Average Co-Inventor Count = 3.00
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. Hach Company (1 from 223 patents)
2. Nestec Ltd (45 patents)
3. Environmental Test Systems, Inc. (10 patents)
4. Nestle Purina Petcare Company (0 patent)
5. Vladimir Evtodienko (0 patent)
6. Ronald A., II Lewis (0 patent)
7. Lydia J. Dobler (0 patent)
8. Michael A. Van Lente (0 patent)
9. Iouri Evtodienko (0 patent)
1 patent:
1. 7033839 - Quick acting toxic ammonia test for aqueous samples