Inventor · disambiguated record
John Evans
Also filed as: EVANS JOHN · EVANS JOHN P · EVANS JOHN PAUL · EVANS JR JOHN
28 granted patents·5 pending applications·373 citations·filing 1974–2025
96Inventor score
Top patents by PatentIndex Score
33 records- 0194US4086513APlural gun cathode ray tube having parallel plates adjacent grid aperturesRCA CORP·Filed 1975·Granted Apr 25, 1978·42 cites·6 claims
- 0290US6542358B1Retractable platform with wireless electrical interface3COM CORP·Filed 2000·Granted Apr 1, 2003·53 cites·26 claims
- 0387US7200680B2Method, apparatus and system for providing multimedia messages to incompatible terminalsERICSSON INC·Filed 2002·Granted Apr 3, 2007·64 cites·6 claims
- 0487US3952224AIn-line electron guns having consecutive grids with aligned vertical, substantially elliptical aperturesRCA CORP·Filed 1974·Granted Apr 20, 1976·23 cites·3 claims
- 0586US9641681B2Methods and systems for determining conversation qualityTALKIQ INC·Filed 2016·Granted May 2, 2017·26 cites·30 claims
- 0684US8444847B1Low voltage electrolysis of waterEVANS CRAIG·Filed 2010·Granted May 21, 2013·6 cites·21 claims
- 0773US8517272B1Method to differentiate aiming from active decodingEVANS JOHN P·Filed 2012·Granted Aug 27, 2013·5 cites·20 claims
- 0872US6573729B1Systems and methods for impedance synthesis3COM CORP·Filed 2000·Granted Jun 3, 2003·10 cites·15 claims
- 0969US12512686B2Systems and methods for alerting users to device low battery statesZEBRA TECH CORP·Filed 2022·Granted Dec 30, 2025·0 cites·20 claims
- 1067US6307880B1Method and system for externally incorporating automatic switching between voice and data communications3COM CORP·Filed 1997·Granted Oct 23, 2001·45 cites·17 claims
- 1166US11210924B1Systems and methods for alerting users to device low battery statesZEBRA TECH CORP·Filed 2021·Granted Dec 28, 2021·0 cites·20 claims
- 1262US5394789AManually operable device for metering air through a valve system for drawing into, retaining and evacuating material from a chamberFiled 1993·Granted Mar 7, 1995·30 cites·7 claims
- 1360US6859051B1Systems and methods for impedance synthesis3COM CORP·Filed 2003·Granted Feb 22, 2005·4 cites·10 claims
- 1457US7660408B1Attenuation and termination circuit using impedance synthesis3COM CORP·Filed 2000·Granted Feb 9, 2010·2 cites·13 claims
- 1554US8472614B2Attenuation and termination circuit using impedance synthesisPOULIS SPIRO·Filed 2009·Granted Jun 25, 2013·0 cites·12 claims
- 1654US6219732B1Apparatus and method for wireless communication between a host and a selectively removable module electrically connected to the host3COM CORP·Filed 1997·Granted Apr 17, 2001·26 cites·8 claims
- 1751US2025277719A1Systems and methods for determining natural frequencies of rotating machineryPURDUE RESEARCH FOUNDATION·Filed 2025·Application pending·0 cites
- 1849US12483781B2Power manager to support less-than-nominal conditions in a machine vision systemZEBRA TECH CORP·Filed 2021·Granted Nov 25, 2025·0 cites·20 claims
- 1949US6283773B1Media jack with external fuse access3COM CORP·Filed 1999·Granted Sep 4, 2001·12 cites·14 claims
- 2048US2024412616A1Systems and devices for maintaining a communicable relationship between an indicia reader and a hostZEBRA TECH CORP·Filed 2023·Application pending·0 cites
- 2145US6700387B1Systems and methods for impedance synthesis3COM CORP·Filed 2003·Granted Mar 2, 2004·0 cites·8 claims
- 2244US9176592B2System for, and method of, configuring electro-optical reader as a keyboard device having a selected keyboard layoutSYMBOL TECHNOLOGIES INC·Filed 2012·Granted Nov 3, 2015·0 cites·20 claims
- 2344US8876005B2Arrangement for and method of managing a soft keyboard on a mobile terminal connected with a handheld electro-optical reader via a bluetooth® paired connectionSYMBOL TECHNOLOGIES INC·Filed 2012·Granted Nov 4, 2014·0 cites·6 claims
- 2443US2020270588A1Glucosyl transferase polypeptides and methods of useSYNGENTA PARTICIPATIONS AG·Filed 2018·Application pending·0 cites
- 2541US2003125063A1Peer-to-peer communications within a mobile networkFiled 2002·Application pending·0 cites
- 2633US6567472B1System and method for terminating a line by reflecting a scaled impedance3COM CORP·Filed 1999·Granted May 20, 2003·6 cites·26 claims
- 2733US6377667B1Telephone line-assist powered apparatus with programmable hold current3COM CORP·Filed 1999·Granted Apr 23, 2002·7 cites·17 claims
- 2832US6654461B1Synthesized telephone line ring signal impedance termination3COM CORP·Filed 1999·Granted Nov 25, 2003·2 cites·19 claims
- 2932US6338077B1Transfer function implementation using digital impedance synthesis3COM CORP·Filed 1999·Granted Jan 8, 2002·2 cites·21 claims
- 3031US6697485B1Data signal attenuator and systems and methods for using same3COM CORP·Filed 1998·Granted Feb 24, 2004·1 cites·17 claims
- 3131US5485779ADevice for selectively pressurizing or evacuating a chamber with an oscillating air source by metering air through a valve system and a device for drawing into, retaining and evacuating material from a chamberFiled 1995·Granted Jan 23, 1996·5 cites·24 claims
- 3231US2020354198A1Lifting System, Beam and Method For Containers, Trailer for Containers, Connector For ContainersBLOK CONTAINER SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 3325US6456665B1Partial modification of a nominal impedance using digital impedance synthesis3COM CORP·Filed 1999·Granted Sep 24, 2002·2 cites·25 claims
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