Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9386880 | Waffle maker | Daniel D. Friel, Sr., Daniel Friel, H. William Busch, Jr., James Fitzgerald | 2016-07-12 |
| D588395 | Electric pizzelle maker | Daniel D. Friel, Jr., Abraham Leibson | 2009-03-17 |
| D530143 | Waffle maker | Abraham Leibson, Daniel D. Friel, Sr., Daniel D. Friel, Jr. | 2006-10-17 |
| 6875093 | Sharpening device | Daniel D. Friel, Sr., Daniel D. Friel, Jr. | 2005-04-05 |