Average Co-Inventor Count = 1.33
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. Institut Francais Du Pe'trole (2 from 2,424 patents)
2 patents:
1. 5321982 - Method for measuring the rate of penetration of an equipment progressing
2. 4926686 - Method for determining the wear of the cutting means of a tool during