Average Co-Inventor Count = 1.20
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. Allis-chalmers Corporation (3 from 532 patents)
3 patents:
1. 4159613 - Mower attachment with drive subassembly adapted for detachable
2. 4156337 - Pivotally mounted grass catcher for riding mower
3. 4106269 - Adjustable ground roller for mower