Average Co-Inventor Count = 4.13
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. Sharp Kabushiki Kaisha Corporation (3 from 25,537 patents)
3 patents:
1. 5467458 - Optical character reader with internal memory and data processor
2. 4727502 - Programmable electronic calculator
3. 4658270 - Recording apparatus