John Feng
5Patents
2h-index
7Co-inventors
44Inventor score
Filing activity: Dec 15, 2003 → Sep 28, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7454143B1 | Reconfigurable thin film based DWDM devices for reconfigurable add-drop optical systems | Electricity | 3 | Expired |
| US7171073B1 | Structure and method for multi-ports optical apparatus | Physics | 2 | Expired |
| US7457544B1 | Single channel four-port group delay compensation equalizer | Electricity | 0 | Expired |
| US7340130B1 | Method for assembly of multi-ports optical apparatus | Physics | 0 | Expired |
| US12145337B2 | Method for tinting or decoloring a lens, lens obtainable by the method for tinting or decoloring a lens, lens comprising a tint or decolorization, lens holder and tinting device for tinting a lens | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.