Two-wire dimmer with improved zero-cross detention
US-2025056688-A1 · Feb 13, 2025 · US
by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)}
by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B39/08 |
| Official title | by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)} |
| Display label | by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)} |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-wire dimmer with improved zero-cross detention
US-12177946-B2 · Dec 24, 2024 · US
Two-wire dimmer with improved zero-cross detention
US-2023120814-A1 · Apr 20, 2023 · US
Two-wire dimmer with improved zero-cross detention
US-11540365-B2 · Dec 27, 2022 · US
Ceiling fan with variable blade pitch and variable speed control
US-11434915-B2 · Sep 6, 2022 · US
Two-wire dimmer with improved zero-cross detention
US-2021282238-A1 · Sep 9, 2021 · US
Two-wire dimmer with improved zero-cross detection
US-10966304-B2 · Mar 30, 2021 · US
Multi-Channel Dimmer
US-2020367343-A1 · Nov 19, 2020 · US
Two-wire dimmer with improved zero-cross detection
US-2020205270-A1 · Jun 25, 2020 · US
Two-wire dimmer with improved zero-cross detection
US-10602593-B2 · Mar 24, 2020 · US
System and method with timing self-configuration
US-10312042-B2 · Jun 4, 2019 · US
Actuator assembly for a wallbox dimmer
US-10055043-B2 · Aug 21, 2018 · US
Method and apparatus for detecting presence of dimmer and controlling power delivered to solid state lighting load
US-10015860-B2 · Jul 3, 2018 · US
Power efficient line synchronized dimmer
US-9974152-B2 · May 15, 2018 · US
Bleeder circuit for a dimmer of a light non-linear load
US-9912246-B2 · Mar 6, 2018 · US
Two-wire neutralless digital dimmer for leading-edge dimmable lamp driver and a method of operation thereof
US-9906153-B2 · Feb 27, 2018 · US
Two-wire dimmer with improved zero-cross detention
US-2017223812-A1 · Aug 3, 2017 · US
Power efficient line synchronized dimmer
US-2017208674-A1 · Jul 20, 2017 · US
Power efficient line synchronized dimmer
US-9681526-B2 · Jun 13, 2017 · US
Two-wire dimmer with improved zero-cross detention
US-9674933-B2 · Jun 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B39/08?
- CPC H05B39/08 is the Cooperative Patent Classification code for “by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)}.”
- How many patents are filed under CPC H05B39/08 (by shifting phase of trigger voltage applied to gas-filled controlling tubes {also in controlled semiconductor devices (in converters H02M5/00; with regulation G05F1/44)})?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC H05B39/08 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).