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DONG A PENCIL CO LTD

Overview
  • Total Patents
    89
  • GoodIP Patent Rank
    120,980
  • Filing trend
    ⇩ 62.0%
About

DONG A PENCIL CO LTD has a total of 89 patent applications. It decreased the IP activity by 62.0%. Its first patent ever was published in 1998. It filed its patents most often in Republic of Korea, United States and Japan. Its main competitors in its focus markets consumer goods, basic materials chemistry and macromolecular chemistry and polymers are PILOT CORPORATION KK, ZEBRA PEN CORP and KK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION.

Patent filings in countries

World map showing DONG A PENCIL CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 52
#2 United States 13
#3 Japan 10
#4 EPO (European Patent Office) 7
#5 China 4
#6 Germany 3

Patent filings per year

Chart showing DONG A PENCIL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kim Hak Jae 17
#2 Kim Je Won 12
#3 Ahn Jung Geol 10
#4 An Jung Gul 8
#5 Jung Han Sin 7
#6 Kim Hak-Jae 6
#7 Kim Hakjae 5
#8 Kim Hak-Jai 5
#9 Kim Chung Gyeong 4
#10 An Jung-Gul 4

Latest patents

Publication Filing date Title
KR20190128324A Knock type pen
US2019160854A1 Knock type pen
US2019160852A1 Knock type pen
KR20190060340A Knock type pen
KR20190060339A Knock type pen
US2017274700A1 Thermochromic writing instrument
EP3109286A1 Thermochromic micro particles and thermochromic ink composition, writing apparatus and smart window using the same
EP3109293A1 Thermochromic micro particles and thermochromic ink composition, writing apparatus and smart window using the same
KR20110036030A Free ink type writing instrument
KR20110027062A Tip for ball point pen
KR20110027063A Tool reduction of pipe for niddle type ball pen tip
KR20100058729A Knock and pressing type writing instrument
EP2085247A2 Tip for writing instrument
KR20100024067A Free ink type ballpoint pen refill
KR20090084031A Non-calcined marrow of pencil composite and process using the same
KR20090052982A Free ink type writing instrument
KR20090047033A Fixing structure of clip for writing instrument
KR20080076191A Tip for writing instrument
DE102006034587A1 Writing implement i.e. ball-point pen, tip, has elastic component applying force to ball, and central guiding section provided with two layers and projecting at inner circumferential surface of ink flow path on side of ball seating section
KR20050016801A Multiple Uses Ball Point Pen