Average Co-Inventor Count = 2.00
ph-index = 4
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 (3 from 35,756 patents)
2. Nec Home Electronics, Inc. (1 from 78 patents)
4 patents:
1. D333651 - Battery charger for a facsimile transmitter and receiver
2. D331753 - Facsimile transmitter and receiver
3. D300320 - Telephone attendant console
4. D287720 - Printer