Average Co-Inventor Count = 3.00
ph-index = 4
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 33,527 patents)
4 patents:
1. D400918 - Ink jet color printer
2. D390258 - Ink jet printer
3. D378378 - Computer printer
4. D378246 - Keeping box for head unit of printer