Average Co-Inventor Count = 7.00
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 33,418 patents)
2 patents:
1. 5669725 - Impact dot printer with noise suppression
2. 5540511 - Impact dot printer with noise suppression