Average Co-Inventor Count = 1.00
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. Nalge Company (1 from 23 patents)
2. Manufactures Hanover Trust Company (1 from 1 patent)
2 patents:
1. 4849061 - Method of making plastic filter units having a welded cellulose filter
2. 4702834 - Plastic filter units having a weld cellulose filter