Robert Liu
11Patents
5h-index
21Co-inventors
66Inventor score
Filing activity: Feb 11, 2000 → Sep 29, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9348880B1 | Federated search of multiple sources with conflict resolution | Physics | 96 | Active |
| USD449858S | Tape dispenser | General | 20 | Expired |
| US6238119A | Photo-pen with the function of displaying a phone calling and illumination in dark | Performing Operations; Transporting | 14 | Expired |
| US10545982B1 | Federated search of multiple sources with conflict resolution | Physics | 13 | Active |
| US11341257B1 | Query indexing with permissions integration and federated search | Physics | 7 | Active |
| US6390641B1 | Flash type optic pen | Performing Operations; Transporting | 5 | Expired |
| US7213761B2 | Apparatus and process for two-stage decoding of high-density optical symbols | Physics | 3 | Expired |
| US11531682B2 | Federated search of multiple sources with conflict resolution | Physics | 2 | Active |
| US11921767B1 | Efficient access marking approach for efficient retrieval of document access data | Physics | 1 | Active |
| US12124472B2 | Federated search of multiple sources with conflict resolution | Physics | 0 | Active |
| US12314813B2 | Image modulation methods and devices using image filters, image parameters, quality scores, and grayscale clusters | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.