Wenfa Qi
4Patents
2h-index
9Co-inventors
33Inventor score
Filing activity: Apr 29, 2006 → Dec 27, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8107129B2 | Methods and apparatus for embedding and detecting digital watermarks in a text document | Electricity | 6 | Active |
| US8120795B2 | Method of document protection | Physics | 3 | Active |
| US8976383B2 | Method and system for document printing management and control, and document source tracking | Electricity | 1 | Active |
| US9111341B2 | Watermarking image block division method and device for western language watermarking processing | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.