Average Co-Inventor Count = 1.00
ph-index = NA
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. Perkins Engines Company Limited (1 from 166 patents)
1 patent:
1. 12467395 - Onboard device and method for checking diesel exhaust fluid quality