Average Co-Inventor Count = 3.60
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. Fujitsu Corporation (3 from 39,237 patents)
3 patents:
1. 7639676 - SIP server
2. 6337905 - System for controlling automatic call distribution service
3. 5854825 - Method of controlling silent monitoring of a group