Motor manufacturing method and motor manufacturing system
US-12451773-B2 · Oct 21, 2025 · US
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the commutators being made of carbon
the commutators being made of carbon · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/045 |
| Official title | {the commutators being made of carbon} |
| Display label | the commutators being made of carbon |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2019 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor manufacturing method and motor manufacturing system
US-2022360148-A1 · Nov 10, 2022 · US
Commutator, motor using same and method of manufacturing the commutator
US-10205293-B2 · Feb 12, 2019 · US
Commutator, motor using same and method of manufacturing the commutator
US-2017271832-A1 · Sep 21, 2017 · US
Carbon Product
US-2015284251-A1 · Oct 8, 2015 · US
Carbon commutator and a method for production thereof
US-9024504-B2 · May 5, 2015 · US