Average Co-Inventor Count = 1.50
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. Sperry Corporation (2 from 1,032 patents)
2 patents:
1. 4446875 - Stone trap for combine harvesters
2. 4344443 - Cleaning apparatus of combine harvesters