Average Co-Inventor Count = 2.00
ph-index = 3
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. Sony Corporation (3 from 58,129 patents)
3 patents:
1. 6278739 - Digital data transmission apparatus
2. 6002455 - Digital data transfer apparatus using packets with start and end
3. 5923384 - Data transmission system capable of routing and transmitting digital