Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664790 | Automated diagnostic tester for HID lamp luminaires | John Cook, George E. Keifer | 2003-12-16 |
| 6608451 | Ballast circuit with an ignitor for starting multiple HID lamps | — | 2003-08-19 |
| 6563255 | Luminaire incorporating arc tube preheater | — | 2003-05-13 |
| 6531833 | Single ballast for powering at least one high intensity discharge lamp | John Henry Backs | 2003-03-11 |
| 6513952 | Socket mounting that allows lamp to remain vertical as fixture is tilted | David Martin Johnson | 2003-02-04 |