Average Co-Inventor Count = 4.29
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. Pierce Manufacturing Company (3 from 12 patents)
3 patents:
1. 8376719 - Fire pump for firefighting vehicle
2. 7784554 - Firefighting vehicle
3. 7111858 - Retractable step system