Assignee
CENTRAL SPRINKLER CORP
US·40 granted patents·2 pending applications·2,279 citations·filing 1976–2008
Top patents by PatentIndex Score
42 records- 0196US5829532ALow pressure, early suppression fast response sprinklersCENTRAL SPRINKLER CORP·Filed 1997·Granted Nov 3, 1998·97 cites·19 claims
- 0296US4066129ASprinkler head assemblyCENTRAL SPRINKLER CORP·Filed 1976·Granted Jan 3, 1978·109 cites·15 claims
- 0396US4014388AConcealed sprinkler assemblyCENTRAL SPRINKLER CORP·Filed 1976·Granted Mar 29, 1977·127 cites·12 claims
- 0495US6336509B1Low pressure fast response bulb sprinklersCENTRAL SPRINKLER CORP·Filed 2000·Granted Jan 8, 2002·70 cites·50 claims
- 0595US5971080AQuick response dry pipe sprinkler systemCENTRAL SPRINKLER CORP·Filed 1997·Granted Oct 26, 1999·128 cites·23 claims
- 0694US6533333B1Hinged mechanical couplings with interfitting endsCENTRAL SPRINKLER CORP·Filed 2000·Granted Mar 18, 2003·91 cites·26 claims
- 0793US5584344AExtended coverage ceiling sprinklers and systemsCENTRAL SPRINKLER CORP·Filed 1995·Granted Dec 17, 1996·70 cites·37 claims
- 0890US5366022AExtended coverage ceiling sprinklers and systemsCENTRAL SPRINKLER CORP·Filed 1992·Granted Nov 22, 1994·111 cites·80 claims
- 0990US4007878AAdjustable dry pendant sprinkler head assemblyCENTRAL SPRINKLER CORP·Filed 1976·Granted Feb 15, 1977·67 cites·20 claims
- 1088US5579846AExtended coverage ceiling sprinklers and systemsCENTRAL SPRINKLER CORP·Filed 1994·Granted Dec 3, 1996·85 cites·24 claims
- 1188US4976320AConcealed sprinkler with drop down deflector assembly, and improved fusible valve lever assemblyCENTRAL SPRINKLER CORP·Filed 1989·Granted Dec 11, 1990·88 cites·12 claims
- 1287US5439028AModular valve for a building standpipeCENTRAL SPRINKLER CORP·Filed 1993·Granted Aug 8, 1995·48 cites·31 claims
- 1387US5094298AFire sprinkler apparatusCENTRAL SPRINKLER CORP·Filed 1989·Granted Mar 10, 1992·91 cites·4 claims
- 1487US4711099APortable quick chilling deviceCENTRAL SPRINKLER CORP·Filed 1986·Granted Dec 8, 1987·75 cites·23 claims
- 1586US6139069AUniversal mechanical coupling with interfitting endsCENTRAL SPRINKLER CORP·Filed 1998·Granted Oct 31, 2000·67 cites·22 claims
- 1686US4854342AClapper seal for dry pipe valveCENTRAL SPRINKLER CORP·Filed 1988·Granted Aug 8, 1989·42 cites·9 claims
- 1786US4258795AOn-off sprinkler head having an offset drive motorCENTRAL SPRINKLER CORP·Filed 1979·Granted Mar 31, 1981·57 cites·1 claims
- 1886US4083410AAdjustable drop nipple for sprinkler headsCENTRAL SPRINKLER CORP·Filed 1976·Granted Apr 11, 1978·53 cites·4 claims
- 1983US5722599ASidewall fire sprinkler headCENTRAL SPRINKLER CORP·Filed 1996·Granted Mar 3, 1998·87 cites·20 claims
- 2083US5295503AModular valve for a building standpipeCENTRAL SPRINKLER CORP·Filed 1992·Granted Mar 22, 1994·42 cites·21 claims
- 2182US4926946APendent style sprinkler with coverCENTRAL SPRINKLER CORP·Filed 1988·Granted May 22, 1990·60 cites·20 claims
- 2277US4732216AQuick release mechanism for sprinkler headCENTRAL SPRINKLER CORP·Filed 1986·Granted Mar 22, 1988·51 cites·12 claims
- 2377US4508175AFlush pendant or flush horizontal automatic sprinkler headCENTRAL SPRINKLER CORP·Filed 1983·Granted Apr 2, 1985·45 cites·12 claims
- 2476US5097906AConcealed automatic sprinklerCENTRAL SPRINKLER CORP·Filed 1990·Granted Mar 24, 1992·59 cites·13 claims
- 2576US4491182AAutomatic sprinklerCENTRAL SPRINKLER CORP·Filed 1983·Granted Jan 1, 1985·44 cites·6 claims
- 2675US5494113ASprinklers with shape-memory alloy actuatorsCENTRAL SPRINKLER CORP·Filed 1994·Granted Feb 27, 1996·56 cites·31 claims
- 2774US5083616ACeiling sprinklerCENTRAL SPRINKLER CORP·Filed 1990·Granted Jan 28, 1992·55 cites·20 claims
- 2871US5080176ADirectly mounted pendent-style sprinklers and coversCENTRAL SPRINKLER CORP·Filed 1990·Granted Jan 14, 1992·52 cites·22 claims
- 2970US4739835AQuick response glass bulb sprinklerCENTRAL SPRINKLER CORP·Filed 1986·Granted Apr 26, 1988·40 cites·19 claims
- 3067US4117887ASprinkler head flange assemblyCENTRAL SPRINKLER CORP·Filed 1977·Granted Oct 3, 1978·19 cites·8 claims
- 3166US4609047AQuick release mechanism for sprinkler headCENTRAL SPRINKLER CORP·Filed 1984·Granted Sep 2, 1986·28 cites·8 claims
- 3265USD318096SCeiling cover for pendent style sprinklersCENTRAL SPRINKLER CORP·Filed 1988·Granted Jul 9, 1991·10 cites·1 claims
- 3363US4630682ARapid response sprinkler headCENTRAL SPRINKLER CORP·Filed 1985·Granted Dec 23, 1986·31 cites·10 claims
- 3461US4619327ASprinkler headCENTRAL SPRINKLER CORP·Filed 1985·Granted Oct 28, 1986·28 cites·2 claims
- 3559US4991656AQuick release valve for sprinkler headCENTRAL SPRINKLER CORP·Filed 1990·Granted Feb 12, 1991·28 cites·13 claims
- 3655US4830115AValve assembly for sprinkler headCENTRAL SPRINKLER CORP·Filed 1986·Granted May 16, 1989·16 cites·6 claims
- 3753US2008303269A1Ferrous pipe couplings and prelubricated coupling gasketsCENTRAL SPRINKLER CORP·Filed 2008·Application pending·0 cites
- 3850US4618001ASprinkler head with electrical sensorCENTRAL SPRINKLER CORP·Filed 1985·Granted Oct 21, 1986·21 cites·4 claims
- 3947US5520207ARemotely monitored tamper bar for a backflow preventerCENTRAL SPRINKLER CORP·Filed 1994·Granted May 28, 1996·14 cites·8 claims
- 4040US4648459ALow preload self-sealing quick release valve for sprinkler headCENTRAL SPRINKLER CORP·Filed 1985·Granted Mar 10, 1987·9 cites·9 claims
- 4140US2003062718A1Ferrous pipe couplings and prelubricated coupling gasketsCENTRAL SPRINKLER CORP·Filed 2001·Application pending·0 cites
- 4239US4957169ASprinkler valve assemblyCENTRAL SPRINKLER CORP·Filed 1990·Granted Sep 18, 1990·8 cites·13 claims
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