Average Co-Inventor Count = 1.00
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. Greif Bros. Corporation (1 from 37 patents)
1 patent:
1. 5273181 - Plastic drum with drain sump and method of making the same