Average Co-Inventor Count = 2.57
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. Other (2 from 832,912 patents)
2. Cashco, Inc. (1 from 7 patents)
3 patents:
1. 7383855 - Sanitary tank vent valve
2. 5975131 - Tank valve and opening sensor
3. 5497725 - Sight indicator