Average Co-Inventor Count = 4.00
ph-index = 3
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 (2 from 23 patents)
2. Manufacturers Hanover Trust Company (1 from 10 patents)
3 patents:
1. 4896783 - Container and cap assembly
2. D297860 - Filter unit
3. 4689147 - Plastic filter assembly