Average Co-Inventor Count = 2.40
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. Fram Group IP LLC (2 from 70 patents)
2 patents:
1. 8747176 - Method of forming a spark plug
2. 8659216 - Spark plug assembly for enhanced ignitability