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Class Information
Number: 315/DIG.1
Name: Electric lamp and discharge devices: systems > Fluorescent lamp circuits with more than two principle electrodes
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6218782 |
Fluorescent lighting assembly with wireless ballast |
Apr. 17, 2001 |
| 6191539 |
Fluorescent lamp with integral conductive traces for extending low-end luminance and heating the lamp tube |
Feb. 20, 2001 |
| 6097155 |
Fluorescent lamp |
Aug. 1, 2000 |
| 6094015 |
Illumination unit and liquid crystal display device |
Jul. 25, 2000 |
| 5907218 |
Fluorescent lighting assembly with integral ballast |
May. 25, 1999 |
| 5747946 |
Gas discharge lamps and systems |
May. 5, 1998 |
| 5714848 |
Variable color discharge lamp |
Feb. 3, 1998 |
| 5420481 |
Fluorescent lamp with wide range of luminous intensities |
May. 30, 1995 |
| 5220249 |
Flat type fluorescent lamp and method of lighting |
Jun. 15, 1993 |
| 5150018 |
Gas discharge lamp with grid and control circuits therefor |
Sep. 22, 1992 |
| 5107183 |
Discharging method and small fluorescent lamp using the discharging method |
Apr. 21, 1992 |
| 4998045 |
Fluorescent lamp dimmer |
Mar. 5, 1991 |
| 4970441 |
Brightness stabilizing control of a VF display |
Nov. 13, 1990 |
| 4939430 |
Ignitor circuit for discharge lamps with novel ballast |
Jul. 3, 1990 |
| 4881014 |
Stabilized electric power apparatus for generating direct and alternating current simultaneously in one transformer |
Nov. 14, 1989 |
| 4739227 |
Fluorescent lamp dimming over large light output range |
Apr. 19, 1988 |
| 4654562 |
Flashing lamp unit |
Mar. 31, 1987 |
| 4625152 |
Tricolor fluorescent lamp |
Nov. 25, 1986 |
| 4575656 |
Starting aid for non-linear discharge lamps and method of making same |
Mar. 11, 1986 |
| 4553070 |
Electronic ballast for a discharge lamp |
Nov. 12, 1985 |
| 4504891 |
Fluorescent lamp system |
Mar. 12, 1985 |
| 4494046 |
Single cathode beam mode fluorescent lamp for DC use |
Jan. 15, 1985 |
| 4415840 |
Combined flash tube and quench tube apparatus |
Nov. 15, 1983 |
| 4358701 |
Discharge lamps having internal starting aid capacitively coupled to one of the electrodes |
Nov. 9, 1982 |
| 4350929 |
Fluorescent lighting device |
Sep. 21, 1982 |
| 4329622 |
Low pressure gas discharge lamp with increased end illumination |
May. 11, 1982 |
| 4328446 |
Method and apparatus for starting high intensity discharge lamps |
May. 4, 1982 |
| 4097777 |
Arc discharge lamp including starting circuit |
Jun. 27, 1978 |
| 4074172 |
Discharge lamp operating circuit |
Feb. 14, 1978 |
| 4051407 |
Arrangement including a gas and/or vapor discharge lamp |
Sep. 27, 1977 |
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