Rotor assembly for an electric excited synchronous motor (eesm)
US-2024429783-A1 · Dec 26, 2024 · US
with channels or ducts for cooling medium between the conductors
with channels or ducts for cooling medium between the conductors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K3/24 |
| Official title | with channels or ducts for cooling medium between the conductors |
| Display label | with channels or ducts for cooling medium between the conductors |
| Total patents | 1,312 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 50 |
| 2016 | 51 |
| 2017 | 69 |
| 2018 | 78 |
| 2019 | 97 |
| 2020 | 123 |
| 2021 | 126 |
| 2022 | 145 |
| 2023 | 165 |
| 2024 | 198 |
| 2025 | 168 |
| 2026 | 42 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stator for an electric machine, electric machine, stator cooling system, and method for cooling a stator
US-2024223027-A1 · Jul 4, 2024 · US
Motor unit
US-2024154501-A1 · May 9, 2024 · US
Stator with closed slots with a fluid injection cooling system for an electric machine and electric machine comprising said stator
US-2024063667-A1 · Feb 22, 2024 · US
Rotary electric machine
US-2016322876-A1 · Nov 3, 2016 · US
Cooling device for an electric machine and electric machine comprising a cooling device
US-2016226325-A1 · Aug 4, 2016 · US
Cooling for electrical machines
US-2016149472-A1 · May 26, 2016 · US
Cooling arrangement
US-2016149471-A1 · May 26, 2016 · US
Heat sink for a linear motor
US-2016102928-A1 · Apr 14, 2016 · US
Rotating electric machine
US-9257881-B2 · Feb 9, 2016 · US
Electrical machine with direct stator cooling
US-2015372568-A1 · Dec 24, 2015 · US
Generator cooling arrangement
US-2015372565-A1 · Dec 24, 2015 · US
Electric compressor with the stator coils coated with resin, the resin having openings exposing the coils to the interior of the housing
US-9212661-B2 · Dec 15, 2015 · US
Rotating electrical machine
US-9203273-B2 · Dec 1, 2015 · US
Cooling structure for motor
US-2015326083-A1 · Nov 12, 2015 · US
Compressed motor winding
US-2015303755-A1 · Oct 22, 2015 · US
Rotary electric machine for vehicle
US-2015303759-A1 · Oct 22, 2015 · US
Cooling system for electric generators
US-2015288252-A1 · Oct 8, 2015 · US
Electric machine with heat transfer enhancer
US-2015280526-A1 · Oct 1, 2015 · US
Stator of rotary electric machine
US-2015280503-A1 · Oct 1, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K3/24?
- CPC H02K3/24 is the Cooperative Patent Classification code for “with channels or ducts for cooling medium between the conductors.”
- How many patents are filed under CPC H02K3/24 (with channels or ducts for cooling medium between the conductors)?
- Our database includes 1,312 publications tagged with this CPC code.
- Is patent activity under CPC H02K3/24 growing?
- Publication counts under this code: 198 in 2024 vs 168 in 2025 (latest complete years).