Average Co-Inventor Count = 3.46
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. Porta Systems Corporation (2 from 141 patents)
2. Innovating Training Products, Inc. (1 from 1 patent)
3 patents:
1. 4702475 - Sports technique and reaction training system
2. 4334129 - Telephone digital office cutover system
3. 3969594 - Automated telephony testing and polling apparatus and system