Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5498930 | Method of dimensioning and operating a low pressure discharge lamp | Helmut M. Loy, Armin Eich | 1996-03-12 |
| 4814663 | Fluorescent lamp for unipolar mode of operation | Helmut M. Loy, Armin Eich | 1989-03-21 |