Average Co-Inventor Count = 3.33
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. Nortel Networks Corporation (1 from 4,171 patents)
2. Northern Telecom Limited (1 from 2,276 patents)
2 patents:
1. 6205210 - Method for improved automatic message accounting in telephony
2. 5862334 - Mediated access to an intelligent network