Average Co-Inventor Count = 2.40
ph-index = 2
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. Perma-Column, Inc (2 from 2 patents)
2 patents:
1. 9540814 - Foundation column
2. 6964139 - Precast concrete column for use in post-frame construction