PowerGate Optical Inc.
11Patents
10Active
11Granted
46Portfolio score
Filing activity: Aug 5, 2005 → Mar 20, 2020 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8040621B2 | Miniature magnetic-levitated lens driving device | Physics | 33 | Active |
| US7158316B2 | Suspension apparatus for auto-focus lens device and a method for fabricating the same | Physics | 20 | Expired |
| US7391579B2 | Minature zoom lens | Physics | 8 | Active |
| US10827104B2 | Multi-lens camera module | Electricity | 3 | Active |
| US7417812B2 | Microminiature lens module and lens device having the same | Physics | 3 | Active |
| US7990463B2 | Multi-stage lens driving device | Physics | 2 | Active |
| US7505219B2 | Multi-stage lens driving device | Physics | 2 | Active |
| US10638043B2 | Image capturing module having multiple lenses | Electricity | 1 | Active |
| US7574125B2 | Two-stage lens driving device | Physics | 1 | Active |
| US10725266B2 | Moving-coil closed-loop auto-focusing camera module with low magnetic interference | Physics | 1 | Active |
| US10965870B2 | Image capturing module having multiple lenses | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.