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Class Information
Number: 313/595
Name: Electric lamp and discharge devices > With gas or vapor > Three or more electrode discharge device > Internal start or control electrode between discharge electrodes
Description: Subject matter wherein the start or control electrode is between two spaced electrodes which are capable of having an electrical discharge there between in use, the start or control electrode being capable of starting or controlling the discharge of the ionized gas or vapor between the two spaced electrodes.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616176 |
Plasma display and driving method thereof |
Nov. 10, 2009 |
| 7405519 |
Flat fluorescent lamp and driving method thereof |
Jul. 29, 2008 |
| 7301283 |
Starting aid for low wattage metal halide lamps |
Nov. 27, 2007 |
| 7057345 |
Short arc discharge lamp and light source device |
Jun. 6, 2006 |
| 7053553 |
Starting aid for fluorescent lamp |
May. 30, 2006 |
| 7038383 |
Ignition aid for high intensity discharge lamp |
May. 2, 2006 |
| 7030564 |
Low-pressure discharge lamp |
Apr. 18, 2006 |
| 6906462 |
Gas discharge lamp with ignition assisting electrodes, especially for automobile headlights |
Jun. 14, 2005 |
| 6903518 |
Discharge lamp device and backlight using the same |
Jun. 7, 2005 |
| 6876139 |
Partitioned flat fluorescent lamp |
Apr. 5, 2005 |
| 6810208 |
Electric discharge tube, method of manufacturing the tube, stroboscopic device using the tube and camera |
Oct. 26, 2004 |
| 6806627 |
Probe stabilized arc discharge lamp |
Oct. 19, 2004 |
| 6806646 |
UV enhancer for a metal halide lamp |
Oct. 19, 2004 |
| 6707251 |
Flash discharge lamp |
Mar. 16, 2004 |
| 6445129 |
Gas discharge lamp, in particular for motor-vehicle headlights |
Sep. 3, 2002 |
| 6429588 |
Sodium high-pressure lamp having a starting aid |
Aug. 6, 2002 |
| 6153982 |
Discharge lamp and lighting system having a discharge lamp |
Nov. 28, 2000 |
| 6066920 |
Illumination device, method for driving the illumination device and display including the illumination device |
May. 23, 2000 |
| 6049174 |
High coulombic switch gas discharge device |
Apr. 11, 2000 |
| 5990599 |
High-pressure discharge lamp having UV radiation source for enhancing ignition |
Nov. 23, 1999 |
| 5949192 |
Operating apparatus for discharge lamp |
Sep. 7, 1999 |
| 5945790 |
Surface discharge lamp |
Aug. 31, 1999 |
| 5767934 |
Liquid-crystal display with foil heater and PTC sensor for backlight |
Jun. 16, 1998 |
| 5646483 |
Discharge lamp having cesium compound |
Jul. 8, 1997 |
| 5550430 |
Gas discharge closing switch with unitary ceramic housing |
Aug. 27, 1996 |
| 5418423 |
Capacitively coupled trigger for pseudogap cold cathode thyratrons |
May. 23, 1995 |
| 5373414 |
Surge absorber |
Dec. 13, 1994 |
| 5216325 |
Spark gap device with insulated trigger electrode |
Jun. 1, 1993 |
| 5187416 |
Arc discharge lamp with a vertical thermal switch extending between the lamp stem and inner neck wall |
Feb. 16, 1993 |
| 5066892 |
Glow discharge lamp with incandescent filament |
Nov. 19, 1991 |
| 5051649 |
Arc discharge lamp with liquid metal and heating means |
Sep. 24, 1991 |
| 5043636 |
High voltage switch |
Aug. 27, 1991 |
| 4939417 |
High pressure discharge lamp with incandescent filament for starting |
Jul. 3, 1990 |
| 4939418 |
Gas mixture for triggerable spark gaps |
Jul. 3, 1990 |
| 4935666 |
Spark gap devices |
Jun. 19, 1990 |
| 4931688 |
Multifunction gas triode |
Jun. 5, 1990 |
| 4891731 |
Gas discharge over-voltage arrestor having a line of ignition |
Jan. 2, 1990 |
| 4891730 |
Monolithic microwave integrated circuit terminal protection device |
Jan. 2, 1990 |
| 4890034 |
Thyratrons |
Dec. 26, 1989 |
| 4888518 |
Gas circulation apparatus for ceramic electron tubes |
Dec. 19, 1989 |
| 4853591 |
Multiple-tube compact low-pressure discharge fluorescent lamp |
Aug. 1, 1989 |
| 4839554 |
Apparatus for forming an electron beam sheet |
Jun. 13, 1989 |
| 4804888 |
Low starting voltage short-arc discharge lamp |
Feb. 14, 1989 |
| 4779026 |
Rapid-start high-pressure discharge lamp, and method of its operation |
Oct. 18, 1988 |
| 4761794 |
Thyratron having thermionic cathode material between anode and control grid |
Aug. 2, 1988 |
| 4758766 |
Gas discharge devices utilizing electron injection for gas ionization |
Jul. 19, 1988 |
| 4755719 |
Spark gap switch with jet pump driven gas flow |
Jul. 5, 1988 |
| 4703226 |
Thyratron having anode and multiple grids |
Oct. 27, 1987 |
| 4697121 |
Low-pressure mercury vapor discharge lamp |
Sep. 29, 1987 |
| 4645974 |
Discharge tube lighting system for use in a vehicle |
Feb. 24, 1987 |
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