Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919019 | Device for the removal or installation of fluorescent tubes of the single-pin type | Henry M. Unger | 1990-04-24 |
| 4791835 | Device for installing or removing fluorescent tubes from lighting fixtures | Henry M. Unger | 1988-12-20 |
| 4464078 | Locking mechanism for telescoped poles | — | 1984-08-07 |