Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D392748 | Doorlite | David L. Williams, Stephen J. Sparer | 1998-03-24 |
| D389925 | Doorlite | David L. Williams, Stephen J. Sparer | 1998-01-27 |
| D389924 | Doorlite | David L. Williams, Stephen J. Sparer | 1998-01-27 |
| D388885 | Door lite | David L. Williams, Stephen J. Sparer | 1998-01-06 |
| D384423 | Doorway sidelite | David L. Williams, Stephen J. Sparer | 1997-09-30 |
| D383552 | Doorway transom | David L. Williams, Stephen J. Sparer | 1997-09-09 |
| D383221 | Doorlite | David L. Williams, Stephen J. Sparer | 1997-09-02 |
| D380839 | Doorway sidelite | David L. Williams, Stephen J. Sparer | 1997-07-08 |
| D380840 | Doorlite | David L. Williams, Stephen J. Sparer | 1997-07-08 |
| D380279 | Doorlite | David L. Williams, Stephen J. Sparer | 1997-06-24 |
| D373642 | Doorway transom | David L. Williams, Stephen J. Sparer | 1996-09-10 |