Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497281 | Roller cone drill bits with enhanced cutting elements and cutting structures | Shilin Chen | 2009-03-03 |
| 7334652 | Roller cone drill bits with enhanced cutting elements and cutting structures | Shilin Chen | 2008-02-26 |
| 6536192 | Drill bit packages and methods | William W. King, William C. Saxman, Jeffery Peck, Karl Knecht, Lee Morgan Smith +3 more | 2003-03-25 |
| 6169967 | Cascade method and apparatus for providing engineered solutions for a well programming process | Paul Ronald Riederer, Bruno Cuillier | 2001-01-02 |