Average Co-Inventor Count = 2.40
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. 12085725 - Head-mounted display apparatus
2. 12002188 - Optical module and virtual image display device
3. 11657482 - Optical module and virtual image display device