Average Co-Inventor Count = 3.00
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. Eltra Corporation (2 from 82 patents)
2. General Telephone Inc. (1 from 1 patent)
3 patents:
1. 4585904 - Programmable computerized telephone call cost metering device
2. 4345245 - Method and apparatus for arranging segmented character groups in a
3. 4231096 - Digital typesetter