Average Co-Inventor Count = 10.00
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. Line Corporation (1 from 186 patents)
1 patent:
1. 10523812 - Method and system for providing ringback tone service and ringtone service in Voice over Internet Protocol (VoIP) call service