Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7583030 | Dopant-free tungsten electrodes in metal halide lamps | Chakrapani Varanasi, Abbas Lamouri, Ajaypal S. Naruka | 2009-09-01 |
| 7057335 | Barrier coatings and methods in discharge lamps | Tryggvi Emilsson, Chakrapani Varanasi | 2006-06-06 |
| 6910932 | Solid mercury releasing material and method of dosing mercury into discharge lamps | Duane A. Stafford, Steven C. Hansen, Katsumi Fukutome | 2005-06-28 |
| 6833676 | Solid lamp fill material and method of dosing HID lamps | — | 2004-12-21 |
| 6830495 | Solid lamp fill material and method of dosing HID lamps | — | 2004-12-14 |
| 6791254 | Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture | Duane A. Stafford, Steven C. Hansen | 2004-09-14 |
| 6661175 | Solid lamp fill material and method of dosing hid lamps | — | 2003-12-09 |
| 6339287 | Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture | James Sarver, Duane A. Stafford, Steven C. Hansen | 2002-01-15 |
| 5882237 | Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture | James Sarver, Duane A. Stafford, Steven C. Hansen | 1999-03-16 |