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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →