Average Co-Inventor Count = 2.40
ph-index = 4
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. Sperry Corporation (3 from 1,032 patents)
2. Sperry Rand Corporation (1 from 628 patents)
4 patents:
1. 4498830 - Bale unrolling apparatus
2. 4495756 - Pickup attachment for harvesting machines
3. 4333304 - Adjustable crop guide apparatus
4. 4086749 - Adjustable width row crop header