Average Co-Inventor Count = 2.00
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. Brooklyn Union Gas Co. (2 from 21 patents)
2. Umac Incorporated (2 from 9 patents)
2 patents:
1. 4410391 - Apparatus for relining an underground gas line or the like without
2. 4394202 - Method for relining an underground gas line or the like without