Assignee
LK PRODUCTS OY
FI·62 granted patents·1 pending application·3,941 citations·filing 1988–2005
Top patents by PatentIndex Score
63 records- 0194US6185434B1Antenna filtering arrangement for a dual mode radio communication deviceLK PRODUCTS OY·Filed 1997·Granted Feb 6, 2001·139 cites·6 claims
- 0294US5521561AArrangement for separating transmission and receptionLK PRODUCTS OY·Filed 1995·Granted May 28, 1996·111 cites·15 claims
- 0394US5103197ACeramic band-pass filterLK PRODUCTS OY·Filed 1990·Granted Apr 7, 1992·67 cites·37 claims
- 0493US7081857B2Arrangement for connecting additional antenna to radio deviceLK PRODUCTS OY·Filed 2005·Granted Jul 25, 2006·70 cites·9 claims
- 0593US5903820ARadio communications transceiver with integrated filter, antenna switch, directional coupler and active componentsLK PRODUCTS OY·Filed 1996·Granted May 11, 1999·193 cites·13 claims
- 0693US5543764AFilter having an electromagnetically tunable transmission zeroLK PRODUCTS OY·Filed 1994·Granted Aug 6, 1996·63 cites·13 claims
- 0792US5990848ACombined structure of a helical antenna and a dielectric plateLK PRODUCTS OY·Filed 1997·Granted Nov 23, 1999·205 cites·11 claims
- 0892USRE34898ECeramic band-pass filterLK PRODUCTS OY·Filed 1993·Granted Apr 11, 1995·53 cites·37 claims
- 0992US5307036ACeramic band-stop filterLK PRODUCTS OY·Filed 1992·Granted Apr 26, 1994·64 cites·14 claims
- 1092US5298873AAdjustable resonator arrangementLK PRODUCTS OY·Filed 1992·Granted Mar 29, 1994·68 cites·29 claims
- 1191US7136019B2Antenna for flat radio deviceLK PRODUCTS OY·Filed 2003·Granted Nov 14, 2006·92 cites·16 claims
- 1291US5734305AStepwise switched filterLK PRODUCTS OY·Filed 1996·Granted Mar 31, 1998·67 cites·15 claims
- 1391US5541560ASelectable bandstop/bandpass filter with switches selecting the resonator couplingLK PRODUCTS OY·Filed 1994·Granted Jul 30, 1996·57 cites·13 claims
- 1490US7352326B2Multiband planar antennaLK PRODUCTS OY·Filed 2004·Granted Apr 1, 2008·86 cites·9 claims
- 1590US7126546B2Arrangement for integrating a radio phone structureLK PRODUCTS OY·Filed 2003·Granted Oct 24, 2006·60 cites·15 claims
- 1690US7099690B2Adjustable multi-band antennaLK PRODUCTS OY·Filed 2004·Granted Aug 29, 2006·66 cites·9 claims
- 1790US6031496ACombination antennaLK PRODUCTS OY·Filed 1997·Granted Feb 29, 2000·117 cites·12 claims
- 1890US6023608AIntegrated filter constructionLK PRODUCTS OY·Filed 1997·Granted Feb 8, 2000·59 cites·10 claims
- 1989US5742259AResilient antenna structure and a method to manufacture itLK PRODUCTS OY·Filed 1996·Granted Apr 21, 1998·63 cites·17 claims
- 2089US5506554ADielectric filter with inductive coupling electrodes formed on an adjacent insulating layerLK PRODUCTS OY·Filed 1994·Granted Apr 9, 1996·53 cites·10 claims
- 2189US5432489AFilter with strip linesLK PRODUCTS OY·Filed 1994·Granted Jul 11, 1995·56 cites·15 claims
- 2289US5408206AResonator structure having a strip and groove serving as transmission line resonatorsLK PRODUCTS OY·Filed 1993·Granted Apr 18, 1995·52 cites·16 claims
- 2389US5349315ADielectric filterLK PRODUCTS OY·Filed 1993·Granted Sep 20, 1994·51 cites·10 claims
- 2489US5304968ATemperature compensated resonatorLK PRODUCTS OY·Filed 1992·Granted Apr 19, 1994·62 cites·7 claims
- 2589US5302924ATemperature compensated dielectric filterLK PRODUCTS OY·Filed 1992·Granted Apr 12, 1994·47 cites·10 claims
- 2689US5239279ACeramic duplex filterLK PRODUCTS OY·Filed 1992·Granted Aug 24, 1993·52 cites·17 claims
- 2788US6078231AHigh frequency filter with a dielectric board element to provide electromagnetic couplingsLK PRODUCTS OY·Filed 1998·Granted Jun 20, 2000·61 cites·16 claims
- 2888US5717368AVaractor tuned helical resonator for use with duplex filterLK PRODUCTS OY·Filed 1996·Granted Feb 10, 1998·60 cites·11 claims
- 2988US5675301ADielectric filter having resonators aligned to effect zeros of the frequency responseLK PRODUCTS OY·Filed 1995·Granted Oct 7, 1997·54 cites·2 claims
- 3088US5594395ADiode tuned resonator filterLK PRODUCTS OY·Filed 1994·Granted Jan 14, 1997·44 cites·14 claims
- 3188US5467065AFilter having resonators coupled by a saw filter and a duplex filter formed therefromLK PRODUCTS OY·Filed 1994·Granted Nov 14, 1995·47 cites·6 claims
- 3288US5351023AHelix resonatorLK PRODUCTS OY·Filed 1993·Granted Sep 27, 1994·50 cites·14 claims
- 3388US5319328ADielectric filterLK PRODUCTS OY·Filed 1992·Granted Jun 7, 1994·44 cites·10 claims
- 3487US6016130ADual-frequency antennaLK PRODUCTS OY·Filed 1997·Granted Jan 18, 2000·90 cites·35 claims
- 3587US5047739ATransmission line resonatorLK PRODUCTS OY·Filed 1988·Granted Sep 10, 1991·48 cites·6 claims
- 3687US4977383AResonator structureLK PRODUCTS OY·Filed 1989·Granted Dec 11, 1990·44 cites·10 claims
- 3786US7340286B2Cover structure for a radio deviceLK PRODUCTS OY·Filed 2004·Granted Mar 4, 2008·57 cites·6 claims
- 3886US5731749ATransmission line resonator filter with variable slot coupling and link coupling #10LK PRODUCTS OY·Filed 1996·Granted Mar 24, 1998·45 cites·6 claims
- 3986US5585771AHelical resonator filter including short circuit stub tuningLK PRODUCTS OY·Filed 1994·Granted Dec 17, 1996·43 cites·10 claims
- 4085US5793269AStepwise regulated filter having a multiple-step switchLK PRODUCTS OY·Filed 1996·Granted Aug 11, 1998·43 cites·20 claims
- 4185US5689221ARadio frequency filter comprising helix resonatorsLK PRODUCTS OY·Filed 1995·Granted Nov 18, 1997·46 cites·8 claims
- 4285US5570071ASupporting of a helix resonatorLK PRODUCTS OY·Filed 1992·Granted Oct 29, 1996·42 cites·16 claims
- 4385US5418508AHelix resonator filterLK PRODUCTS OY·Filed 1993·Granted May 23, 1995·44 cites·16 claims
- 4485US5278528AAir insulated high frequency filter with resonating rodsLK PRODUCTS OY·Filed 1992·Granted Jan 11, 1994·58 cites·11 claims
- 4584US6140973ASimple dual-frequency antennaLK PRODUCTS OY·Filed 1998·Granted Oct 31, 2000·81 cites·11 claims
- 4684US6037848AElectrically regulated filter having a selectable stop bandLK PRODUCTS OY·Filed 1997·Granted Mar 14, 2000·64 cites·13 claims
- 4784US5815048ASwitchable duplex filterLK PRODUCTS OY·Filed 1996·Granted Sep 29, 1998·52 cites·13 claims
- 4884US5739735AFilter with improved stop/pass ratioLK PRODUCTS OY·Filed 1996·Granted Apr 14, 1998·48 cites·16 claims
- 4984US5627502AResonator filter with variable tuningLK PRODUCTS OY·Filed 1995·Granted May 6, 1997·48 cites·11 claims
- 5084US5550519ADielectric resonator having a frequency tuning element extending into the resonator holeLK PRODUCTS OY·Filed 1995·Granted Aug 27, 1996·60 cites·9 claims
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