Average Co-Inventor Count = 2.07
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. Graco Inc. (2 from 190 patents)
2. Other (1 from 832,680 patents)
3 patents:
1. 5860794 - Double diaphragm pump with air valve block moving in a rectangular
2. D372034 - Reciprocating pump
3. 5366353 - Air valve with bleed feature to inhibit icing