Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D472536 | Telephone | Robert Schramm, Stephen G. Miggels, Henry J. Mack, Jr., David Stowers | 2003-04-01 |
| D472537 | Telephone | Robert Schramm, Stephen G. Miggels, Henry J. Mack, Jr., David Stowers | 2003-04-01 |
| D472236 | Telephone | Robert Schramm, Stephen G. Miggels, Henry J. Mack, Jr., David Stowers | 2003-03-25 |