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. Grinnell Corporation (2 from 42 patents)
2 patents:
1. D348017 - Water meter register and housing
2. D348018 - Water meter, register and housing