Average Co-Inventor Count = 3.43
ph-index = 1
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. Caterpillar Inc. (2 from 9,471 patents)
2 patents:
1. 8091352 - Ignition system
2. 7721702 - Spark plug having separate housing-mounted electrode