Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8967730 | Wethead seal design for continuous mining machine | Darren B. Antoine, Todd William Wampler, Estel Owens, Steven M. Shaffer | 2015-03-03 |
| 8292015 | Battery-powered mining vehicle | Jeffrey Looney | 2012-10-23 |
| 6945738 | Method and apparatus for safety protection of temporary roof support | David Wallace, Michael Twigger, Chitra Ranganathan | 2005-09-20 |
| 4489367 | Headlight permissible for use in explosive atmospheres | Charles R. Herron, Marvin L. Haines | 1984-12-18 |