Average Co-Inventor Count = 2.77
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 33,490 patents)
3 patents:
1. 12485685 - Printing device
2. 11727908 - Recording device
3. 10723148 - Recording apparatus