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. Polysar Limited (2 from 139 patents)
2 patents:
1. 4990456 - Analysis of asphalt
2. 4837252 - Polymer-asphalt mixing process