Average Co-Inventor Count = 2.67
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. Nitsuko Corporation (4 from 86 patents)
4 patents:
1. 4656660 - Office line holding circuit with an automatic release function for
2. D287487 - Cordless telephone
3. D286530 - Telephone set
4. D286284 - Telephone set