Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8475230 | Method and apparatus for jet-assisted drilling or cutting | David Archibold Summers, Klaus Woelk, Kenneth Doyle Oglesby | 2013-07-02 |
| 8257147 | Method and apparatus for jet-assisted drilling or cutting | David Archibold Summers, Klaus Woelk, Kenneth Doyle Oglesby | 2012-09-04 |