Variable frequency drive self-check
US-2016329854-A9 · Nov 10, 2016 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P29/021 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 83 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 31 |
| 2016 | 36 |
| 2017 | 12 |
| 2018 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monitoring multiple subsea electric motors
US-2016245868-A1 · Aug 25, 2016 · US
Stall diagnosis apparatus for motor of air conditioning actuator
US-2016164449-A1 · Jun 9, 2016 · US
Motor drive having function for preventing secondary damage
US-2016149531-A1 · May 26, 2016 · US
Fault warning method and system thereof of electric parking brake
US-9346449-B1 · May 24, 2016 · US
Motor vehicle
US-2016142000-A1 · May 19, 2016 · US
Phase current detection system
US-2016134215-A1 · May 12, 2016 · US
Motor control device that detects overload
US-2016134227-A1 · May 12, 2016 · US
Method of diagnosing a malfunctioning DC fan motor
US-9337769-B2 · May 10, 2016 · US
Method and apparatus for monitoring the short-circuiting switching device of a three-phase motor
US-9329242-B2 · May 3, 2016 · US
Method of controlling an electric motor of a power steering system, and power steering system
US-9318986-B2 · Apr 19, 2016 · US
Motor control apparatus having function for protecting lcl filter
US-2016094179-A1 · Mar 31, 2016 · US
Integrated drive motor power interface
US-9300144-B2 · Mar 29, 2016 · US
Motor Drive Device and Motor Drive Method for EPS System
US-2016087572-A1 · Mar 24, 2016 · US
Rotating electric machine for vehicles
US-9294027-B2 · Mar 22, 2016 · US
DC electric motor control device
US-9287821-B2 · Mar 15, 2016 · US
Motor driving apparatus
US-9281767-B2 · Mar 8, 2016 · US
Motor driving system, motor driving device, multi-axis motor driving system, and multi-axis motor driving device
US-2016065099-A1 · Mar 3, 2016 · US
Variable frequency drive self-check
US-2016056750-A1 · Feb 25, 2016 · US
Control device and control method for vehicular power system
US-9270208-B2 · Feb 23, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P29/021?
- CPC H02P29/021 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H02P29/021 (Electricity)?
- Our database includes 83 publications tagged with this CPC code.
- Is patent activity under CPC H02P29/021 growing?
- Publication counts under this code: 12 in 2017 vs 4 in 2018 (latest complete years).