Average Co-Inventor Count = 12.00
ph-index = 1
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 (1 from 8,451 patents)
2. Donaldson Comapny, Inc. (1,404 patents)
1 patent:
1. D913334 - Air intake device for an internal combustion engine