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. E.i. Dupont De Nemours and Company (2 from 16,338 patents)
2 patents:
1. 5308494 - Method for improving filter efficiency
2. 5043069 - Filtration device having hardened gum formed-in-place membranes