Assignee
OTIS ELEVATOR CO
US·2,367 granted patents·666 pending applications·31,695 citations·filing 1971–2025
Top patents by PatentIndex Score
3,033 records- 0199US6435315B1Absolute position reference system for an elevatorOTIS ELEVATOR CO·Filed 2000·Granted Aug 20, 2002·119 cites·31 claims
- 0298US11072515B2Automated elevator maintenance mode initiationOTIS ELEVATOR CO·Filed 2018·Granted Jul 27, 2021·9 cites·24 claims
- 0398US10513416B2Depth sensor based passenger sensing for passenger conveyance door controlOTIS ELEVATOR CO·Filed 2016·Granted Dec 24, 2019·11 cites·26 claims
- 0498US10381968B2Converter pulse width modulation strategies for three phase regenerative drivesOTIS ELEVATOR CO·Filed 2017·Granted Aug 13, 2019·30 cites·22 claims
- 0598US10351392B1Escalator and moving walkway system with safety sensorOTIS ELEVATOR CO·Filed 2018·Granted Jul 16, 2019·9 cites·20 claims
- 0698US6386324B1Elevator traction sheaveOTIS ELEVATOR CO·Filed 2000·Granted May 14, 2002·63 cites·26 claims
- 0798US6364061B2Tension member for an elevatorOTIS ELEVATOR CO·Filed 2000·Granted Apr 2, 2002·57 cites·18 claims
- 0898US5035302A"Artificial Intelligence" based learning system predicting "Peak-Period" times for elevator dispatchingOTIS ELEVATOR CO·Filed 1990·Granted Jul 30, 1991·103 cites·64 claims
- 0997US10683190B2Intelligent building system for implementing actions based on user device detectionOTIS ELEVATOR CO·Filed 2015·Granted Jun 16, 2020·11 cites·13 claims
- 1097US10640329B2Reassignment of elevators for mobile device usersOTIS ELEVATOR CO·Filed 2017·Granted May 5, 2020·8 cites·12 claims
- 1197US10597255B2Elevator route selection systemOTIS ELEVATOR CO·Filed 2015·Granted Mar 24, 2020·9 cites·11 claims
- 1297US10584014B2Robust electrical safety actuation moduleOTIS ELEVATOR CO·Filed 2015·Granted Mar 10, 2020·9 cites·9 claims
- 1397US10112802B2Elevator service person collision protection systemOTIS ELEVATOR CO·Filed 2017·Granted Oct 30, 2018·10 cites·18 claims
- 1497US9985566B2Dual three-phase electrical machine and drive with negligible common-mode noiseOTIS ELEVATOR CO·Filed 2016·Granted May 29, 2018·16 cites·10 claims
- 1597US9906183B1Parallel interleaved 2-level or 3-level regenerative drivesOTIS ELEVATOR CO·Filed 2017·Granted Feb 27, 2018·31 cites·28 claims
- 1697US8020672B2Video aided system for elevator controlOTIS ELEVATOR CO·Filed 2006·Granted Sep 20, 2011·102 cites·22 claims
- 1797US7353915B2Automatic destination entry system with override capabilityOTIS ELEVATOR CO·Filed 2004·Granted Apr 8, 2008·104 cites·11 claims
- 1897US6707374B1Elevator access securityOTIS ELEVATOR CO·Filed 1999·Granted Mar 16, 2004·124 cites·14 claims
- 1997US6123176ARope tension monitoring assembly and methodOTIS ELEVATOR CO·Filed 1997·Granted Sep 26, 2000·127 cites·29 claims
- 2097US5551532AMethod for transmitting messages in an elevator communications systemOTIS ELEVATOR CO·Filed 1994·Granted Sep 3, 1996·121 cites·5 claims
- 2197US5410149AOptical obstruction detector with light barriers having planes of light for controlling automatic doorsOTIS ELEVATOR CO·Filed 1993·Granted Apr 25, 1995·74 cites·14 claims
- 2297US5274203A"Smart" position transducer system for elevatorsOTIS ELEVATOR CO·Filed 1993·Granted Dec 28, 1993·86 cites·6 claims
- 2397US5200583AAdaptive elevator security systemOTIS ELEVATOR CO·Filed 1991·Granted Apr 6, 1993·100 cites·5 claims
- 2497US5070290AAlternating current motor control system with emergency control responsive to failure of power supplyOTIS ELEVATOR CO·Filed 1988·Granted Dec 3, 1991·127 cites·20 claims
- 2597US4838384AQueue based elevator dispatching system using peak period traffic predictionOTIS ELEVATOR CO·Filed 1988·Granted Jun 13, 1989·107 cites·1 claims
- 2697US4622538ARemote monitoring system state machine and methodOTIS ELEVATOR CO·Filed 1984·Granted Nov 11, 1986·102 cites·15 claims
- 2796US11767193B2Elevator call registration when a car is fullOTIS ELEVATOR CO·Filed 2019·Granted Sep 26, 2023·6 cites·9 claims
- 2896US11591188B2Elevator system roping arrangementOTIS ELEVATOR CO·Filed 2020·Granted Feb 28, 2023·4 cites·8 claims
- 2996US11232312B2Traffic list generation for passenger conveyanceOTIS ELEVATOR CO·Filed 2016·Granted Jan 25, 2022·13 cites·9 claims
- 3096US10822199B2Sensor fusion of acceleration sensor and air pressure sensor information to estimate elevator floor level and positionOTIS ELEVATOR CO·Filed 2019·Granted Nov 3, 2020·8 cites·20 claims
- 3196US10343874B2Wireless device installation interfaceOTIS ELEVATOR CO·Filed 2016·Granted Jul 9, 2019·11 cites·19 claims
- 3296US10207899B2Flexible machine frameOTIS ELEVATOR CO·Filed 2018·Granted Feb 19, 2019·7 cites·14 claims
- 3396US10035681B2Belt-driven people conveyorOTIS ELEVATOR CO·Filed 2017·Granted Jul 31, 2018·7 cites·15 claims
- 3496US9988238B2Elevator dispatch using facial recognitionOTIS ELEVATOR CO·Filed 2013·Granted Jun 5, 2018·24 cites·15 claims
- 3596US9896309B2Object detector, and method for controlling a passenger conveyor system using the sameOTIS ELEVATOR CO·Filed 2015·Granted Feb 20, 2018·8 cites·26 claims
- 3696US8011479B2Electrical signal application strategies for monitoring a condition of an elevator load bearing memberOTIS ELEVATOR CO·Filed 2004·Granted Sep 6, 2011·48 cites·21 claims
- 3796US7849974B2Method of dispatching an elevator carOTIS ELEVATOR CO·Filed 2005·Granted Dec 14, 2010·42 cites·11 claims
- 3896US7328775B2Destination entry system with delayed elevator car assignmentOTIS ELEVATOR CO·Filed 2004·Granted Feb 12, 2008·62 cites·20 claims
- 3996US7124495B2Method for making an electric motorOTIS ELEVATOR CO·Filed 2005·Granted Oct 24, 2006·40 cites·11 claims
- 4096US6952068B2Fabricated components of transverse flux electric motorsOTIS ELEVATOR CO·Filed 2000·Granted Oct 4, 2005·59 cites·20 claims
- 4196US6739433B1Tension member for an elevatorOTIS ELEVATOR CO·Filed 1998·Granted May 25, 2004·73 cites·28 claims
- 4296US6467585B1Wireless safety chain for elevator systemOTIS ELEVATOR CO·Filed 2001·Granted Oct 22, 2002·85 cites·9 claims
- 4396US6446759B1Door coupler and latch system for elevator car and landing doorsOTIS ELEVATOR CO·Filed 2001·Granted Sep 10, 2002·61 cites·6 claims
- 4496US6295799B1Tension member for an elevatorOTIS ELEVATOR CO·Filed 1999·Granted Oct 2, 2001·114 cites·16 claims
- 4596US6167991B1Method and apparatus for detecting position of an elevator doorOTIS ELEVATOR CO·Filed 2000·Granted Jan 2, 2001·76 cites·20 claims
- 4696US5984051ARemote elevator call requests with descriptor tagsOTIS ELEVATOR CO·Filed 1998·Granted Nov 16, 1999·158 cites·8 claims
- 4796US5952626AIndividual elevator call changingOTIS ELEVATOR CO·Filed 1998·Granted Sep 14, 1999·107 cites·16 claims
- 4896US4794248ADetection device having energy transmitters located at vertically spaced apart points along movable doorsOTIS ELEVATOR CO·Filed 1988·Granted Dec 27, 1988·96 cites·2 claims
- 4995US12286330B2Elevator connector with angled interfaceOTIS ELEVATOR CO·Filed 2024·Granted Apr 29, 2025·4 cites·17 claims
- 5095US12234126B2Connection device and connection method for detection of a tension member for an elevatorOTIS ELEVATOR CO·Filed 2023·Granted Feb 25, 2025·2 cites·14 claims
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