Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D608915 | Cap and pan roof tile | John A. Fifield, Brian Austin, Jason Rhees, David Skierkowski | 2010-01-26 |
| D604432 | Cap and pan roof tiles | John A. Fifield, Brian Austin, Jason Rhees, David Skierkowski | 2009-11-17 |
| D604433 | Notched mission roof tile | John A. Fifield, Brian Austin, Jason Rhees, David Skierkowski | 2009-11-17 |
| 5094023 | Roadway safety sign stand apparatus | — | 1992-03-10 |