Average Co-Inventor Count = 3.00
ph-index = 1
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. Ppg Industries, Inc. (1 from 2,825 patents)
1 patent:
1. 4704155 - Heating vessel lid construction for a glass melting furnace