Average Co-Inventor Count = 2.50
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 (5 from 33,490 patents)
5 patents:
1. D382583 - Ink jet printer
2. 5387043 - Compact printer
3. D354981 - Printer for an electronic computer
4. D321902 - Automatic paper feeder for printer
5. D321714 - Printer for electronic computer