Inventor · disambiguated record

Douglas N. Datema

Also filed as: DATEMA DOUGLAS N

2 granted patents·16 citations·filing 1991–2021

51Inventor score

Technology areasB66B E04G

Files withMONTGOMERY ELECTRIC COMPANY1 OTIS ELEVATOR CO1

Top patents by PatentIndex Score

2 records

0151US11905721B2Protective platform assembly for use during elevator installationOTIS ELEVATOR CO·Filed 2021·Granted Feb 20, 2024·0 cites·25 claims
0245US5161668AGuide mechanism for passenger conveyorsMONTGOMERY ELECTRIC COMPANY·Filed 1991·Granted Nov 10, 1992·16 cites·22 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →