Average Co-Inventor Count = 2.25
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. The Nash Engineering Company (3 from 45 patents)
3 patents:
1. D285447 - Two-stage pump
2. D283224 - Pump
3. 3958603 - Insert for movable diaphragm type flow control valve