Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672900 | Write input transaction apparatus and method | David M. J. Allgeier, Robert L. Protheroe, John Crooks | 2010-03-02 |
| 6539363 | Write input credit transaction apparatus and method with paperless merchant credit card processing | David M. J. Allgeier, Robert L. Protheroe, John Crooks | 2003-03-25 |
| 5949348 | Method and apparatus for variable keyboard display | Michael A. Kapp, Tom Donnelly, David Ellis, David M. J. Allgeier, Robert L. Protheroe | 1999-09-07 |