Average Co-Inventor Count = 1.00
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. Champion Spark Plug Company (3 from 104 patents)
3 patents:
1. D293584 - Air compressor
2. D293585 - Air compressor
3. D293446 - Air compressor