Average Co-Inventor Count = 2.48
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 (6 from 33,464 patents)
6 patents:
1. 7477430 - Transparency conveying apparatus and image reading apparatus
2. D541282 - Scanner
3. D454128 - Scanner
4. D451921 - Scanner
5. D421425 - Image input device
6. D420988 - Image input device