Average Co-Inventor Count = 5.00
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. Schlumberger Technology Corporation (2 from 10,180 patents)
2 patents:
1. 6267181 - Method and apparatus for cementing a well
2. 6098710 - Method and apparatus for cementing a well