Average Co-Inventor Count = 2.00
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. Shell Western E&p Inc. (1 from 22 patents)
2. Shell Canada Limited (1 from 8 patents)
1 patent:
1. 5108272 - Sucker rod pump