Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7394363 | Intelligent multi purpose early warning system for shipping containers, components therefor and methods of making the same | — | 2008-07-01 |
| 7158028 | Intelligent multi purpose early warning system for shipping containers, components therefor and methods of making the same | — | 2007-01-02 |
| 6876308 | Intelligent system for detecting multiple hazards and field marker therefor | — | 2005-04-05 |
| 6664898 | Multiple hazard field marker and components therefor | — | 2003-12-16 |
| 6517204 | Electronic depth perception testing system and apparatus for conducting depth perception tests | — | 2003-02-11 |
| 6480115 | Multiple hazard field marker and components therefor | — | 2002-11-12 |
| 6341866 | Computer system for performing eye depth perception tests | — | 2002-01-29 |
| 6259373 | Multiple hazard marker system, components therefor and methods of making the same | — | 2001-07-10 |
| 6139152 | Electronic depth perception testing system and apparatus for conducting depth perception tests | — | 2000-10-31 |
| 5808908 | Method for measuring the usability of a system | — | 1998-09-15 |
| 5724262 | Method for measuring the usability of a system and for task analysis and re-engineering | — | 1998-03-03 |
| 4260226 | Eye depth perception testing apparatus | — | 1981-04-07 |