Average Co-Inventor Count = 1.67
ph-index = 3
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 (5 from 33,490 patents)
5 patents:
1. 8757747 - Image forming apparatus
2. 8282187 - Liquid discharging apparatus
3. 8152263 - Printer
4. 8147021 - Printer
5. 7607748 - Printer