Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9885471 | Multiple electronic tag holder | Mark Dirsa, Jeff Keisling, Robert Baran, John Devaney | 2018-02-06 |
| 9362762 | Battery pack and cap lamp system | Mark Dirsa | 2016-06-07 |
| 8922159 | Battery pack for powering miner's cap lamp | Mark Dirsa | 2014-12-30 |
| 8729851 | Battery pack for miner's cap lamp with charging and discharging control module | Mark Dirsa | 2014-05-20 |
| 8690375 | Power cord mounted electronic module for portable lamp | John Devaney, Mark Dirsa | 2014-04-08 |
| 7563001 | Module adapter for portable light sources | John Devaney, Mark Dirsa | 2009-07-21 |
| D528504 | Battery housing | — | 2006-09-19 |