Assignee
AMTECH SYSTEMS LLC
US·45 granted patents·12 pending applications·151 citations·filing 2009–2025
Top patents by PatentIndex Score
57 records- 0198US10121289B1Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2015·Granted Nov 6, 2018·32 cites·8 claims
- 0296US10134210B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2017·Granted Nov 20, 2018·14 cites·20 claims
- 0394US10769392B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2019·Granted Sep 8, 2020·12 cites·19 claims
- 0493US11341345B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2020·Granted May 24, 2022·3 cites·19 claims
- 0593US11257303B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2021·Granted Feb 22, 2022·2 cites·15 claims
- 0693US9361492B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2015·Granted Jun 7, 2016·11 cites·25 claims
- 0792US12056566B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2023·Granted Aug 6, 2024·1 cites·20 claims
- 0892US8344886B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2009·Granted Jan 1, 2013·18 cites·21 claims
- 0992US2026087284A1Vehicle tracking system using smartphone as active transponderAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1091US9785804B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2016·Granted Oct 10, 2017·8 cites·13 claims
- 1191US2026025645A1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 1290US10896552B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2019·Granted Jan 19, 2021·3 cites·16 claims
- 1390US9313559B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2013·Granted Apr 12, 2016·8 cites·14 claims
- 1488US11663427B1Vehicle tracking system using transpondersAMTECH SYSTEMS LLC·Filed 2022·Granted May 30, 2023·1 cites·20 claims
- 1588US9633238B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2014·Granted Apr 25, 2017·9 cites·2 claims
- 1687US10708745B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2018·Granted Jul 7, 2020·3 cites·18 claims
- 1787US10083329B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2017·Granted Sep 25, 2018·4 cites·20 claims
- 1886US12483870B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2024·Granted Nov 25, 2025·0 cites·20 claims
- 1985US10467440B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2018·Granted Nov 5, 2019·3 cites·20 claims
- 2085US9262656B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2015·Granted Feb 16, 2016·4 cites·34 claims
- 2184US2024406698A1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2284US2025174051A1Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2024·Application pending·0 cites
- 2382US12505322B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2023·Granted Dec 23, 2025·0 cites·30 claims
- 2482US2026004275A1Vehicle Tracking System for Congestion Pricing Using TranspondersAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2582US2026004274A1Vehicle Tracking System for Congestion Pricing Using TranspondersAMTECH SYSTEMS LLC·Filed 2025·Application pending·0 cites
- 2681US10733393B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2019·Granted Aug 4, 2020·1 cites·20 claims
- 2780US12437285B1Vehicle tracking system for congestion pricing using transpondersAMTECH SYSTEMS LLC·Filed 2020·Granted Oct 7, 2025·1 cites·20 claims
- 2880US9305404B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2014·Granted Apr 5, 2016·3 cites·6 claims
- 2979US10210752B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2017·Granted Feb 19, 2019·2 cites·9 claims
- 3077US11887406B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2022·Granted Jan 30, 2024·0 cites·20 claims
- 3176US12069552B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2022·Granted Aug 20, 2024·0 cites·18 claims
- 3276US9558383B2Intermodulation mitigation technique in an RFID systemAMTECH SYSTEMS LLC·Filed 2014·Granted Jan 31, 2017·2 cites·8 claims
- 3374US11288464B2Multi-protocol RFID systemAMTECH SYSTEMS LLC·Filed 2020·Granted Mar 29, 2022·0 cites·20 claims
- 3474US10275949B2RFID vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2016·Granted Apr 30, 2019·1 cites·6 claims
- 3573US12015969B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2021·Granted Jun 18, 2024·0 cites·26 claims
- 3673US9081088B1System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2013·Granted Jul 14, 2015·3 cites·5 claims
- 3772US2022415165A1Rfid system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2022·Application pending·0 cites
- 3871US11039284B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2016·Granted Jun 15, 2021·1 cites·8 claims
- 3971US9316728B1System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2015·Granted Apr 19, 2016·1 cites·1 claims
- 4070US11323865B2Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2020·Granted May 3, 2022·0 cites·14 claims
- 4169US10607044B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2019·Granted Mar 31, 2020·0 cites·14 claims
- 4267US11836569B1Vehicle tracking system using smart-phone as active transponderAMTECH SYSTEMS LLC·Filed 2020·Granted Dec 5, 2023·0 cites·20 claims
- 4366US10346648B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2018·Granted Jul 9, 2019·0 cites·14 claims
- 4465US10489987B2Vehicle-based electronic toll system with interface to vehicle displayAMTECH SYSTEMS LLC·Filed 2018·Granted Nov 26, 2019·0 cites·8 claims
- 4565US2019251758A1Rfid vehicle tag with manually adjustable data fieldsAMTECH SYSTEMS LLC·Filed 2019·Application pending·0 cites
- 4663US11450203B2RFID system with time slot interleavingAMTECH SYSTEMS LLC·Filed 2019·Granted Sep 20, 2022·0 cites·18 claims
- 4762US9996715B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2017·Granted Jun 12, 2018·0 cites·14 claims
- 4860US9607190B2Automatic mode detection in a dual operating mode RFID tagAMTECH SYSTEMS LLC·Filed 2016·Granted Mar 28, 2017·0 cites·14 claims
- 4957US2014310074A1Apparatus for infrastructure-free roadway tollingAMTECH SYSTEMS LLC·Filed 2014·Application pending·0 cites
- 5056US10302756B2System and method for estimating range to an RFID tagAMTECH SYSTEMS LLC·Filed 2017·Granted May 28, 2019·0 cites·14 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when AMTECH SYSTEMS LLC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →