Average Co-Inventor Count = 2.67
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 (4 from 25,543 patents)
4 patents:
1. D857773 - Robot
2. D810818 - Copier
3. D663882 - Ceiling light
4. D640823 - Ceiling light