Average Co-Inventor Count = 3.43
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. Porta Systems Corporation (2 from 141 patents)
2 patents:
1. 4730229 - Male base subscriber circuit protector module
2. 4649456 - Three element gas tube protector module