Average Co-Inventor Count = 2.00
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. Vistron Corporation (2 from 4 patents)
2 patents:
1. 3996330 - Method of making a molded brush back
2. 3936261 - Apparatus for manufacturing brushes