Barry J. Markwitz
7Patents
5h-index
17Co-inventors
60Inventor score
Filing activity: Oct 15, 1999 → May 31, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6834259B1 | Guard tour system | Physics | 52 | Expired |
| US7027955B2 | Guard tour system incorporating a positioning system | Physics | 47 | Expired |
| US7778802B2 | Wireless devices as guard tour checkpoint data collection and checkpoint data communication devices | Electricity | 15 | Expired |
| US7345577B2 | Displays for reporting guard tour data | Physics | 8 | Expired |
| US7363196B2 | Guard tour system | Physics | 7 | Active |
| US11105909B2 | Tracking system for persons and/or objects | Physics | 3 | Active |
| US9633541B2 | Display system for tracking large numbers of persons and/or objects | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.