Inventor · disambiguated record
Leonard Cech
Also filed as: CECH LEONARD · CECH LEONARD S · CECH LEONARD STEVEN
48 granted patents·8 pending applications·1,007 citations·filing 1978–2024
98Inventor score
Files withJOYSON SAFETY SYSTEMS ACQUISITION LLC18AUTOMOTIVE SYSTEMS LAB12TK HOLDINGS INC9CECH LEONARD4LUBRIZOL CORP4
Top patents by PatentIndex Score
56 records- 0197US6056079AAutomotive seat weight sensing systemAUTOMOTIVE SYSTEMS LAB·Filed 1998·Granted May 2, 2000·201 cites·15 claims
- 0295US11565626B2Systems and methods for child presence detection with driver warning alerts and bypass optionJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Granted Jan 31, 2023·3 cites·18 claims
- 0394US4230586AAqueous well-drilling fluidsLUBRIZOL CORP·Filed 1978·Granted Oct 28, 1980·67 cites·19 claims
- 0493US11654862B2Detection and monitoring of occupant seat beltJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Granted May 23, 2023·4 cites·20 claims
- 0593US6203060B1System and method for sensing vehicle door edge movementAUTOMOTIVE SYSTEMS LAB·Filed 2000·Granted Mar 20, 2001·75 cites·16 claims
- 0691US10611335B2Detection and monitoring of occupant seat beltJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2018·Granted Apr 7, 2020·9 cites·15 claims
- 0791US7772839B2Eddy current magnetic crash sensorTK HOLDINGS INC·Filed 2007·Granted Aug 10, 2010·29 cites·20 claims
- 0890US10940828B2Detection and monitoring of occupant seat beltJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2020·Granted Mar 9, 2021·3 cites·20 claims
- 0989US5957491ASeat weight sensor having fluid filled bladderAUTOMOTIVE SYSTEMS LAB·Filed 1997·Granted Sep 28, 1999·86 cites·38 claims
- 1088US12024118B2Detection and monitoring of occupant seat beltJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2023·Granted Jul 2, 2024·1 cites·20 claims
- 1188US8841929B2Sensor system for steering wheel for vehicleBENNETT JEFFREY·Filed 2012·Granted Sep 23, 2014·26 cites·35 claims
- 1288US7463987B2Magnetic sensing system and methodTAKATA HOLDINGS INC·Filed 2006·Granted Dec 9, 2008·28 cites·21 claims
- 1387US5407471ACorrosion inhibition compositionLUBRIZOL CORP·Filed 1994·Granted Apr 18, 1995·52 cites·40 claims
- 1485US10252640B2Seatbelt and child seat anchor based occupancy detection systemJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2017·Granted Apr 9, 2019·6 cites·17 claims
- 1584US8424904B2Steering wheel system with audio inputCECH LEONARD·Filed 2010·Granted Apr 23, 2013·8 cites·18 claims
- 1683US8180585B2Magnetic crash sensorCECH LEONARD S·Filed 2009·Granted May 15, 2012·17 cites·22 claims
- 1783US7388370B2Magnetic crash sensorAUTOMOTIVE SYSTEMS LAB SYSTEMS·Filed 2006·Granted Jun 17, 2008·25 cites·60 claims
- 1883US4264363ACorrosion inhibiting coating compositionLUBRIZOL CORP·Filed 1979·Granted Apr 28, 1981·31 cites·9 claims
- 1980US11031012B2System and method of correlating mouth images to input commandsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2020·Granted Jun 8, 2021·1 cites·18 claims
- 2080US7839143B2Eddy current magnetic crash sensorTK HOLDINGS INC·Filed 2007·Granted Nov 23, 2010·12 cites·20 claims
- 2180US7514917B2Magnetic crash sensorAUTOMOTIVE SYSTEMS LAB·Filed 2006·Granted Apr 7, 2009·14 cites·4 claims
- 2279US7209844B2Magnetic crash sensorAUTOMOTIVE SYSTEMS LAB·Filed 2004·Granted Apr 24, 2007·30 cites·12 claims
- 2378US12313536B2Systems and methods of ambient gas sensing in a vehicleJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2023·Granted May 27, 2025·0 cites·9 claims
- 2478US10600302B2Seatbelt and child seat anchor based occupancy detection systemTK HOLDINGS INC·Filed 2017·Granted Mar 24, 2020·4 cites·13 claims
- 2578US7839142B2Magnetic crash sensorTK HOLDINGS INC·Filed 2007·Granted Nov 23, 2010·11 cites·25 claims
- 2678US5338347ACorrosion inhibition compositionLUBRIZOL CORP·Filed 1992·Granted Aug 16, 1994·34 cites·40 claims
- 2777US7212895B2Magnetic sensorAUTOMOTIVE SYSTEMS LAB·Filed 2004·Granted May 1, 2007·24 cites·20 claims
- 2877US6039345ASystem and method for sensing vehicle door edge movementAUTOMOTIVE SYSTEMS LAB·Filed 1998·Granted Mar 21, 2000·46 cites·34 claims
- 2976US7113874B2Magnetic crash sensing methodAUTOMOTIVE SYSTEMS LAB·Filed 2004·Granted Sep 26, 2006·26 cites·29 claims
- 3076US6674024B2Seat weight sensorAUTOMOTIVE SYSTEMS LAB·Filed 2001·Granted Jan 6, 2004·35 cites·19 claims
- 3176US2025033596A1Detection and Monitoring of Occupant Seat BeltJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2024·Application pending·0 cites
- 3275US6045155AVehicle seat sensor having self-maintaining air bladderAUTOMOTIVE SYSTEMS LAB·Filed 1998·Granted Apr 4, 2000·48 cites·21 claims
- 3374US11042285B2System and method for controlling a human machine interface (HMI) deviceTK HOLDINGS INC·Filed 2015·Granted Jun 22, 2021·3 cites·4 claims
- 3474US10730465B23D time of flight active reflecting sensing systems and methodsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2017·Granted Aug 4, 2020·3 cites·20 claims
- 3571US12237124B2Solid state high power battery disrupterJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2023·Granted Feb 25, 2025·0 cites·4 claims
- 3671US11692933B2Systems and methods of ambient gas sensing in a vehicleJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Granted Jul 4, 2023·0 cites·15 claims
- 3768US7698036B2Vehicle rollover detection systemAUTOMOTIVE SYSTEMS LAB·Filed 2003·Granted Apr 13, 2010·17 cites·23 claims
- 3862US11776776B2High power battery disrupterJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Granted Oct 3, 2023·0 cites·10 claims
- 3960US11447085B23D time of flight active reflecting sensing systems and methodsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2020·Granted Sep 20, 2022·0 cites·19 claims
- 4057US10748542B2System and method of correlating mouth images to input commandsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2018·Granted Aug 18, 2020·0 cites·16 claims
- 4157US8296012B2Vehicle communication system and methodCECH LEONARD·Filed 2008·Granted Oct 23, 2012·2 cites·9 claims
- 4256US9302630B2System and method for receiving audible input in a vehicleCECH LEONARD·Filed 2008·Granted Apr 5, 2016·1 cites·17 claims
- 4353US10800288B2System and method for detecting movement of an occupant seated in a vehicleTK HOLDINGS INC·Filed 2017·Granted Oct 13, 2020·0 cites·19 claims
- 4452US12077117B2Systems and methods for child presence detection with active child protection interlocks and safety warningsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Granted Sep 3, 2024·0 cites·10 claims
- 4550US6286861B1Seat weight sensorAUTOMOTIVE SYSTEMS LAB·Filed 1999·Granted Sep 11, 2001·21 cites·81 claims
- 4650US2023210416A1System and method of touch sensing using physiological or biochemical sensorsJOYSON SAFETY SYSTEMS ACQUISITION LLC·Filed 2021·Application pending·0 cites
- 4747US8282163B2Seating system for mass transit vehicleCECH LEONARD S·Filed 2010·Granted Oct 9, 2012·2 cites·29 claims
- 4846US9520061B2Vehicle driver messaging system and methodCECH LEONARD·Filed 2008·Granted Dec 13, 2016·2 cites·22 claims
- 4945US2008109177A1Magnetic crash sensorCECH LEONARD S·Filed 2007·Application pending·0 cites
- 5045US2010013622A1Adaptive light seatbelt buckleTK HOLDINGS INC·Filed 2008·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →