Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D435121 | Roof tile | John A. Fifield | 2000-12-12 |
| D356873 | Roof tile | John A. Fifield | 1995-03-28 |
| 4574536 | Roof tile | George Clinton Brookhart, Jr., Alan H. Sabatino | 1986-03-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D435121 | Roof tile | John A. Fifield | 2000-12-12 |
| D356873 | Roof tile | John A. Fifield | 1995-03-28 |
| 4574536 | Roof tile | George Clinton Brookhart, Jr., Alan H. Sabatino | 1986-03-11 |