Patents/Inventors

Guodong (David) Zhan

DhahranSA4 patents

4 Patents

US118984222024
Diamond Coating on the Cone for Expandable Tubulars
SAUDI ARABIAN OIL COMPANY
0 cites
US118212632023
Reversible Polycrystalline Diamond Compact Bit
SAUDI ARABIAN OIL COMPANY
0 cites
US118080892023
Coatings to Prevent Cutter Loss in Steel Body PDC Downhole Tools
SAUDI ARABIAN OIL COMPANY
0 cites
US116086892023
Rotatable Multi-head Ball Bits
SAUDI ARABIAN OIL COMPANY
0 cites