Average Co-Inventor Count = 6.00
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. Metallgesellschaft Aktiengesellschaft (1 from 642 patents)
2. St. Joe Minerals Corporation (1 from 10 patents)
1 patent:
1. 4200454 - Process for the volatilization of zinc and/or lead from metallurgical