Average Co-Inventor Count = 1.00
ph-index = 2
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. B.p.t. S.p.a. (3 from 21 patents)
3 patents:
1. D786820 - Entryphone
2. D752540 - Entryphone
3. D746251 - Video entryphone