Chang-Soo Yu
7Patents
3h-index
17Co-inventors
46Inventor score
Filing activity: Sep 2, 1998 → Mar 28, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD422632S | Ink cartridge refill case | General | 16 | Expired |
| US8128211B2 | Ink-cartridge for printers | Performing Operations; Transporting | 5 | Active |
| US7997708B2 | Ink-cartridge for printers and ink refilling method | Performing Operations; Transporting | 3 | Active |
| US8162441B2 | Ink-cartridge loading/unloading apparatus | Performing Operations; Transporting | 1 | Active |
| US7686436B2 | Ink recharging system for ink cartridge, bulk ink cartridge used in said system, and ink recharging method using them | Performing Operations; Transporting | 1 | Active |
| US7661804B2 | Ink recharge system and ink recharge method for ink cartridge | Performing Operations; Transporting | 0 | Active |
| US8425021B2 | Ink cartridge for printer | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.