Average Co-Inventor Count = 7.47
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. Seiko Epson Corporation (4 from 33,404 patents)
4 patents:
1. 6336758 - Printer
2. 5913626 - Printer having noise noise reduction structure
3. 5669725 - Impact dot printer with noise suppression
4. 5540511 - Impact dot printer with noise suppression