Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952755 | Safety plate for electrical outlet | Stephen M. Engel | 1990-08-28 |
| 4798916 | Safety plate for electrical outlet | Stephen M. Engel | 1989-01-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952755 | Safety plate for electrical outlet | Stephen M. Engel | 1990-08-28 |
| 4798916 | Safety plate for electrical outlet | Stephen M. Engel | 1989-01-17 |