Millimeter-wave bandpass filter
US-2025329908-A1 · Oct 23, 2025 · US
Coplanar line filters
Coplanar line 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 | H01P1/2013 |
| Official title | {Coplanar line filters} |
| Display label | Coplanar line filters |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 11 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 2 |
| 2022 | 3 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic circuit and calculator
US-12231103-B2 · Feb 18, 2025 · US
Electrical filter structure
US-12176591-B2 · Dec 24, 2024 · US
Resonator and frequency-tunable resonator
US-2024275012-A1 · Aug 15, 2024 · US
Transmission line for radiofrequency range current
US-11923587-B2 · Mar 5, 2024 · US
Electronic circuit and calculator
US-2024022235-A1 · Jan 18, 2024 · US
A kinetic inductance parametric amplifier
US-2022321073-A1 · Oct 6, 2022 · US
Electrical filter structure
US-2022238975-A1 · Jul 28, 2022 · US
Transmission line for radiofrequency range current
US-2022158318-A1 · May 19, 2022 · US
Impedance-matched microwave quantum circuit systems
US-10740688-B2 · Aug 11, 2020 · US
Filtering unit and filter
US-10673111-B2 · Jun 2, 2020 · US
Compact broadband common-mode filter
US-10411670-B2 · Sep 10, 2019 · US
Filter
US-10312564-B2 · Jun 4, 2019 · US
Patterned ground structure filter designs with improved performance
US-10244618-B2 · Mar 26, 2019 · US
Compact broadband common-mode filter
US-2018376580-A1 · Dec 27, 2018 · US
Filter
US-2018302056-A1 · Oct 18, 2018 · US
Filtering Unit and Filter
US-2018248243-A1 · Aug 30, 2018 · US
Impedance-Matched Microwave Quantum Circuit Systems
US-2018232653-A1 · Aug 16, 2018 · US
High-frequency filter and electronic device
US-9947979-B2 · Apr 17, 2018 · US
Lumped-element device for quantum information processing systems
US-9893262-B2 · Feb 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/2013?
- CPC H01P1/2013 is the Cooperative Patent Classification code for “Coplanar line filters.”
- How many patents are filed under CPC H01P1/2013 (Coplanar line filters)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/2013 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).