Robert Holt
14Patents
10h-index
9Co-inventors
61Inventor score
Filing activity: Dec 18, 1995 → Jan 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6752430B2 | Time dependent color-changing security indicator | Performing Operations; Transporting | 73 | Expired |
| US6452873B1 | Visually changing paper time indicator employing controllable barrier | Performing Operations; Transporting | 68 | Expired |
| US6446865B1 | Reflective badge security identification system | Physics | 55 | Expired |
| US6295252A | Fixating image in migrating dye indicator | Human Necessities | 42 | Expired |
| US5957458A | Substrate with hidden images and method of making such images appear | Human Necessities | 37 | Expired |
| US7139226B2 | Long term rapid color changing time indicator | Physics | 26 | Expired |
| US5707033A | Antenna mounting apparatus | Electricity | 20 | Expired |
| US6916130B1 | Method of printing, activating and issuing an activated time dependent label | Physics | 18 | Expired |
| US5995214A | Process for pose estimation of a camera viewing an image scene | Physics | 13 | Expired |
| US7215604B2 | Time indicator assembly | Physics | 13 | Expired |
| US7898907B1 | Inspection and testing indicator | Emerging Cross-Sectional Technologies | 7 | Active |
| US8056498B2 | Inspection and testing indicator | Emerging Cross-Sectional Technologies | 4 | Active |
| US8672362B1 | Single-piece tag | Emerging Cross-Sectional Technologies | 2 | Active |
| US6091394A | Technique for holographic representation of images | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.