Inventor · disambiguated record
David M. Hughes
Also filed as: HUGHES DAVID M
13 granted patents·7 pending applications·247 citations·filing 1982–2016
92Inventor score
Top patents by PatentIndex Score
20 records- 0197US5200583AAdaptive elevator security systemOTIS ELEVATOR CO·Filed 1991·Granted Apr 6, 1993·100 cites·5 claims
- 0284US10011460B2Elevator dynamic displays for messaging and communicationOTIS ELEVATOR CO·Filed 2016·Granted Jul 3, 2018·2 cites·15 claims
- 0383US8172043B2Elevator cross-dispatching system with inter group relative system response (IRSR) dispatchingHUGHES DAVID M·Filed 2006·Granted May 8, 2012·18 cites·20 claims
- 0482US10227209B2Orchestration of an occupant evacuation operation using destination entry fixturesOTIS ELEVATOR CO·Filed 2016·Granted Mar 12, 2019·2 cites·13 claims
- 0580US5487451ASystem and method for determining the availability of an elevator car for response to hall callsOTIS ELEVATOR CO·Filed 1994·Granted Jan 30, 1996·34 cites·9 claims
- 0673US9108824B2Remote access of an elevator control system with multiple subsystemsHUGHES DAVID M·Filed 2009·Granted Aug 18, 2015·12 cites·18 claims
- 0772US5357064AElevator hall call cross-cancellation deviceOTIS ELEVATOR CO·Filed 1992·Granted Oct 18, 1994·31 cites·2 claims
- 0870US4463231APush-push switchCTS CORP·Filed 1982·Granted Jul 31, 1984·16 cites·14 claims
- 0952US10294075B2Re-dispatching unoccupied elevator car for occupant evacuation operationOTIS ELEVATOR CO·Filed 2016·Granted May 21, 2019·0 cites·20 claims
- 1051US10647024B2Wet press concrete slab manufacturingGCP APPLIED TECH INC·Filed 2015·Granted May 12, 2020·0 cites·13 claims
- 1145US5644110AElevator service for dual lobby during up-peakOTIS ELEVATOR CO·Filed 1994·Granted Jul 1, 1997·11 cites·1 claims
- 1243US5272287AElevator car and riser transferOTIS ELEVATOR CO·Filed 1992·Granted Dec 21, 1993·16 cites·4 claims
- 1343US2018057312A1Building occupant evacuationOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1443US2018086598A1Group coordination of elevators within a building for occupant evacuationOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1543US2018093859A1Occupant evacuation operation by allocating a variable number of cars to floors within an evacuation zoneOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1643US2018093861A1Enhanced elevator status information provisions for fire alarm systemsOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1743US2018093858A1Method for occupant evacuation operation utilizing multi-compartment elevatorsOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1843US2018093854A1Occupant evacuation operation displayOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 1943US2018093857A1Optimized occupant evacuation operation by utilizing remaining capacity for multi-compartment elevatorsOTIS ELEVATOR CO·Filed 2016·Application pending·0 cites
- 2031US5923484AMethod of changing a thermomagnetic tape duplicator to an anhysteretic type of tape duplicatorFUTURE PRODUCTIONS INC·Filed 1996·Granted Jul 13, 1999·5 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →