Average Co-Inventor Count = 4.00
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 (2 from 33,436 patents)
2 patents:
1. 7187459 - Printing system in which programs required for printer operation are downloaded from computer
2. 6633292 - Recording device and recording method