Assignee
PORTA SYSTEMS CORP
US·139 granted patents·3 pending applications·3,553 citations·filing 1971–2009
Top patents by PatentIndex Score
142 records- 0199US5100221AOptical fiber cable distribution frame and supportPORTA SYSTEMS CORP·Filed 1990·Granted Mar 31, 1992·476 cites·19 claims
- 0298US5142606AOptical fiber cable distribution frame and supportPORTA SYSTEMS CORP·Filed 1991·Granted Aug 25, 1992·378 cites·20 claims
- 0397US5469526AOptical fiber support for printed circuit boardsPORTA SYSTEMS CORP·Filed 1994·Granted Nov 21, 1995·222 cites·10 claims
- 0497US5160273AConnector block assemblyPORTA SYSTEMS CORP·Filed 1991·Granted Nov 3, 1992·145 cites·19 claims
- 0594US5142598AFiber optic connector having snap ring adjustment meansPORTA SYSTEMS CORP·Filed 1991·Granted Aug 25, 1992·309 cites·3 claims
- 0692USD305641SAC surge protectorPORTA SYSTEMS CORP·Filed 1987·Granted Jan 23, 1990·35 cites·1 claims
- 0792US4496804AWire contact retention means for rotary switchesPORTA SYSTEMS CORP·Filed 1983·Granted Jan 29, 1985·56 cites·2 claims
- 0890US5239609AMeans for routing buffer tube type fiber optical cablePORTA SYSTEMS CORP·Filed 1992·Granted Aug 24, 1993·98 cites·3 claims
- 0989US5170452AFiber optic plug connector and adapter thereforPORTA SYSTEMS CORP·Filed 1991·Granted Dec 8, 1992·94 cites·3 claims
- 1086US4470102AWall mounted distribution frame for telephone subscriber locationsPORTA SYSTEMS CORP·Filed 1982·Granted Sep 4, 1984·38 cites·3 claims
- 1186US4012096ATelephone connector block apparatusPORTA SYSTEMS CORP·Filed 1975·Granted Mar 15, 1977·27 cites·22 claims
- 1284US6421220B2Low capacitance surge protector for high speed data transmissionPORTA SYSTEMS CORP·Filed 2000·Granted Jul 16, 2002·56 cites·1 claims
- 1384US5119459AOptical fiber storage and distribution cabinetPORTA SYSTEMS CORP·Filed 1991·Granted Jun 2, 1992·83 cites·31 claims
- 1484US4204095ATelephone main distributing framePORTA SYSTEMS CORP·Filed 1978·Granted May 20, 1980·29 cites·3 claims
- 1579US5205762AHigh frequency patch cord data connectorPORTA SYSTEMS CORP·Filed 1991·Granted Apr 27, 1993·41 cites·29 claims
- 1679US5146525AFiber optic plug connector having optical center adjustment meansPORTA SYSTEMS CORP·Filed 1991·Granted Sep 8, 1992·58 cites·2 claims
- 1778US5323479APackage for fiber optic cablePORTA SYSTEMS CORP·Filed 1993·Granted Jun 21, 1994·47 cites·7 claims
- 1878USD318262SGrounded multiple outletPORTA SYSTEMS CORP·Filed 1988·Granted Jul 16, 1991·17 cites·1 claims
- 1978USD317112SCombined telephone block support and wire guidePORTA SYSTEMS CORP·Filed 1989·Granted May 28, 1991·22 cites·1 claims
- 2076US4581493ALine condition reporting systemPORTA SYSTEMS CORP·Filed 1983·Granted Apr 8, 1986·33 cites·5 claims
- 2175US4740168ALocking device for telephone subscriber plugsPORTA SYSTEMS CORP·Filed 1987·Granted Apr 26, 1988·40 cites·5 claims
- 2275US4737985ADigital system connect framePORTA SYSTEMS CORP·Filed 1986·Granted Apr 12, 1988·43 cites·2 claims
- 2374USD276606SHorizontal type telephone protector blockPORTA SYSTEMS CORP·Filed 1982·Granted Dec 4, 1984·16 cites·1 claims
- 2473US4176257ATelephone connector blockPORTA SYSTEMS CORP·Filed 1978·Granted Nov 27, 1979·13 cites·3 claims
- 2573US4117273ASingle sided protector frame for telephone circuitsPORTA SYSTEMS CORP·Filed 1977·Granted Sep 26, 1978·14 cites·2 claims
- 2673US3969594AAutomated telephony testing and polling apparatus and systemPORTA SYSTEMS CORP·Filed 1974·Granted Jul 13, 1976·25 cites·10 claims
- 2772US3947730ATelephone line surge protecting devicePORTA SYSTEMS CORP·Filed 1974·Granted Mar 30, 1976·17 cites·1 claims
- 2871US5297970AConnector block and connector block assembly with offset contactsPORTA SYSTEMS CORP·Filed 1993·Granted Mar 29, 1994·32 cites·5 claims
- 2970US5328380AElectrical connectorPORTA SYSTEMS CORP·Filed 1993·Granted Jul 12, 1994·31 cites·26 claims
- 3070US4576428AProtective boot for telephone subscriber jacksPORTA SYSTEMS CORP·Filed 1984·Granted Mar 18, 1986·25 cites·4 claims
- 3169US4567639AWire installation and cutting toolPORTA SYSTEMS CORP·Filed 1984·Granted Feb 4, 1986·22 cites·2 claims
- 3267US5459804AFiberoptic couplers having spacer fibers that have no optical coresPORTA SYSTEMS CORP·Filed 1993·Granted Oct 17, 1995·29 cites·39 claims
- 3367US4575169ATelephone building entrance terminalPORTA SYSTEMS CORP·Filed 1985·Granted Mar 11, 1986·31 cites·1 claims
- 3466US6994582B1Connector modulePORTA SYSTEMS CORP·Filed 2003·Granted Feb 7, 2006·19 cites·19 claims
- 3566US5553179AVaried insertion loss fiber optic coupling and method of making samePORTA SYSTEMS CORP·Filed 1994·Granted Sep 3, 1996·29 cites·30 claims
- 3666US4944003ASolid state telephone protector modulePORTA SYSTEMS CORP·Filed 1989·Granted Jul 24, 1990·23 cites·3 claims
- 3766USD287963STelephone building entrance terminalPORTA SYSTEMS CORP·Filed 1984·Granted Jan 27, 1987·9 cites·1 claims
- 3864US6195245B1Low capacitance surge protector for high speed data transmissionPORTA SYSTEMS CORP·Filed 1999·Granted Feb 27, 2001·43 cites·11 claims
- 3964US5222179AMeans for routing ribbon type fiber optic cablePORTA SYSTEMS CORP·Filed 1992·Granted Jun 22, 1993·27 cites·1 claims
- 4063USD249789STelephone connector blockPORTA SYSTEMS CORP·Filed 1977·Granted Oct 3, 1978·7 cites·1 claims
- 4162US4882748AHomologated protector modules for telephone connector blocksPORTA SYSTEMS CORP·Filed 1988·Granted Nov 21, 1989·21 cites·6 claims
- 4262US4649236ADigital system connect framePORTA SYSTEMS CORP·Filed 1985·Granted Mar 10, 1987·25 cites·2 claims
- 4361US5233675AFiber optic adapter with replaceable attenuation meansPORTA SYSTEMS CORP·Filed 1992·Granted Aug 3, 1993·24 cites·5 claims
- 4461US4758921AGrounded surge protection unit for telephone subscriber circuitsPORTA SYSTEMS CORP·Filed 1987·Granted Jul 19, 1988·24 cites·3 claims
- 4561US4313039ATelephone modular distributing framePORTA SYSTEMS CORP·Filed 1980·Granted Jan 26, 1982·12 cites·2 claims
- 4660US4811169ASingle sided DSX framePORTA SYSTEMS CORP·Filed 1986·Granted Mar 7, 1989·22 cites·3 claims
- 4760US4649456AThree element gas tube protector modulePORTA SYSTEMS CORP·Filed 1986·Granted Mar 10, 1987·20 cites·3 claims
- 4860US4004263AProtector module for telephone systemsPORTA SYSTEMS CORP·Filed 1975·Granted Jan 18, 1977·12 cites·4 claims
- 4959US6384330B1Modular distributing frame for supporting telephone connector blocksPORTA SYSTEMS CORP·Filed 2000·Granted May 7, 2002·6 cites·20 claims
- 5059US4759057ATelephone modular distributing framePORTA SYSTEMS CORP·Filed 1987·Granted Jul 19, 1988·23 cites·2 claims
Showing the top 50 of 142 patent records by PatentIndex Score.
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