Charles C. Cheng
13Patents
11h-index
12Co-inventors
69Inventor score
Filing activity: Oct 19, 1978 → May 23, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6377535B1 | High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systems | Physics | 185 | Expired |
| US6185051A | High numerical aperture optical focusing device for use in data storage systems | Physics | 179 | Expired |
| US6130779A | Near field magneto-optical head made using wafer processing techniques | Physics | 167 | Expired |
| US6229782A | High numerical aperture optical focusing device for use in data storage systems | Physics | 165 | Expired |
| US6094803A | Wafer processing techniques for near field magneto-optical head | Emerging Cross-Sectional Technologies | 156 | Expired |
| US6212153A | High NA solid catadioptric focusing device having a flat kinoform phase profile | Physics | 153 | Expired |
| US6806813B1 | Method for location-based asset management | Physics | 113 | Expired |
| US5986978A | Read/write head and method for magnetic reading and magneto-optical writing on a data storage medium | Physics | 64 | Expired |
| US4224509A | Holographic scanning system | Physics | 31 | Expired |
| US7579960B2 | Method for location-based asset management | Physics | 18 | Expired |
| US5986995A | High NA catadioptric focusing device having flat diffractive surfaces | Physics | 13 | Expired |
| US9536007B2 | Method for location-based asset management | Physics | 0 | Active |
| US12046374B2 | Digital twin | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.