Average Co-Inventor Count = 5.00
ph-index = 1
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. Nortel Networks Corporation (1 from 4,171 patents)
2. Bell Canada (1 from 32 patents)
3. Stentor Resource Centre Inc. (1 from 17 patents)
1 patent:
1. 5966433 - Method and apparatus for screening calls in telephone networks