 citations
All-time canon
All-time PatentIndex Score in B43L
- 199PILOT PEN CO LTD6 patents · 485 citations
- 296BOONE INT INC8 patents · 308 citations
- 392HEWLETT PACKARD CO9 patents · 255 citations
- 488SEED RUBBER CO LTD8 patents · 238 citations
- 583TOMBOW PENCIL20 patents · 269 citations
- 679GILLETTE CO7 patents · 172 citations
- 775WACOM CO LTD8 patents · 221 citations
- 871PILOT KK7 patents · 200 citations
- 967MURPHY STEPHEN B7 patents · 126 citations
- 1063OKI ELECTRIC IND CO LTD5 patents · 171 citations
- 1158THALATTA INC5 patents · 164 citations
- 1254OHIO ART CO7 patents · 144 citations
- 1350GERBER GARMENT TECHNOLOGY INC8 patents · 126 citations
- 1446MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 patents · 139 citations
- 1542SILVERBROOK RES PTY LTD6 patents · 55 citations
- 16383M INNOVATIVE PROPERTIES CO6 patents · 106 citations
- 1733MUTOH IND LTD24 patents · 149 citations
- 1829KOTOBUKI & CO LTD13 patents · 118 citations
- 1925KUM LTD10 patents · 116 citations
- 2021KOH I NOOR RAPIDOGRAPH14 patents · 130 citations
- 2117CASIO COMPUTER CO LTD6 patents · 97 citations
- 2213SANFORD LP12 patents · 80 citations
- 238MITSUBISHI PENCIL CO17 patents · 112 citations
- 244FISKARS INC4 patents · 99 citations
- 251SANDERS ASSOCIATES INC6 patents · 65 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth