Virtual Technologies, Inc.
16Patents
0Active
16Granted
34Portfolio score
Filing activity: Nov 26, 1993 → May 5, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5592401A | Accurate, rapid, reliable position sensing using multiple sensing technologies | Human Necessities | 513 | Expired |
| US6148280A | Accurate, rapid, reliable position sensing using multiple sensing technologies | Human Necessities | 319 | Expired |
| US5930741A | Accurate, rapid, reliable position sensing using multiple sensing technologies | Human Necessities | 303 | Expired |
| US6088017A | Tactile feedback man-machine interface device | Physics | 260 | Expired |
| US6275213A | Tactile feedback man-machine interface device | Physics | 243 | Expired |
| US5631861A | Force feedback and texture simulating interface device | Physics | 208 | Expired |
| US6110130A | Exoskeleton device for directly measuring fingertip position and inferring finger joint angle | Human Necessities | 175 | Expired |
| US6428490B1 | Goniometer-based body-tracking device and method | Human Necessities | 160 | Expired |
| US6050962A | Goniometer-based body-tracking device and method | Human Necessities | 158 | Expired |
| US6042555A | Force-feedback interface device for the hand | Physics | 114 | Expired |
| US6059506A | Force feedback and texture simulating interface device | Physics | 90 | Expired |
| US6104379A | Forearm-supported exoskeleton hand-tracking device | Physics | 86 | Expired |
| US6413229B1 | Force-feedback interface device for the hand | Physics | 85 | Expired |
| US5676157A | Determination of kinematically constrained multi-articulated structures | Human Necessities | 66 | Expired |
| US6162190A | Determination of kinematically constrained multi-articulated structures | Human Necessities | 46 | Expired |
| US6497672B2 | Device and method for measuring the position of animate links | Human Necessities | 26 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.