Charging method for sub-module based hybrid converter
US-10483788-B2 · Nov 19, 2019 · US
Reducing harmonics or oscillations in HVDC
Reducing harmonics or oscillations in HVDC · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02J2003/365 |
| Official title | {Reducing harmonics or oscillations in HVDC} |
| Display label | Reducing harmonics or oscillations in HVDC |
| Total patents | 140 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 13 |
| 2017 | 15 |
| 2018 | 17 |
| 2019 | 17 |
| 2020 | 13 |
| 2021 | 8 |
| 2022 | 14 |
| 2023 | 9 |
| 2024 | 12 |
| 2025 | 8 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monitoring system for detecting error of harmonic filter in high voltage direct current (HVDC) system, and monitoring method thereof
US-10345361-B2 · Jul 9, 2019 · US
Electrical assembly
US-10333313-B2 · Jun 25, 2019 · US
Apparatus and method for control of direct current transmission lines
US-10236785-B2 · Mar 19, 2019 · US
Electrical assembly
US-2019081481-A1 · Mar 14, 2019 · US
Power transmission network
US-2018342871-A1 · Nov 29, 2018 · US
Relay protection method and apparatus against LC parallel circuit detuning faults
US-10128650-B2 · Nov 13, 2018 · US
Supply system to a set of loads connected in parallel to a direct current supply bus
US-2018278155-A1 · Sep 27, 2018 · US
LCC and MMC series-connected HVDC system with DC fault ride-through capability
US-10084387-B2 · Sep 25, 2018 · US
Voltage source converter and control thereof
US-2018241321-A1 · Aug 23, 2018 · US
Arrangement, method and computer program product for limiting circulating currents
US-10050551-B1 · Aug 14, 2018 · US
Arrangement, method and computer program product for limiting circulating currents
US-2018219491-A1 · Aug 2, 2018 · US
Multiple-tuned filter design method for HVDC system
US-9973003-B2 · May 15, 2018 · US
Start-up of hvdc networks
US-2018115164-A1 · Apr 26, 2018 · US
Control circuit
US-9954358-B2 · Apr 24, 2018 · US
Method for designing multiple tuned filter in high voltage direct current system
US-9953119-B2 · Apr 24, 2018 · US
Powder conditioner with reduced capacitor voltage ripples
US-9929668-B1 · Mar 27, 2018 · US
Start-up of hvdc networks
US-2018076619-A1 · Mar 15, 2018 · US
Control of voltage source converters
US-2018069469-A1 · Mar 8, 2018 · US
Direct current (DC) voltage control method and apparatus
US-9876393-B2 · Jan 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02J2003/365?
- CPC H02J2003/365 is the Cooperative Patent Classification code for “Reducing harmonics or oscillations in HVDC.”
- How many patents are filed under CPC H02J2003/365 (Reducing harmonics or oscillations in HVDC)?
- Our database includes 140 publications tagged with this CPC code.
- Is patent activity under CPC H02J2003/365 growing?
- Publication counts under this code: 12 in 2024 vs 8 in 2025 (latest complete years).