Average Co-Inventor Count = 4.00
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. Trillium Telephone Systems Inc. (2 from 13 patents)
2 patents:
1. D298532 - Base for a telephone subscriber set
2. D293442 - Telephone handset