Joo-Dong Lee
26Patents
4h-index
59Co-inventors
62Inventor score
Filing activity: Jan 15, 2002 → Dec 26, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9728731B2 | Heterocyclic compound and organic light emitting device using same | Electricity | 8 | Active |
| US7173062B2 | Method for the improvement of skin wrinkles using retinyl retinoate | Chemistry; Metallurgy | 5 | Expired |
| US10446765B2 | Heterocyclic compound and organic light emitting element using same | Electricity | 5 | Active |
| US10026908B2 | Hetero-cyclic compound and organic light emitting device using the same | Electricity | 4 | Active |
| US10381577B2 | Hetero-cyclic compound and organic light emitting device using the same | Electricity | 3 | Active |
| US10177319B2 | Nitrogen-containing polycyclic compound and organic light emitting element using same | Electricity | 2 | Active |
| US11515484B2 | Heterocyclic compound and organic light emitting element comprising same | Electricity | 2 | Active |
| US10644244B2 | Heterocyclic compound and organic light emitting device using same | Electricity | 1 | Active |
| US10344030B2 | Heterocyclic compound and organic light emitting device using same | Electricity | 1 | Active |
| US10913109B2 | Vertical semi-continuous casting equipment and vertical semi-continuous casting method | Performing Operations; Transporting | 0 | Active |
| US9333594B2 | Lead-free solder composition for glass | Performing Operations; Transporting | 0 | Active |
| US11665961B2 | Heterocyclic compound and organic light emitting device using same | Electricity | 0 | Active |
| US11141781B2 | Roller assembly, casting apparatus, and roller separating method for same | Performing Operations; Transporting | 0 | Active |
| US11427562B2 | Heterocyclic compound, and organic light-emitting device using same | Electricity | 0 | Active |
| US11434228B2 | Heterocyclic compound and organic light emitting device comprising same | Emerging Cross-Sectional Technologies | 0 | Active |
| US11891361B2 | Heterocyclic compound and organic light emitting device comprising same | Emerging Cross-Sectional Technologies | 0 | Active |
| US7406850B2 | Hot rolled strip cooling device with coolant header | Chemistry; Metallurgy | 0 | Active |
| US11563185B2 | Heterocyclic compound and organic light-emitting device comprising same | Emerging Cross-Sectional Technologies | 0 | Active |
| US10454043B2 | Heterocyclic compound and organic light-emitting element using same | Electricity | 0 | Active |
| US10930857B2 | Heterocyclic compound and organic light emitting device using same | Electricity | 0 | Active |
| US11248008B2 | Heterocyclic compound and organic light emitting element using same | Electricity | 0 | Active |
| US10672993B2 | Nitrogen-containing polycyclic compound and organic light emitting element using same | Electricity | 0 | Active |
| US9899600B2 | Multicyclic aromatic compound and organic light emitting device using the same | Chemistry; Metallurgy | 0 | Active |
| US11133477B2 | Heterocyclic compound and organic light emitting element using same | Electricity | 0 | Active |
| US11552255B2 | Heterocyclic compound and organic light-emitting element using same | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.