Inventor
HONG JIN RI
KR24 patents
⚠️ This page may combine multiple inventors who share the name “HONG JIN RI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM & HAAS ELECT MATERIALS KOREA LTD
23 patentsUS9997723B2Jun 12, 2018
Organic electroluminescent compound and an organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD6 citations83
US10886474B2Jan 5, 2021
Organic electroluminescent compound, and organic electroluminescent material and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD3 citations72
US9997724B2Jun 12, 2018
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD4 citations72
US9859507B2Jan 2, 2018
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD2 citations72
US10186669B2Jan 22, 2019
Organic electroluminescent compound and an organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD3 citations70
US11653562B2May 16, 2023
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations60
US12507588B2Dec 23, 2025
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations59
US12509472B2Dec 30, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12391651B2Aug 19, 2025
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12378228B2Aug 5, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12310235B2May 20, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12209093B2Jan 28, 2025
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12004420B2Jun 4, 2024
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US11844269B2Dec 12, 2023
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US11450814B2Sep 20, 2022
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US10069086B2Sep 4, 2018
Plurality of host materials and an organic electroluminescence device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations51
US12520718B2Jan 6, 2026
Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations50
US12453282B2Oct 21, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations50
US12258352B2Mar 25, 2025
Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations50
US11793075B2Oct 17, 2023
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations50
US12262633B2Mar 25, 2025
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations49
US10749119B2Aug 18, 2020
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations41
US10490752B2Nov 26, 2019
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations41