Average Co-Inventor Count = 2.25
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. Nec Corporation (2 from 35,756 patents)
2. Other (1 from 832,912 patents)
3. Taiyo Yuden Kabushiki Kaisha (1 from 24 patents)
3 patents:
1. 5305310 - Packet switching system having arbitrative function for competing packets
2. 5046064 - Packet switching system
3. 4649857 - Thin-film forming device