Electric compressor
US-2025357817-A1 · Nov 20, 2025 · US
AC/DC converters or vice versa
AC/DC converters or vice versa · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K47/02 |
| Official title | AC/DC converters or vice versa |
| Display label | AC/DC converters or vice versa |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mechanical device for converting direct current into alternating current
US-12261499-B2 · Mar 25, 2025 · US
Mechanical device for converting direct current into alternating current
US-2023353065-A1 · Nov 2, 2023 · US
Charging system and method using motor driving system
US-11757298-B2 · Sep 12, 2023 · US
Apparatus, system, and method for efficiently driving visual displays via light-emitting devices
US-11482162-B2 · Oct 25, 2022 · US
Drive assembly for an electric vehicle
US-2022111924-A1 · Apr 14, 2022 · US
Rotatable attachment of an inverter control system to a transmission
US-11267512-B2 · Mar 8, 2022 · US
Drive assembly for an electric vehicle
US-11220307-B2 · Jan 11, 2022 · US
Driving system
US-11214153-B2 · Jan 4, 2022 · US
Apparatus, system, and method for efficiently driving visual displays via light-emitting devices
US-2021383745-A1 · Dec 9, 2021 · US
Charging system and method using motor driving system
US-2021336472-A1 · Oct 28, 2021 · US
Apparatus, system, and method for efficiently driving visual displays via light-emitting devices
US-11145242-B2 · Oct 12, 2021 · US
Driving system
US-11097624-B2 · Aug 24, 2021 · US
Motor control apparatus equipped with boosting unit
US-11063505-B2 · Jul 13, 2021 · US
Driving system
US-2021146788-A1 · May 20, 2021 · US
Rotatable attachment of an inverter control system to a transmission
US-2021129911-A9 · May 6, 2021 · US
Apparatus, system, and method for efficiently driving visual displays via light-emitting devices
US-2021125542-A1 · Apr 29, 2021 · US
Electrical generation from turbine engines
US-2021062672-A1 · Mar 4, 2021 · US
Electrical generation from turbine engines
US-10934880-B1 · Mar 2, 2021 · US
Rotatable attachment of an inverter control system to a transmission
US-2020156705-A1 · May 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K47/02?
- CPC H02K47/02 is the Cooperative Patent Classification code for “AC/DC converters or vice versa.”
- How many patents are filed under CPC H02K47/02 (AC/DC converters or vice versa)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC H02K47/02 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2025 (latest complete years).