Average Co-Inventor Count = 2.82
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 33,490 patents)
4 patents:
1. 12225166 - Printing device
2. D1029095 - Printer
3. 10728410 - Reading device
4. D867366 - Scanner