Transitions Research Corporation
14Patents
0Active
14Granted
37Portfolio score
Filing activity: Mar 1, 1988 → Jun 20, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5040116A | Visual navigation and obstacle avoidance structured light system | Physics | 370 | Expired |
| US5051906A | Mobile robot navigation employing retroreflective ceiling features | Physics | 364 | Expired |
| US4954962A | Visual navigation and obstacle avoidance structured light system | Physics | 328 | Expired |
| US4962453A | Autonomous vehicle for working on a surface and method of controlling same | Emerging Cross-Sectional Technologies | 310 | Expired |
| US5103306A | Digital image compression employing a resolution gradient | Physics | 278 | Expired |
| US4933864A | Mobile robot navigation employing ceiling light fixtures | Physics | 246 | Expired |
| US4905151A | One dimensional image visual system for a moving vehicle | Physics | 160 | Expired |
| US4967862A | Tether-guided vehicle and method of controlling same | Human Necessities | 144 | Expired |
| US5063604A | Method and means for recognizing patterns represented in logarithmic polar coordinates | Physics | 83 | Expired |
| US4951985A | Bumper for impact detection | Performing Operations; Transporting | 53 | Expired |
| US4979136A | Processing system and method for enhancing image data | Physics | 34 | Expired |
| US4968878A | Dual bumper-light curtain obstacle detection sensor | Physics | 23 | Expired |
| US4958068A | Dual bumper-light curtain obstacle detection sensor | Physics | 20 | Expired |
| US4932489A | Steering and drive means for robot vehicle | Performing Operations; Transporting | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.