Average Co-Inventor Count = 8.00
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. Talk-a-phone Co. (4 from 4 patents)
4 patents:
1. D834556 - Compact call station
2. D834555 - Compact call station
3. D817299 - Call station
4. D800087 - Compact call station