Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788007 | Use of arc straightening in HID lamps operated at VHF frequencies | — | 2004-09-07 |
| 6737815 | Reducing vertical segregation in a HID lamp operated at VHF frequencies using simultaneous arc straightening and color mixing | — | 2004-05-18 |
| 6696800 | High frequency electronic ballast | Jerzy Janczak, Hendrik Anton Van Esveld, Ronald Hans Van Der Voort | 2004-02-24 |
| 6650056 | Stabilizing short-term color temperature in a ceramic high intensity discharge lamp | — | 2003-11-18 |
| 6580231 | Color mixing in HID lamp at VHF frequencies | — | 2003-06-17 |
| 6483259 | Method and apparatus for determining power frequencies that cause arc instabilities in discharge lamps | — | 2002-11-19 |
| 6437517 | Method and system for exciting an azimuthal acoustic and longitudinal acoustic combination mode | — | 2002-08-20 |
| 6400100 | System and method for determining the frequency of longitudinal mode required for color mixing in a discharge lamp | — | 2002-06-04 |
| 6184633 | Reduction of vertical segregation in a discharge lamp | — | 2001-02-06 |
| 5965976 | Gas discharge lamps fabricated by micromachined transparent substrates | Babar A. Khan, David A. Cammack, Ronald D. Pinker, Vivek Mehrotra | 1999-10-12 |
| 5727975 | Arc tube for electrodeless lamp | George C. Wei, John Walsh, Walter P. Lapatovich | 1998-03-17 |
| 5621275 | Arc tube for electrodeless lamp | George C. Wei, John Walsh, Walter P. Lapatovich | 1997-04-15 |
| 5438343 | Gas discharge displays and methodology for fabricating same by micromachining technology | Babar A. Khan, David A. Cammack, Ronald D. Pinker | 1995-08-01 |
| 4801846 | Rare earth halide light source with enhanced red emission | Walter P. Lapatovich | 1989-01-31 |
| 4593397 | Electrodeless short pulse laser | Joseph M. Proud, Donald H. Baird, Joseph E. Lester | 1986-06-03 |
| 4223250 | Protective coatings for light sources | Paul O. Haugsjaa | 1980-09-16 |
| 4206387 | Electrodeless light source having rare earth molecular continua | William H. McNeill, Paul O. Haugsjaa | 1980-06-03 |