Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536543 | Rotary drill bits exhibiting sequences of substantially continuously variable cutter backrake angles | Matthew J. Meiners, Jeffrey B. Lund | 2003-03-25 |
| D468211 | Bottle | — | 2003-01-07 |