Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9527701 | Dual drive winch and nuclear reactor vessel maintenance apparatus employing same | David P. Ketcham, Robert T. Fells | 2016-12-27 |
| 8634513 | System for exchanging a component of a nuclear reactor | David P. Ketcham, Brian Campbell | 2014-01-21 |
| 8561287 | Under vessel local power range monitor exchange tool | David P. Ketcham, Brian Campbell | 2013-10-22 |
| 8254516 | Control rod drive outer filter removal tool | David P. Ketcham, Robert T. Fells | 2012-08-28 |