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WITHEI MATERIALS CO LTD

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    190,533
About

WITHEI MATERIALS CO LTD has a total of 22 patent applications. Its first patent ever was published in 2009. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets semiconductors, organic fine chemistry and basic materials chemistry are NOVALED AG, CS ELSOLAR CO LTD and NAKANO YUKI.

Patent filings in countries

World map showing WITHEI MATERIALS CO LTDs patent filings in countries
# Country Total Patents
#1 Republic of Korea 22

Patent filings per year

Chart showing WITHEI MATERIALS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shin Seon Ho 22
#2 Shim Na Young 19
#3 Lee Tae Geum 2
#4 Kim Hyung Il 2
#5 Kim Jae Hoon 1
#6 Jang Yeo Ul 1
#7 Jang So Hyun 1
#8 Park Seong Woo 1
#9 Kim Hwang Min 1

Latest patents

Publication Filing date Title
KR20160031468A Method of preparing amine compound
KR20160095667A Pentaphenylbenzene derivative compound and organic electroluminescent device using the same
KR20160072868A Iridium complex compounds and organic electroluminescent device using the same
KR20160057018A Amine compound and organic electroluminescent device using the same
KR20160049083A Quinoxaline derivative compound and organic electroluminescent device using the same
KR20150138473A Isoquinoline derivative compound and organic electroluminescent device using the same
KR101329047B1 Amine derivative as hole transporting material and organic electroluminescent device using the same
KR20140021809A Aromatic compound derivatives and organic electroluminescent device using the same
KR20130121597A Using triphenylamine as hole transporting mateial and organic electroluminescent device using the same
KR20130121516A Using new alylamine as hole transporting mateial and organic electroluminescent device using the same
KR20130120855A Using thiophen derivative as hole transporting mateial and organic electroluminescent device using the same
KR20130086748A The organic electro luminescent device using the amine-based dendrimer-type compound
KR20130086757A Amine derivative as hole transporting mateial and organic electroluminescent device using the same
KR20130086733A Imidazole derivative and organic electroluminescent device using the same
KR20130086416A New fluorene derivatives and organic electronic devicesusing the same
KR20130084825A Asymmetric aryl amine structure of the blue light-emitting material containing meta-substituted phenyl and organic electroluminescent device using the its derivatives
KR20130051321A Novel tetiary aryl amine and organic electroluminescent device using the same
KR20130010594A Pyrene derivative and organic electroluminescent device using the pyrene derivatives
KR20120043878A Organic compounds for organic electroluminescentdevice and organic electroluminescent device using same
KR20100115059A Method for organic electroluminescent sheet for keypad backlight