Multi-port energy storage system and control for laser power supply
US-2025330066-A1 · Oct 23, 2025 · US
Generators with two or more outputs
Generators with two or more outputs · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/34 |
| Official title | Generators with two or more outputs |
| Display label | Generators with two or more outputs |
| Total patents | 50 |
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 | 1 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 11 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid electric aircraft propulsion system and method
US-2025293627-A1 · Sep 18, 2025 · US
Hybrid electric propulsion system and method of operation
US-11757386-B2 · Sep 12, 2023 · US
Generator common core winding
US-2023170753-A1 · Jun 1, 2023 · US
Dynamo-electric machine
US-2023140831-A2 · May 4, 2023 · US
Dynamo-electric machine
US-11632021-B2 · Apr 18, 2023 · US
Dynamo-electric machine
US-2022320935-A1 · Oct 6, 2022 · US
Dual transformer turbine
US-11355934-B2 · Jun 7, 2022 · US
Hybrid electric propulsion system and method of operation
US-2022173677-A1 · Jun 2, 2022 · US
Hybrid electric propulsion system and method of operation
US-11283376-B2 · Mar 22, 2022 · US
Synchronization of generator and electric motor in a hybrid electric aircraft propulsion system
US-11233470-B2 · Jan 25, 2022 · US
Three-phase generator with adaptive taps for use in a transport climate control system
US-2021344252-A1 · Nov 4, 2021 · US
Dual transformer turbine
US-2021242685-A1 · Aug 5, 2021 · US
Hybrid electric propulsion system and method of operation
US-11025181-B2 · Jun 1, 2021 · US
Electric machine supplied at low voltage and associated multicellular power train
US-10985626-B2 · Apr 20, 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
Generator system
US-10855083-B2 · Dec 1, 2020 · US
Operation of a hybrid electric aircraft propulsion system
US-10826415-B2 · Nov 3, 2020 · US
Voltage generator and a method of making a voltage generator
US-10707741-B2 · Jul 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/34?
- CPC H02K19/34 is the Cooperative Patent Classification code for “Generators with two or more outputs.”
- How many patents are filed under CPC H02K19/34 (Generators with two or more outputs)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/34 growing?
- Publication counts under this code: 4 in 2023 vs 2 in 2025 (latest complete years).