Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6726546 | Method and apparatus for deburring machined workpieces | David Christian, David Lucas, Charles R. Hileman, Charles Mark Williams | 2004-04-27 |
| 6572455 | Method and apparatus for deburring machined workpieces | David Christian, David Lucas, Charles R. Hileman, Charles Mark Williams | 2003-06-03 |