Average Co-Inventor Count = 2.40
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. International Harvester Company (3 from 481 patents)
3 patents:
1. 4217746 - Crop deflector
2. 4161859 - Crop pickup device
3. 4106271 - Rotary knife stripper