Average Co-Inventor Count = 3.00
ph-index = 2
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. Virtual Research Systems (2 from 3 patents)
2 patents:
1. D374002 - Virtual reality visual display helmet
2. 5321416 - Head-mounted visual display apparatus