Assignee
TUNGSRAM RESZVENYTARSASAG
HU·29 granted patents·288 citations·filing 1983–1993
Top patents by PatentIndex Score
29 records- 0186US4912364AThree-phase high-pressure gas discharge lamp filled with a gas containing sodium or a metal-halideTUNGSRAM RESZVENYTARSASAG·Filed 1988·Granted Mar 27, 1990·48 cites·17 claims
- 0271US4843266AMetal-halogen discharge lamp with conically shaped insulating elements in outer envelopeTUNGSRAM RESZVENYTARSASAG·Filed 1987·Granted Jun 27, 1989·20 cites·5 claims
- 0368US4959588ADischarge lamp having a discharge vessel made with a ceramic closing member with an indented inner surfaceTUNGSRAM RESZVENYTARSASAG·Filed 1989·Granted Sep 25, 1990·19 cites·7 claims
- 0463US4799912AMethod and apparatus for producing discharge tubes for sodium vapor lampsTUNGSRAM RESZVENYTARSASAG·Filed 1987·Granted Jan 24, 1989·19 cites·7 claims
- 0561US4654758AHeadlampTUNGSRAM RESZVENYTARSASAG·Filed 1985·Granted Mar 31, 1987·26 cites·1 claims
- 0658US4531074AElectrical current inlet particularly for discharge tubes of high pressure discharge light sourcesTUNGSRAM RESZVENYTARSASAG·Filed 1983·Granted Jul 23, 1985·9 cites·10 claims
- 0753US5004948ALuminescent material, especially for application in mercury vapor gas discharge light sources, and mercury vapor gas discharge light sourceTUNGSRAM RESZVENYTARSASAG·Filed 1989·Granted Apr 2, 1991·14 cites·14 claims
- 0847US4923529AEquipment for continuous heat treatment of tungsten filaments wound on molybdenum coresTUNGSRAM RESZVENYTARSASAG·Filed 1988·Granted May 8, 1990·8 cites·10 claims
- 0947US4870318AProjector lamp emitting color lightTUNGSRAM RESZVENYTARSASAG·Filed 1988·Granted Sep 26, 1989·18 cites·20 claims
- 1044US5176441ALamp with a reflector envelopeTUNGSRAM RESZVENYTARSASAG·Filed 1991·Granted Jan 5, 1993·16 cites·6 claims
- 1143US4733338AIlluminator, particularly for street lighting and industrial applicationsTUNGSRAM RESZVENYTARSASAG·Filed 1986·Granted Mar 22, 1988·8 cites·20 claims
- 1242US5285128ALow-pressure discharge lampTUNGSRAM RESZVENYTARSASAG·Filed 1992·Granted Feb 8, 1994·8 cites·8 claims
- 1338US4658184AMethod of triggering a high pressure sodium vapor lamp and sodium vapor lamp with improved triggeringTUNGSRAM RESZVENYTARSASAG·Filed 1985·Granted Apr 14, 1987·8 cites·14 claims
- 1436US5170095ALow-pressure mercury vapor discharge light source of high wall loadabilityTUNGSRAM RESZVENYTARSASAG·Filed 1991·Granted Dec 8, 1992·8 cites·11 claims
- 1535US4689172AProcess of surface treating luminescent materialsTUNGSRAM RESZVENYTARSASAG·Filed 1986·Granted Aug 25, 1987·7 cites·11 claims
- 1634US4678958AHigh pressure sodium vapor lamp with improved color reproduction indexTUNGSRAM RESZVENYTARSASAG·Filed 1985·Granted Jul 7, 1987·4 cites·1 claims
- 1733US5006489ASoldering enamel for preparing an end seal of a ceramic discharge envelope of a discharge lampTUNGSRAM RESZVENYTARSASAG·Filed 1989·Granted Apr 9, 1991·7 cites·2 claims
- 1833US4861302AProcess for flushing and filling a low pressure gas discharge light sourceTUNGSRAM RESZVENYTARSASAG·Filed 1988·Granted Aug 29, 1989·4 cites·7 claims
- 1932US4651261APar lampTUNGSRAM RESZVENYTARSASAG·Filed 1985·Granted Mar 17, 1987·8 cites·4 claims
- 2028US5206558ALight source provided with light reflecting meansTUNGSRAM RESZVENYTARSASAG·Filed 1991·Granted Apr 27, 1993·4 cites·3 claims
- 2128US4925422AExhaust head for compact fluorescent lampsTUNGSRAM RESZVENYTARSASAG·Filed 1988·Granted May 15, 1990·1 cites·2 claims
- 2227US5370942AWelding auxiliary materialTUNGSRAM RESZVENYTARSASAG·Filed 1992·Granted Dec 6, 1994·1 cites·5 claims
- 2327US5109182AMethod of manufacturing incandescent lamps with halogen, particularly fluorine filling and incandescent lamp manufactured by the methodTUNGSRAM RESZVENYTARSASAG·Filed 1990·Granted Apr 28, 1992·1 cites·9 claims
- 2426US4610217AApparatus for electrostatic spraying of the insides of lamp envelopesTUNGSRAM RESZVENYTARSASAG·Filed 1984·Granted Sep 9, 1986·7 cites·3 claims
- 2524US5101138AHalogen-filled incandescent lamp and inside current conductor thereforTUNGSRAM RESZVENYTARSASAG·Filed 1990·Granted Mar 31, 1992·5 cites·6 claims
- 2623US5073742AIncandescent lamp with mounting assemblyTUNGSRAM RESZVENYTARSASAG·Filed 1990·Granted Dec 17, 1991·3 cites·9 claims
- 2722US5355052AHigh pressure discharge lamp with getterTUNGSRAM RESZVENYTARSASAG·Filed 1993·Granted Oct 11, 1994·1 cites·4 claims
- 2822US4898554AMethod of and equipment for ageing a low-pressure hot-cathode discharge light source, particularly a fluorescent lampTUNGSRAM RESZVENYTARSASAG·Filed 1989·Granted Feb 6, 1990·2 cites·14 claims
- 2921US5169000AContainer boxTUNGSRAM RESZVENYTARSASAG·Filed 1992·Granted Dec 8, 1992·4 cites·9 claims
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