Average Co-Inventor Count = 5.09
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. Sekisui Kagaku Kogyo Kabushiki Kaisha (1 from 232 patents)
2. Rib Loc Australia Pty Ltd. (1 from 11 patents)
2 patents:
1. 5101863 - Rehabilitating underground pipes with expanding helically wound liner
2. 4951758 - Method of drilling a branch line aperture after internal lining of a