Average Co-Inventor Count = 2.25
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. Sharp Corporation (3 from 847 patents)
3 patents:
1. D334736 - Data input and output terminal
2. D322088 - Calculator
3. D299874 - Hair drier