Assignee
NAT SERVICE IND INC
US·29 granted patents·2,400 citations·filing 1974–1997
Top patents by PatentIndex Score
29 records- 0199US5463280ALight emitting diode retrofit lampNAT SERVICE IND INC·Filed 1994·Granted Oct 31, 1995·803 cites·8 claims
- 0296US4875871AModular electrical conductor systemNAT SERVICE IND INC·Filed 1984·Granted Oct 24, 1989·158 cites·31 claims
- 0393US4146287ALighting and power system and connectors thereforNAT SERVICE IND INC·Filed 1977·Granted Mar 27, 1979·79 cites·6 claims
- 0492US5887968ALight distribution reflector for exit signs and the illuminated by LED arraysNAT SERVICE IND INC·Filed 1997·Granted Mar 30, 1999·96 cites·36 claims
- 0592US4001571ALighting systemNAT SERVICE IND INC·Filed 1974·Granted Jan 4, 1977·293 cites·15 claims
- 0691US4323953AFloodlightNAT SERVICE IND INC·Filed 1980·Granted Apr 6, 1982·79 cites·5 claims
- 0790US5640792ALighting fixturesNAT SERVICE IND INC·Filed 1995·Granted Jun 24, 1997·119 cites·20 claims
- 0889US5823663AFluorescent troffer lighting fixtureNAT SERVICE IND INC·Filed 1996·Granted Oct 20, 1998·120 cites·29 claims
- 0988US5707143APull-on clip for downlight reflector trimNAT SERVICE IND INC·Filed 1996·Granted Jan 13, 1998·79 cites·20 claims
- 1087US5806972ALight trap and louver mounting to fluorescent troffer lighting fixtureNAT SERVICE IND INC·Filed 1996·Granted Sep 15, 1998·82 cites·26 claims
- 1185US5452193AInclined ceiling downlight fixturesNAT SERVICE IND INC·Filed 1993·Granted Sep 19, 1995·53 cites·18 claims
- 1281US4248657AApparatus for covering panels with sheet materialNAT SERVICE IND INC·Filed 1979·Granted Feb 3, 1981·51 cites·7 claims
- 1378US4460948AUniversal luminaire mountNAT SERVICE IND INC·Filed 1983·Granted Jul 17, 1984·69 cites·16 claims
- 1475US5526251AEmergency lighting connectionsNAT SERVICE IND INC·Filed 1994·Granted Jun 11, 1996·46 cites·32 claims
- 1571US5202608AEmergency lighting system utilizing improved and rapidly installable fluorescent inverterNAT SERVICE IND INC·Filed 1991·Granted Apr 13, 1993·29 cites·5 claims
- 1670US4993624ATwo-way bar code window envelopeNAT SERVICE IND INC·Filed 1990·Granted Feb 19, 1991·51 cites·8 claims
- 1768US5165523ASelectively removable block and pusher assembly and feed chain thereforNAT SERVICE IND INC·Filed 1991·Granted Nov 24, 1992·20 cites·14 claims
- 1866US5611163ADirection indicator covers for emergency lighting systemsNAT SERVICE IND INC·Filed 1994·Granted Mar 18, 1997·31 cites·22 claims
- 1966US4300190ALighting fixture mountNAT SERVICE IND INC·Filed 1979·Granted Nov 10, 1981·25 cites·9 claims
- 2063US4219869AApparatus for mounting and supplying power to a luminaireNAT SERVICE IND INC·Filed 1978·Granted Aug 26, 1980·22 cites·9 claims
- 2162US4443211AEnvelope assembly apparatusNAT SERVICE IND INC·Filed 1981·Granted Apr 17, 1984·20 cites·7 claims
- 2258US4219868APlug-in lighting systemNAT SERVICE IND INC·Filed 1978·Granted Aug 26, 1980·15 cites·5 claims
- 2351US5814971AEmergency florescent inverter for magnetic and electronic ballastsNAT SERVICE IND INC·Filed 1997·Granted Sep 29, 1998·16 cites·16 claims
- 2440US4180340ABinder post connectionNAT SERVICE IND INC·Filed 1978·Granted Dec 25, 1979·11 cites·7 claims
- 2537US4046358AMethod and apparatus for mixing and dispensing materialNAT SERVICE IND INC·Filed 1976·Granted Sep 6, 1977·7 cites·15 claims
- 2634US4805787AHanging compartment support systemNAT SERVICE IND INC·Filed 1986·Granted Feb 21, 1989·14 cites·13 claims
- 2732US4636072AMethod and apparatus for improved photometric testing of high intensity discharge lamps and luminairesNAT SERVICE IND INC·Filed 1983·Granted Jan 13, 1987·4 cites·2 claims
- 2828US5125885ABonded envelope stack and method and apparatus for making sameNAT SERVICE IND INC·Filed 1990·Granted Jun 30, 1992·4 cites·16 claims
- 2927US4671585ALuminaire adaptor assemblyNAT SERVICE IND INC·Filed 1986·Granted Jun 9, 1987·4 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →