Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6571887 | Directional flow nozzle retention body | James L. Larsen, Michael A. Siracki, Chris E. Cawthorne | 2003-06-03 |
| 6561293 | Cutter element with non-linear, expanded crest | James C. Minikus, Chris E. Cawthorne, Stephen C. Steinke, Gary R. Portwood, Gary E. Garcia +1 more | 2003-05-13 |
| 6533051 | Roller cone drill bit shale diverter | Amardeep Singh, Dennis Cisneros, Sujian Huang | 2003-03-18 |