Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993764 | Door jamb security apparatus | — | 1991-02-19 |
| 4862658 | Door jamb alignment and security apparatus | William Barker | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993764 | Door jamb security apparatus | — | 1991-02-19 |
| 4862658 | Door jamb alignment and security apparatus | William Barker | 1989-09-05 |