Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7820924 | Multi-direction switch for a cursor device | Russell L. Stilley, Darrell Lee Johnson, Jose Fernandez, Russell Melvin Rosenquist, Thomas Brian Olson | 2010-10-26 |
| 5139423 | Electronic teaching device | Brian C. McCormack, Robert Greenberg, Glen A. Thornton, Gary G. Bitter | 1992-08-18 |
| 5137457 | Electronic teaching device | Robert Greenberg, Brian C. McCormack, Glen A. Thornton, Gary G. Bitter | 1992-08-11 |
| 5135398 | Electronic teaching device | Glen A. Thornton, Robert Greenberg, Brian C. McCormack, Gary G. Bitter | 1992-08-04 |