RM

Ricki Don Marshall

BI Bitswave: 4 patents #1 of 12Top 9%
Schlumberger Technology: 1 patents #3,893 of 7,293Top 55%
Overall (All Time): #983,193 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9970237 Steerable earth boring assembly Treston Greggory Davis 2018-05-15
9890592 Drive shaft for steerable earth boring assembly Treston Greggory Davis 2018-02-13
9890593 Steerable earth boring assembly having flow tube with static seal Treston Greggory Davis 2018-02-13
9580968 Rotary steerable drilling tool with electromagnetic steering system Ce Liu, Treston Greggory Davis, Jing Li 2017-02-28
8570045 Drilling system for making LWD measurements ahead of the bit Borislav J. Tchakarov, Stephen D. Bonner, Treston Greggory Davis 2013-10-29