Inventor
Joo-Dong Lee
Inventor
Seongnam, KR
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds17%
C09KMaterials for miscellaneous applications, not provided for elsewhere17%
H01LSemiconductor devices17%
H10KOrganic electric solid-state devices17%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%
C07CAcyclic or carbocyclic compounds3%
A61KPreparations for medical, dental or toiletry purposes2%
A61QSpecific use of cosmetics or similar toiletry preparations2%
B21BRolling of metal2%
B23KSoldering or unsoldering2%
PatentTitleYear
10,672,993Nitrogen-containing polycyclic compound and organic light emitting element using same202010,644,244Heterocyclic compound and organic light emitting device using same202010,454,043Heterocyclic compound and organic light-emitting element using same201910,446,765Heterocyclic compound and organic light emitting element using same201910,381,577Hetero-cyclic compound and organic light emitting device using the same201910,344,030Heterocyclic compound and organic light emitting device using same201910,177,319Nitrogen-containing polycyclic compound and organic light emitting element using same201910,026,908Hetero-cyclic compound and organic light emitting device using the same20189,899,600'Multicyclic aromatic compound and organic light emitting device using the same'20189,728,731'Heterocyclic compound and organic light emitting device using same'20179,333,594'Lead-free solder composition for glass'20167,406,850'Hot rolled strip cooling device with coolant header'20087,173,062'Method for the improvement of skin wrinkles using retinyl retinoate'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007Patents assigned to ENPRANI CO LTD (1)· patent assignee history
2007Based in Kyungki-do, KR· patent location history
2008Based in Gwangyang-si, KR· patent location history
2016–2019Patents assigned to HEESUNG MAT LTD (9)· patent assignee history
2016Patents assigned to HYUNDAI MOTOR CO LTD (1)· patent assignee history
2016Patents assigned to KIA MOTORS CORP (1)· patent assignee history
2016Based in Gyeonggi-do, KR· patent location history
2017–2020Based in Seongnam, KR· patent location history
2019Based in Seongnam-si, KR· patent location history
2020Patents assigned to LT MATERIALS CO LTD (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEESUNG MAT LTD | 9 | 2016–2019 |
| LT MATERIALS CO LTD | 2 | 2020 |
| ENPRANI CO LTD | 1 | 2007 |
| HYUNDAI MOTOR CO LTD | 1 | 2016 |
| KIA MOTORS CORP | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seongnam, KR | 9 | 2017–2020 |
| Seongnam-si, KR | 1 | 2019 |
| Gyeonggi-do, KR | 1 | 2016 |
| Gwangyang-si, KR | 1 | 2008 |
| Kyungki-do, KR | 1 | 2007 |