Stator assembly
US-11211836-B2 · Dec 28, 2021 · US
Structural association of synchronous generators with exciting machines
Structural association of synchronous generators with exciting machines · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/38 |
| Official title | Structural association of synchronous generators with exciting machines |
| Display label | Structural association of synchronous generators with exciting machines |
| Total patents | 95 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 14 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 11 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric generator
US-2021316878-A1 · Oct 14, 2021 · US
Rotary electric machines and methods of cooling rotary electric machines
US-11038403-B2 · Jun 15, 2021 · US
Generator main field connection
US-2021036572-A1 · Feb 4, 2021 · US
Jet engine assembly and method for generating electricity
US-10830085-B2 · Nov 10, 2020 · US
Printed circuit board based exciter
US-10826418-B2 · Nov 3, 2020 · US
Synchronous machine with common motor/generator exciter stage
US-10784757-B2 · Sep 22, 2020 · US
Rotary electric machines and methods of cooling rotary electric machines
US-2020295625-A1 · Sep 17, 2020 · US
Brushless synchronous power generation apparatus
US-10734931-B2 · Aug 4, 2020 · US
Field winding type motor
US-10574124-B2 · Feb 25, 2020 · US
Rotor assembly for an electric machine having a coolant passage
US-10554088-B2 · Feb 4, 2020 · US
Stator assembly
US-2020036241-A1 · Jan 30, 2020 · US
Rotor assembly for an electric machine with thermal management features
US-10523079-B2 · Dec 31, 2019 · US
Hollow rotor shaft for rotating electrical machine, associated rotor and method
US-2019288578-A1 · Sep 19, 2019 · US
Brushless synchronous power generation apparatus
US-2019245466-A1 · Aug 8, 2019 · US
Dual Axis Alternator
US-2019211746-A1 · Jul 11, 2019 · US
Printed circuit board based exciter
US-2019190418-A1 · Jun 20, 2019 · US
Synchronous machine with common motor/generator exciter stage
US-10305356-B2 · May 28, 2019 · US
Dual axis alternator
US-10273876-B2 · Apr 30, 2019 · US
Aircraft starting and generating system
US-10260471-B2 · Apr 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/38?
- CPC H02K19/38 is the Cooperative Patent Classification code for “Structural association of synchronous generators with exciting machines.”
- How many patents are filed under CPC H02K19/38 (Structural association of synchronous generators with exciting machines)?
- Our database includes 95 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/38 growing?
- Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).