Average Co-Inventor Count = 4.44
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. Gunderson, Inc. (2 from 85 patents)
2 patents:
1. 12286141 - Hopper railroad car having top hatch cover assembly
2. 11713061 - Hopper railroad car having top hatch cover assembly