Inventor · disambiguated record
Edward Piedra
Also filed as: PIEDRA EDWARD · PIEDRA EDWARD D · PIEDRA EDWARD DAVID
17 granted patents·3 pending applications·94 citations·filing 2000–2025
90Inventor score
Top patents by PatentIndex Score
20 records- 0190US8127894B2Elevator motor drive tolerant of an irregular power sourceAGIRMAN ISMAIL·Filed 2005·Granted Mar 6, 2012·26 cites·20 claims
- 0281US10252879B2Brake operation management in elevatorsOTIS ELEVATOR CO·Filed 2014·Granted Apr 9, 2019·6 cites·14 claims
- 0374US6483271B1Motor drive parametersOTIS ELEVATOR CO·Filed 2000·Granted Nov 19, 2002·24 cites·13 claims
- 0473US11235948B2Dynamic compensation control for elevator systemsOTIS ELEVATOR CO·Filed 2018·Granted Feb 1, 2022·1 cites·17 claims
- 0573US6459599B1Determining phase of AC mains in PWM controlled converters without voltage sensorsOTIS ELEVATOR CO·Filed 2001·Granted Oct 1, 2002·30 cites·4 claims
- 0669US10538412B2Brake operation management in elevatorsOTIS ELEVATOR CO·Filed 2019·Granted Jan 21, 2020·0 cites·15 claims
- 0763US10822197B2Elevator run profile modification for smooth rescueOTIS ELEVATOR CO·Filed 2017·Granted Nov 3, 2020·0 cites·6 claims
- 0862US2018016114A1Advanced smooth rescue operationOTIS ELEVATOR CO·Filed 2017·Application pending·0 cites
- 0961US12434943B2Beam climber active brake health monitoring systemOTIS ELEVATOR CO·Filed 2020·Granted Oct 7, 2025·0 cites·16 claims
- 1060US9862568B2Elevator run profile modification for smooth rescueOTIS ELEVATOR CO·Filed 2016·Granted Jan 9, 2018·0 cites·6 claims
- 1160US9809418B2Advanced smooth rescue operationOTIS ELEVATOR CO·Filed 2016·Granted Nov 7, 2017·0 cites·4 claims
- 1258US8006808B2Managing an encoder malfunction in an elevator drive systemOTIS ELEVATOR CO·Filed 2006·Granted Aug 30, 2011·4 cites·23 claims
- 1356US11078049B2Elevator system including a permanent magnet (PM) synchronous motor drive systemOTIS ELEVATOR CO·Filed 2016·Granted Aug 3, 2021·0 cites·22 claims
- 1456US9957131B2Elevator speed controlOTIS ELEVATOR CO·Filed 2012·Granted May 1, 2018·1 cites·10 claims
- 1555US10513414B2System and method of maintaining performance of a systemOTIS ELEVATOR CO·Filed 2015·Granted Dec 24, 2019·0 cites·17 claims
- 1654US2022033218A1Beam climber friction monitoring systemOTIS ELEVATOR CO·Filed 2020·Application pending·0 cites
- 1749US11548758B2Health monitoring systems and methods for elevator systemsOTIS ELEVATOR CO·Filed 2018·Granted Jan 10, 2023·0 cites·14 claims
- 1848US11014778B2Rescue control and method of operating an elevator system including a permanent magnet (PM) synchronous motor drive systemOTIS ELEVATOR CO·Filed 2016·Granted May 25, 2021·0 cites·17 claims
- 1946US2025228598A1Methods for estimating an amount of cryogen in a vessel, and related devices and systemsHOLOGIC INC·Filed 2025·Application pending·0 cites
- 2042US8104584B2Elevator drive control strategyPIEDRA EDWARD·Filed 2005·Granted Jan 31, 2012·2 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →