Average Co-Inventor Count = 2.25
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. Massey-ferguson Services N.v. (3 from 133 patents)
3 patents:
1. 4811795 - Seed drill
2. 4301643 - Agricultural mowers
3. 4030641 - Implements for delivering particulate material to the ground