Adaptive start-up control circuit
US-2024146183-A1 · May 2, 2024 · US
Snubber circuits
Snubber circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02M1/34 |
| Official title | Snubber circuits |
| Display label | Snubber circuits |
| Total patents | 836 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 35 |
| 2016 | 62 |
| 2017 | 65 |
| 2018 | 87 |
| 2019 | 114 |
| 2020 | 104 |
| 2021 | 88 |
| 2022 | 97 |
| 2023 | 61 |
| 2024 | 65 |
| 2025 | 47 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Snubber circuit
US-9531252-B2 · Dec 27, 2016 · US
Circuit for clamping current in a charge pump
US-2016359408-A1 · Dec 8, 2016 · US
Backflow preventing device, power conversion apparatus, and refrigerating and air-conditioning apparatus
US-2016329846-A1 · Nov 10, 2016 · US
Discharge device
US-2016329733-A1 · Nov 10, 2016 · US
Integrated power electronics assembly module
US-2016278211-A1 · Sep 22, 2016 · US
Snubber circuit
US-2016276923-A1 · Sep 22, 2016 · US
DC-to-DC CONVERTER
US-2016268895-A1 · Sep 15, 2016 · US
Drive unit and transport machine
US-2016233811-A1 · Aug 11, 2016 · US
Power converter for engine generator
US-9407185-B2 · Aug 2, 2016 · US
Snubber circuit for a hand held power tool
US-9400517-B2 · Jul 26, 2016 · US
Power conversion device
US-2016211741-A1 · Jul 21, 2016 · US
Switching power supply device
US-9397575-B2 · Jul 19, 2016 · US
Snubber circuit
US-9385586-B2 · Jul 5, 2016 · US
Circuit for clamping current in a charge pump
US-9360878-B2 · Jun 7, 2016 · US
Power switching device, three phase bridge inverter, and method of operating a power switching device
US-9356515-B2 · May 31, 2016 · US
Integrated snubber in a single poly mosfet
US-2016118380-A1 · Apr 28, 2016 · US
DC/DC converter circuit of semiconductor device having a first transistor of a normally-off type and a second transistor of a normally-on type
US-9324851-B2 · Apr 26, 2016 · US
Snubber circuit
US-2016094118-A1 · Mar 31, 2016 · US
Power conversion apparatus
US-9281740-B2 · Mar 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02M1/34?
- CPC H02M1/34 is the Cooperative Patent Classification code for “Snubber circuits.”
- How many patents are filed under CPC H02M1/34 (Snubber circuits)?
- Our database includes 836 publications tagged with this CPC code.
- Is patent activity under CPC H02M1/34 growing?
- Publication counts under this code: 65 in 2024 vs 47 in 2025 (latest complete years).