Patents/Inventors

Tom S. Roberts

Montgomery, TXUS2 patents

3 Patents

US126128262026
Drill Bit Cutter Elements with Multiple Surface Finishes
NATIONAL OILWELL VARCO, L.P.
0 cites
US124488522025
Fixed Cutter Drill Bits and Cutter Element with Secondary Cutting Edges for Same
NATIONAL OILWELL VARCO, L.P.
0 cites
US121400272024
Particle Impact Drill Bits and Associated Methods
National Oilwell Varco, L.P.
0 cites