Average Co-Inventor Count = 1.20
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 Kabushiki Kaisha Corporation (3 from 25,577 patents)
3 patents:
1. 6154290 - Communication apparatus and facsimile apparatus
2. 5159624 - Communication system for transmitting to a portable receiver data
3. 4611591 - Expiration valve control for automatic respirator