Average Co-Inventor Count = 2.29
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. Ezra C. Lundahl, Inc. (4 from 10 patents)
4 patents:
1. 4951452 - Large bale hay baler
2. 4258886 - Variable stack feeder with hydraulic control
3. 4187990 - Metering stack feeder and methods
4. 4163524 - Variable stack feeder and method