Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439326 | Centered-leg roller cone drill bit | Chris E. Cawthorne | 2002-08-27 |
| 6374930 | Cutting structure for roller cone drill bits | Amardeep Singh | 2002-04-23 |
| 6361873 | Composite constructions having ordered microstructures | Zhou Yong, Michael A. Siracki, Chris E. Cawthorne, J. Albert Sue, Ghanshyam Rai +1 more | 2002-03-26 |