Inventor · disambiguated record
Douglas E. Logan
Also filed as: LOGAN DOUGLAS E
7 granted patents·120 citations·filing 1999–2020
84Inventor score
Top patents by PatentIndex Score
7 records- 0191US7117981B2Load bearing member for use in an elevator system having external markings for indicating a condition of the assemblyOTIS ELEVATOR CO·Filed 2001·Granted Oct 10, 2006·42 cites·31 claims
- 0290US6419208B1Elevator sheave for use with flat ropesOTIS ELEVATOR CO·Filed 1999·Granted Jul 16, 2002·47 cites·18 claims
- 0383US6742769B2Elevator sheave for use with flat ropesOTIS ELEVATOR CO·Filed 2002·Granted Jun 1, 2004·23 cites·5 claims
- 0474US11718505B2Elevator system suspension member terminationOTIS ELEVATOR CO·Filed 2020·Granted Aug 8, 2023·0 cites·14 claims
- 0565US10850944B2Elevator system suspension member terminationOTIS ELEVATOR CO·Filed 2017·Granted Dec 1, 2020·0 cites·7 claims
- 0656US8449349B2Elevator load bearing member having a jacket with at least one rough exterior surfaceTHOMPSON MARK S·Filed 2004·Granted May 28, 2013·8 cites·7 claims
- 0747US8734203B2Elevator load bearing member having a jacket with at least one rough exterior surfaceOTIS ELEVATOR CO·Filed 2013·Granted May 27, 2014·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →