Inventor · disambiguated record
David R. Polak
Also filed as: POLAK DAVID R
8 granted patents·2 pending applications·14 citations·filing 2008–2020
78Inventor score
Top patents by PatentIndex Score
10 records- 0180US10773929B2Sheave for elevator systemOTIS ELEVATOR CO·Filed 2015·Granted Sep 15, 2020·2 cites·8 claims
- 0276US9815667B2Coated sheaveYU XIAOMEI·Filed 2012·Granted Nov 14, 2017·1 cites·20 claims
- 0373US8167540B2System for reducing compressor noiseSCHLINKER ROBERT HANS·Filed 2008·Granted May 1, 2012·9 cites·21 claims
- 0471US10246300B2Elevator virtual aerodynamic shroudOTIS ELEVATOR CO·Filed 2016·Granted Apr 2, 2019·1 cites·20 claims
- 0570US11643301B2System and method for monitoring sheave bearing conditionOTIS ELEVATOR CO·Filed 2019·Granted May 9, 2023·0 cites·20 claims
- 0656US12479691B2Elevator systemOTIS ELEVATOR CO·Filed 2020·Granted Nov 25, 2025·0 cites·14 claims
- 0751US10336581B2System and method for reducing belt noisePOLAK DAVID R·Filed 2011·Granted Jul 2, 2019·1 cites·19 claims
- 0845US2021024326A1Methods and systems for elevator crowd predictionOTIS ELEVATOR CO·Filed 2020·Application pending·0 cites
- 0944US9630806B2Sheave for an elevator systemWESSON JOHN P·Filed 2012·Granted Apr 25, 2017·0 cites·17 claims
- 1037US2017261058A1Elevator safety spring and method of manufacturingOTIS ELEVATOR CO·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →