Average Co-Inventor Count = 1.33
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. Deere + Company (2 from 8,451 patents)
2 patents:
1. 4183419 - Hydrostatic front wheel drive system
2. 4177870 - Hydrostatic front wheel drive system