Motor assembly for slowing down falling speed of stage light fixture on power failure, and stage light fixture
US-12308778-B2 · May 20, 2025 · US
by applying DC to the motor
by applying DC to the motor · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P3/24 |
| Official title | by applying DC to the motor |
| Display label | by applying DC to the motor |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 11 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric boiler device based on utilization of residual energy of elevator, and control method
US-2024328636-A1 · Oct 3, 2024 · US
Elevator
US-12098056-B2 · Sep 24, 2024 · US
System and method for stopping electrically powered fracturing pumps
US-12074553-B2 · Aug 27, 2024 · US
Motor assembly for slowing down falling speed of stage light fixture on power failure, and stage light fixture
US-2024113640-A1 · Apr 4, 2024 · US
Method And Apparatus For Monitoring The Condition Of A Power Semiconductor Module
US-2024088782-A1 · Mar 14, 2024 · US
Method and system for engine windmilling control
US-11745863-B2 · Sep 5, 2023 · US
Sequential electrical braking with pulsed DC injection rotor lock mechanism
US-11491879-B2 · Nov 8, 2022 · US
Electronic braking system for an irrigation machine
US-11251725-B2 · Feb 15, 2022 · US
Braking system for electromagnetic motors
US-11248673-B2 · Feb 15, 2022 · US
Shift range control device
US-11226037-B2 · Jan 18, 2022 · US
Inverter device
US-11205986-B2 · Dec 21, 2021 · US
Electric motor control device
US-11196361-B2 · Dec 7, 2021 · US
Motor arrangement
US-11133761-B2 · Sep 28, 2021 · US
Braking method for an electric motor
US-11114958-B2 · Sep 7, 2021 · US
Sequential electrical braking with pulsed dc injection rotor lock mechanism
US-2021155097-A1 · May 27, 2021 · US
Braking system for electromagnetic motors
US-11009090-B2 · May 18, 2021 · US
Braking system for electromagnetic motors
US-10995809-B2 · May 4, 2021 · US
System and method for stopping electrically powered fracturing pumps
US-2021126561-A1 · Apr 29, 2021 · US
Electric motor control device
US-2021006185-A1 · Jan 7, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P3/24?
- CPC H02P3/24 is the Cooperative Patent Classification code for “by applying DC to the motor.”
- How many patents are filed under CPC H02P3/24 (by applying DC to the motor)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC H02P3/24 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).