Signal processing circuits and devices
US-12113498-B2 · Oct 8, 2024 · US
Notch or bandstop filters
Notch or bandstop filters · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03H2011/0488 |
| Official title | {Notch or bandstop filters} |
| Display label | Notch or bandstop filters |
| Total patents | 84 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 8 |
| 2019 | 13 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 10 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Josphson band pass to band stop filter
US-11831291-B2 · Nov 28, 2023 · US
Signal processing circuits and methods
US-2023218236-A1 · Jul 13, 2023 · US
Signal processing circuits and devices
US-2023216486-A1 · Jul 6, 2023 · US
Reconfigurable wideband high-frequency circuits using non-reciprocal circulators
US-11677128-B2 · Jun 13, 2023 · US
Josphson band pass to band stop filter
US-2023179175-A1 · Jun 8, 2023 · US
Transmission-line-based resonant quadrature clock distribution with harmonic filtering
US-2023091086-A1 · Mar 23, 2023 · US
Notch filter with successive windowed integrations, related band-pass filtering device, frequency detection system and processing method
US-11575399-B2 · Feb 7, 2023 · US
Reconfigurable wideband high-frequency filter using non-reciprocal circulator
US-11456515-B2 · Sep 27, 2022 · US
Filter and method with multiplication operation approximation capability
US-11387822-B2 · Jul 12, 2022 · US
Compact transformer-based notch filter
US-2022216856-A1 · Jul 7, 2022 · US
Dual mode notch filter
US-2022200576-A1 · Jun 23, 2022 · US
Radio frequency front end module including common filter
US-2022182084-A1 · Jun 9, 2022 · US
Radio frequency front end module including supplemental filter
US-2022182085-A1 · Jun 9, 2022 · US
Notch filter with successive windowed integrations, related band-pass filtering device, frequency detection system and processing method
US-2022123771-A1 · Apr 21, 2022 · US
Filter and Method with Multiplication Operation Approximation Capability
US-2022085799-A1 · Mar 17, 2022 · US
Calibration method, corresponding circuit and apparatus
US-2022021373-A1 · Jan 20, 2022 · US
Reconfigurable wideband high-frequency filter using non-reciprocal circulator
US-2021384599-A1 · Dec 9, 2021 · US
Reconfigurable wideband high-frequency circuits using non-reciprocal circulators
US-2021384598-A1 · Dec 9, 2021 · US
N-path bandstop filter with extended spurious-free upper passband
US-2021218382-A1 · Jul 15, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03H2011/0488?
- CPC H03H2011/0488 is the Cooperative Patent Classification code for “Notch or bandstop filters.”
- How many patents are filed under CPC H03H2011/0488 (Notch or bandstop filters)?
- Our database includes 84 publications tagged with this CPC code.
- Is patent activity under CPC H03H2011/0488 growing?
- Publication counts under this code: 10 in 2024 vs 10 in 2025 (latest complete years).