Energy storage system for an elevator car, and a method and an apparatus for monitoring the energy storage system
US-12509327-B2 · Dec 30, 2025 · US
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with DC powered elevator drive
with DC powered elevator drive · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B66B1/306 |
| Official title | {with DC powered elevator drive} |
| Display label | with DC powered elevator drive |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power management in an elevator system
US-12312211-B2 · May 27, 2025 · US
Conveyance system with regenerative drive
US-2024051787-A1 · Feb 15, 2024 · US
Car to car wireless power transfer
US-11682929-B2 · Jun 20, 2023 · US
Elevator
US-11577934-B2 · Feb 14, 2023 · US
Elevator
US-11498806-B2 · Nov 15, 2022 · US
Transport conveyor drive
US-11325808-B2 · May 10, 2022 · US
Passenger conveyor
US-11167953-B2 · Nov 9, 2021 · US
Methods for identifying at least one parameter of a permanent magnet motor of an elevator, elevator drive units, and elevators
US-2021300722-A1 · Sep 30, 2021 · US
Passenger conveyor
US-2021284488-A1 · Sep 16, 2021 · US
Automatic rescue and charging system for elevator drive
US-11053096-B2 · Jul 6, 2021 · US
Drive and control for six-phase electrical machines with negligible common-mode voltage
US-10773922-B2 · Sep 15, 2020 · US
Energy storage system for an elevator car, and a method and an apparatus for monitoring the energy storage system
US-2020283264-A1 · Sep 10, 2020 · US
Car to car wireless power transfer
US-2020195060-A1 · Jun 18, 2020 · US
Power management in an elevator system
US-2020122960-A1 · Apr 23, 2020 · US
Power supply to ac loads during power source failure in elevator system
US-2020122961-A1 · Apr 23, 2020 · US
Elevator
US-2019135584-A1 · May 9, 2019 · US
Elevator
US-2019135585-A1 · May 9, 2019 · US
Transport conveyor drive
US-2019084793-A1 · Mar 21, 2019 · US
Automatic rescue and charging system for elevator drive
US-2019062111-A1 · Feb 28, 2019 · US