Issued Patents All Time
Showing 25 most recent of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9129791 | RF coupler stabilization in an induction RF fluorescent light bulb | Valery Godyak | 2015-09-08 |
| 8872426 | Arrangements and methods for triac dimming of gas discharge lamps powered by electronic ballasts | Felix I. Alexandrov, James N. Lester | 2014-10-28 |
| 8698413 | RF induction lamp with reduced electromagnetic interference | Valery Godyak, James N. Lester | 2014-04-15 |
| 7795814 | Interconnection feedthroughs for ceramic metal halide lamps | — | 2010-09-14 |
| 7714512 | High red color rendition metal halide lamp | Stefaan Lambrechts, Huiling Zhu, Timothy Kelly | 2010-05-11 |
| 7652429 | Electrodes with cermets for ceramic metal halide lamps | — | 2010-01-26 |
| 7339330 | Methods and circuits for instant hot restart of high intensity discharge lamps | Nanu Brates, John C. Chamberlain, Shinichi Anami | 2008-03-04 |
| 7323824 | Methods and apparatus for operating very high pressure short arc discharge lamps | Nanu Brates | 2008-01-29 |
| 7279840 | Electrodeless fluorescent lamp with controlled cold spot temperature | Robert Chandler | 2007-10-09 |
| 7262553 | High efficacy metal halide lamp with configured discharge chamber | Nanu Brates, Shinichi Anami, Huiling Zhu, Stefaan Lambrechts | 2007-08-28 |
| 7164232 | Seal for ceramic discharge lamp arc tube | Nanu Brates, Huiling Zhu | 2007-01-16 |
| 7138765 | High efficacy lamp in a configured chamber | Shinichi Anami, Nanu Brates, Stefaan Lambrechts, Huiling Zhu | 2006-11-21 |
| 7088033 | Electrodeless fluorescent lamp with stabilized operation at high and low ambient temperatures | Robert Chandler, Oleg Popov | 2006-08-08 |
| 7057350 | Metal halide lamp with improved lumen value maintenance | Stefaan Lambrechts, Nobuyoshi Takeuchi | 2006-06-06 |
| 7049768 | High intensity discharge lamps with electronic control of dimming | Huiling Zhu | 2006-05-23 |
| 6979958 | High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber | Huiling Zhu, Shin Ukegawa, Hiroshi Nohara | 2005-12-27 |
| 6819050 | Metal halide lamp with trace T1I filling for improved dimming properties | Huiling Zhu, Stefaan Lambrechts | 2004-11-16 |
| 6768248 | Electrodeless lamp | Robert Chandler, Oleg Popov, Edward K. Shapiro | 2004-07-27 |
| 6717364 | Thallium free—metal halide lamp with magnesium halide filling for improved dimming properties | Huiling Zhu | 2004-04-06 |
| 6605888 | Metal halide lamp with enhanced red emission, in excess of a blackbody | John F. Waymouth, Timothy Kelly, Stefaan Lambrechts | 2003-08-12 |
| 6555954 | Compact electrodeless fluorescent lamp with improved cooling | Robert Chandler, Edward K. Shapiro, Oleg Popov | 2003-04-29 |
| 6548965 | Electrodeless fluorescent lamp with low wall loading | Oleg Popov, Robert Chandler | 2003-04-15 |
| 6501220 | Thallium free—metal halide lamp with magnesium and cerium halide filling for improved dimming properties | Stefaan Lambrechts | 2002-12-31 |
| 6441564 | High efficacy pulsed, dimmable high pressure cesium lamp | Hongyan Gu, Martin Muzeroll, John C. Chamberlain | 2002-08-27 |
| 6433478 | High frequency electrodeless compact fluorescent lamp | Robert Chandler, Oleg Popov, Edward K. Shapiro | 2002-08-13 |