Average Co-Inventor Count = 3.00
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. Amtelco (2 from 2 patents)
2 patents:
1. 4737980 - Computer data entry method and apparatus
2. 4674116 - Telephone line concentrator without switching matrix