Average Co-Inventor Count = 1.00
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. Hydro-Rain, Inc. (3 from 4 patents)
2. The Leisure Group, Inc. (1 from 6 patents)
4 patents:
1. 4336918 - Diaphragm valve with multiple pivot axis valve element
2. 4301992 - Diaphragm valve
3. 4173328 - In-line shut-off valve
4. 4149045 - Automatic controller