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 (2 from 33,404 patents)
2 patents:
1. 11991326 - Image reading device with document pressing section
2. 11943413 - Image reading device