Zero crossing contactor and method of operating
US-11664180-B2 · May 30, 2023 · US
for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46)
for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H47/18 |
| Official title | for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46) |
| Display label | for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46) |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 1 |
| 2017 | 8 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 12 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Switching element, switching device and method for the operation of the switching device
US-11488795-B2 · Nov 1, 2022 · US
Drive circuit
US-2022270838-A1 · Aug 25, 2022 · US
Slow-release relay circuit and train control device
US-2022246379-A1 · Aug 4, 2022 · US
Systems and methods for de-energized point-on-wave relay operations
US-11394321-B2 · Jul 19, 2022 · US
Method and apparatus for controlling a relay
US-11367579-B2 · Jun 21, 2022 · US
Relay device and control method of relay device
US-11342148-B2 · May 24, 2022 · US
Lighting Relay Panel Features for Improved Safety and Reliability
US-2022132644-A1 · Apr 28, 2022 · US
Lighting relay panel features for improved safety and reliability
US-11317499-B2 · Apr 26, 2022 · US
Relay Device and Control Method of Relay Device
US-2022102101-A1 · Mar 31, 2022 · US
Lighting relay panel features for improved safety and reliability
US-11272603-B2 · Mar 8, 2022 · US
Relay drive with power supply economizer
US-11257645-B2 · Feb 22, 2022 · US
Zero crossing contactor and method of operating
US-2022044895-A1 · Feb 10, 2022 · US
Relay with a controller
US-11189448-B2 · Nov 30, 2021 · US
Zero crossing contactor and method of operating
US-11189449-B2 · Nov 30, 2021 · US
Controlling a Controllably Conductive Device Based on Zero-Crossing Detection
US-2021327669-A1 · Oct 21, 2021 · US
Relay holding circuit and battery management system
US-11120958-B2 · Sep 14, 2021 · US
Method and apparatus for controlling a relay
US-2021233722-A1 · Jul 29, 2021 · US
Relay drive with power supply economizer
US-2021217570-A1 · Jul 15, 2021 · US
Controlling a controllably conductive device based on zero-crossing detection
US-11056304-B2 · Jul 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H47/18?
- CPC H01H47/18 is the Cooperative Patent Classification code for “for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46).”
- How many patents are filed under CPC H01H47/18 (for introducing delay in the operation of the relay (short-circuited conducting sleeves, bands or discs H01H50/46))?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC H01H47/18 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).