Average Co-Inventor Count = 1.64
ph-index = 1
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. Seiko Epson Corporation (3 from 33,404 patents)
3 patents:
1. 11143877 - Head-mounted image display device and face mask unit
2. 10802277 - Head-mounted display device
3. D792359 - Controller