Assignee
JOHNSON CO E F
US·77 granted patents·1 pending application·2,011 citations·filing 1974–2025
Top patents by PatentIndex Score
78 records- 0195US7221660B1System and method for multicast communications using real time transport protocol (RTP)JOHNSON CO E F·Filed 2001·Granted May 22, 2007·185 cites·37 claims
- 0294US7929475B2System and method for multicast communications using real time transport protocol (RTP)JOHNSON CO E F·Filed 2007·Granted Apr 19, 2011·53 cites·13 claims
- 0393US9800460B2Interoperability gateway for land mobile radio systemJOHNSON CO E F·Filed 2015·Granted Oct 24, 2017·12 cites·12 claims
- 0493US9763260B2System and method for dynamic channel allocatonJOHNSON CO E F·Filed 2015·Granted Sep 12, 2017·12 cites·41 claims
- 0593US9516475B2Method and system for peer-to-peer communication among sitesJOHNSON CO E F·Filed 2013·Granted Dec 6, 2016·13 cites·13 claims
- 0692US10117111B2System and method for simulating a land mobile radio systemJOHNSON CO E F·Filed 2015·Granted Oct 30, 2018·8 cites·36 claims
- 0792US9774386B2Distributed simulcast architectureJOHNSON CO E F·Filed 2014·Granted Sep 26, 2017·12 cites·22 claims
- 0892US9148421B2Method and system for encryption of messages in land mobile radio systemsJOHNSON CO E F·Filed 2014·Granted Sep 29, 2015·15 cites·33 claims
- 0992US4655534ARight angle coaxial connectorJOHNSON CO E F·Filed 1985·Granted Apr 7, 1987·181 cites·6 claims
- 1091US10004082B2System and method for dynamic channel allocationJOHNSON CO E F·Filed 2017·Granted Jun 19, 2018·8 cites·38 claims
- 1191US8355691B2Land mobile radio dispatch consoleJOHNSON CO E F·Filed 2009·Granted Jan 15, 2013·20 cites·25 claims
- 1290US10548025B2System and method for simulating a land mobile radio systemJOHNSON CO E F·Filed 2018·Granted Jan 28, 2020·7 cites·19 claims
- 1390US4786903ARemotely interrogated transponderJOHNSON CO E F·Filed 1987·Granted Nov 22, 1988·102 cites·16 claims
- 1489US10461846B2Distributed simulcast architectureJOHNSON CO E F·Filed 2017·Granted Oct 29, 2019·7 cites·17 claims
- 1588US10212026B2Interoperability gateway for land mobile radio systemJOHNSON CO E F·Filed 2017·Granted Feb 19, 2019·8 cites·14 claims
- 1688US5235232AAdjustable-output electrical energy source using light-emitting polymerJOHNSON CO E F·Filed 1990·Granted Aug 10, 1993·110 cites·7 claims
- 1788US5008579ALight emitting polymer electrical energy sourceJOHNSON CO E F·Filed 1989·Granted Apr 16, 1991·71 cites·43 claims
- 1887US4645288APrinted circuit board coaxial connector interfaceJOHNSON CO E F·Filed 1984·Granted Feb 24, 1987·74 cites·5 claims
- 1986US10880000B2Distributed simulcast architectureJOHNSON CO E F·Filed 2019·Granted Dec 29, 2020·3 cites·15 claims
- 2085US5124610ATritiated light emitting polymer electrical energy sourceJOHNSON CO E F·Filed 1991·Granted Jun 23, 1992·83 cites·20 claims
- 2185US4135776ASolderless coaxial cable connectorJOHNSON CO E F·Filed 1977·Granted Jan 23, 1979·64 cites·1 claims
- 2283US10791566B2System and method for dynamic channel allocationJOHNSON CO E F·Filed 2018·Granted Sep 29, 2020·3 cites·17 claims
- 2383US2025286618A1Distributed land mobile radio architecturesJOHNSON CO E F·Filed 2025·Application pending·0 cites
- 2479US9930500B2Land mobile radio dispatch consoleJOHNSON CO E F·Filed 2017·Granted Mar 27, 2018·2 cites·19 claims
- 2578US12316437B2Distributed land mobile radio architecturesJOHNSON CO E F·Filed 2024·Granted May 27, 2025·0 cites·18 claims
- 2678US9852692B2Control head with electroluminescent panel in land mobile radioJOHNSON CO E F·Filed 2016·Granted Dec 26, 2017·2 cites·29 claims
- 2778US5815799APriority system for a wide area transmission trunked communication systemJOHNSON CO E F·Filed 1996·Granted Sep 29, 1998·58 cites·16 claims
- 2877US11936466B2Distributed land mobile radio architecturesJOHNSON CO E F·Filed 2022·Granted Mar 19, 2024·0 cites·16 claims
- 2977US5689171ABattery chargerJOHNSON CO E F·Filed 1995·Granted Nov 18, 1997·89 cites·11 claims
- 3077US4761823ACommunications adaptor bracketJOHNSON CO E F·Filed 1986·Granted Aug 2, 1988·40 cites·13 claims
- 3177US4626806ARF isolation switchJOHNSON CO E F·Filed 1985·Granted Dec 2, 1986·25 cites·6 claims
- 3276US9824635B2Control head with electroluminescent panel in land mobile radioJOHNSON CO E F·Filed 2016·Granted Nov 21, 2017·2 cites·10 claims
- 3376US9641988B2Land mobile radio dispatch consoleJOHNSON CO E F·Filed 2013·Granted May 2, 2017·3 cites·16 claims
- 3476US4544577AProcess for metallization of dielectric substrate through holesJOHNSON CO E F·Filed 1984·Granted Oct 1, 1985·42 cites·16 claims
- 3574USD725085SDual push-to-talk radio microphoneJOHNSON CO E F·Filed 2014·Granted Mar 24, 2015·21 cites·1 claims
- 3674USD636361SControl head with electroluminescent panel for a land mobile radioJOHNSON CO E F·Filed 2009·Granted Apr 19, 2011·21 cites·1 claims
- 3773US10492036B2Land mobile radio dispatch consoleJOHNSON CO E F·Filed 2018·Granted Nov 26, 2019·1 cites·20 claims
- 3873US5510665AOptoelectronic active circuit elementJOHNSON CO E F·Filed 1993·Granted Apr 23, 1996·37 cites·15 claims
- 3972US4596440AElectrical probe contactJOHNSON CO E F·Filed 1984·Granted Jun 24, 1986·28 cites·2 claims
- 4070US5577269AAntenna connector for a portable radioJOHNSON CO E F·Filed 1995·Granted Nov 19, 1996·47 cites·20 claims
- 4170US5548802AMethod and apparatus for a remote network switch for a land mobile transmission trunked communication systemJOHNSON CO E F·Filed 1995·Granted Aug 20, 1996·42 cites·16 claims
- 4270US4876700AData demodulatorJOHNSON CO E F·Filed 1986·Granted Oct 24, 1989·36 cites·20 claims
- 4369USD384059SHandheld two-way radio with hinged coverJOHNSON CO E F·Filed 1995·Granted Sep 23, 1997·18 cites·1 claims
- 4469US4889961AGraphite trace electrical interconnectJOHNSON CO E F·Filed 1988·Granted Dec 26, 1989·41 cites·39 claims
- 4568US5613196AMethod and apparatus for a distributive wide area network for a land mobile transmission trunked communication systemJOHNSON CO E F·Filed 1994·Granted Mar 18, 1997·47 cites·9 claims
- 4668US4114104AChannel skip memory system for radio receiverJOHNSON CO E F·Filed 1976·Granted Sep 12, 1978·8 cites·29 claims
- 4766US11496212B2Distributed simulcast architectureJOHNSON CO E F·Filed 2020·Granted Nov 8, 2022·0 cites·22 claims
- 4865US9814014B2System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio systemJOHNSON CO E F·Filed 2014·Granted Nov 7, 2017·1 cites·4 claims
- 4963US11445336B2Land mobile radio dispatch consoleJOHNSON CO E F·Filed 2019·Granted Sep 13, 2022·0 cites·20 claims
- 5063US5678206AKeypad cover hingeJOHNSON CO E F·Filed 1995·Granted Oct 14, 1997·37 cites·17 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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