Average Co-Inventor Count = 5.83
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. Nelson Industries, Inc. (2 from 109 patents)
2 patents:
1. 6478019 - Flat low profile diesel engine crankcase ventilation filter
2. 6247463 - Diesel engine crankcase ventilation filter