Optical element exchange unit
US-12463519-B2 · Nov 4, 2025 · US
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of variable reluctance type
of variable reluctance type · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K37/02 |
| Official title | of variable reluctance type |
| Display label | of variable reluctance type |
| Total patents | 20 |
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 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
An optical element exchange unit
US-2023318427-A1 · Oct 5, 2023 · US
Electrical sub-assembly
US-11005343-B2 · May 11, 2021 · US
Step actuator
US-10982741-B2 · Apr 20, 2021 · US
Control device for switched reluctance motor
US-10910980-B2 · Feb 2, 2021 · US
Stator, stepping motor, timepiece movement, timepiece, and manufacturing method of stator
US-2020225619-A1 · Jul 16, 2020 · US
Step actuator
US-2020063840-A1 · Feb 27, 2020 · US
Step actuator
US-10495198-B2 · Dec 3, 2019 · US
Motor and rotary assembly thereof
US-10424997-B2 · Sep 24, 2019 · US
Electrical sub-assembly
US-2019109517-A1 · Apr 11, 2019 · US
Phantom electric motor system with parallel coils
US-10128789-B2 · Nov 13, 2018 · US
Control device for switched reluctance motor
US-2018102722-A1 · Apr 12, 2018 · US
Reluctance motor having inductor pole coils located between adjacent ones of the salient poles of a rotor
US-9917484-B2 · Mar 13, 2018 · US
Motor and rotary assembly thereof
US-2017331355-A1 · Nov 16, 2017 · US
Step actuator
US-2017204951-A1 · Jul 20, 2017 · US
Step actuator
US-9644719-B2 · May 9, 2017 · US
Phantom Electric Motor System with Parallel Coils
US-2016105139-A1 · Apr 14, 2016 · US
Linear stepping motor having a plate cover for fixing a bearing in a structure
US-9172285-B2 · Oct 27, 2015 · US
Electrical Machines
US-2015042182-A1 · Feb 12, 2015 · US
Step actuator
US-2015020623-A1 · Jan 22, 2015 · US