Alternator with rotor lamination stack
US-2022140671-A1 · May 5, 2022 · US
having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/22 |
| Official title | having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators |
| Display label | having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators |
| Total patents | 69 |
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 | 3 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 14 |
| 2020 | 11 |
| 2021 | 12 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical phase connector for a stator of a rotary electric machine
US-2021376682-A1 · Dec 2, 2021 · US
Generator rotor and generator stator and generator and wind power plant having same and method for transporting a generator
US-11156209-B2 · Oct 26, 2021 · US
Generator arrangements and methods of generating electric power with generator arrangements
US-11152837-B2 · Oct 19, 2021 · US
Rotary electrical machine
US-11133733-B2 · Sep 28, 2021 · US
Automotive alternator rotor
US-2021296962-A1 · Sep 23, 2021 · US
Method and apparatus for cooling an rotor assembly
US-11070101-B2 · Jul 20, 2021 · US
Wet and dry cavity generator systems and methods of manufacturing the same
US-2021194305-A1 · Jun 24, 2021 · US
Rotary electric machine
US-10985638-B2 · Apr 20, 2021 · US
Rotary electrical machine
US-10958117-B2 · Mar 23, 2021 · US
Control apparatus for the rotary electrical machine
US-10958202-B2 · Mar 23, 2021 · US
Generator arrangements and methods of generating electric power with generator arrangements
US-2021075292-A1 · Mar 11, 2021 · US
Rotating electric machine
US-10910932-B2 · Feb 2, 2021 · US
Rotating electric machine
US-10848041-B2 · Nov 24, 2020 · US
Rotating electric machine
US-10840787-B2 · Nov 17, 2020 · US
Automotive rotary electric machine
US-10840752-B2 · Nov 17, 2020 · US
Rotating electric machine
US-10797543-B2 · Oct 6, 2020 · US
Electrical isolation of an alternator
US-10693340-B2 · Jun 23, 2020 · US
Rotary electrical machine drive system
US-10686354-B2 · Jun 16, 2020 · US
Generator rotor and generator stator and generator and wind power plant having same and method for transporting a generator
US-2020182222-A1 · Jun 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/22?
- CPC H02K19/22 is the Cooperative Patent Classification code for “having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators.”
- How many patents are filed under CPC H02K19/22 (having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/22 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).