Average Co-Inventor Count = 6.00
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. Schlumberger Technology Corporation (1 from 10,180 patents)
2. Extreme Engineering Ltd. (1 from 8 patents)
2 patents:
1. 7839719 - Fluid erosion protection washer for rotating shaft in MWD tool
2. 7532540 - Fluid erosion protection washer for rotating shaft in MWD tool