Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891480 | Self-aligning safety sensors | Gerald H. Williams | 2005-05-10 |
| 5188163 | Bracket assembly for an overhead door | Donald Schwartzengraber | 1993-02-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891480 | Self-aligning safety sensors | Gerald H. Williams | 2005-05-10 |
| 5188163 | Bracket assembly for an overhead door | Donald Schwartzengraber | 1993-02-23 |