Average Co-Inventor Count = 2.00
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Immersion Corporation (3 from 1,148 patents)
2. Virtual Technologies, Inc. (2 from 16 patents)
5 patents:
1. 9690379 - Tactile feedback interface device
2. 7755602 - Tactile feedback man-machine interface device
3. 6424333 - Tactile feedback man-machine interface device
4. 6275213 - Tactile feedback man-machine interface device
5. 6088017 - Tactile feedback man-machine interface device