LS Tech Co., Ltd.
13Patents
7Active
13Granted
41Portfolio score
Filing activity: Jun 14, 1996 → Jul 12, 2010 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5732743A | Method of sealing pipes | Performing Operations; Transporting | 56 | Expired |
| US7736042B2 | Back light unit | Emerging Cross-Sectional Technologies | 42 | Active |
| US7364339B2 | Flexible backlight unit for key of input device | Electricity | 21 | Active |
| US7364337B2 | Flexible backlight unit for key of input device | Electricity | 14 | Active |
| US6960891B2 | Direct-type back light device | Physics | 8 | Expired |
| US7042167B2 | Back light device for liquid crystal displays | Electricity | 3 | Expired |
| US6843587B2 | Surface light source apparatus, and method and apparatus for manufacturing the same | Physics | 3 | Expired |
| US7471037B2 | Flat fluorescent lamp with discharge uniformity | Electricity | 2 | Active |
| US7215079B2 | Flat fluorescent lamp requiring low discharge initiating voltage and backlight unit having uniform brightness | Electricity | 2 | Expired |
| US7259518B2 | Flat fluorescent lamp with improved discharge efficiency | Electricity | 1 | Expired |
| US8247736B2 | Apparatus for forming pattern on light guide panel | Physics | 0 | Active |
| US8592718B2 | Apparatus for forming pattern using laser | Physics | 0 | Active |
| US8278596B2 | Apparatus for forming pattern using laser | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.