Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309060 | Electroluminescent lamp | Eugene W. McManus | 1994-05-03 |
| 5184969 | Electroluminescent lamp and method for producing the same | Eugene W. McManus | 1993-02-09 |
| 4469452 | Indicator system and means for irreversibly recording a temperature limit | Joseph Lichtenstein | 1984-09-04 |
| 4391283 | Incentive spirometer | Marvin Gordon, Joseph Lichtenstein | 1983-07-05 |