Average Co-Inventor Count = 1.25
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. Sharp Kabushiki Kaisha Corporation (5 from 25,537 patents)
5 patents:
1. D1079797 - Electronic calculator with a printer
2. D519096 - Portable telephone
3. D379366 - Cash register
4. D372043 - Cash register
5. D349287 - Combined digital audio disc player, radio tuner and tape recorder