Enhanced phase shifter circuit to reduce RF cables
US-10148017-B2 · Dec 4, 2018 · US
using strip line filters (H01P1/2131 takes precedence)
using strip line filters (H01P1/2131 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/2135 |
| Official title | {using strip line filters (H01P1/2131 takes precedence)} |
| Display label | using strip line filters (H01P1/2131 takes precedence) |
| Total patents | 115 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 19 |
| 2017 | 17 |
| 2018 | 15 |
| 2019 | 11 |
| 2020 | 15 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multiplexer
US-2018302059-A1 · Oct 18, 2018 · US
Matching module
US-2018302057-A1 · Oct 18, 2018 · US
Double-sided circuit
US-10103703-B2 · Oct 16, 2018 · US
Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device
US-10084235-B2 · Sep 25, 2018 · US
Irreversible circuit element and module
US-10027008-B2 · Jul 17, 2018 · US
High-frequency filter and communication device module
US-2018115037-A1 · Apr 26, 2018 · US
Multi-line phase shifter of multi-band mobile communication base station antenna
US-2018108962-A1 · Apr 19, 2018 · US
Filter device having a filter connection conductor line including parallel connected conductor lines
US-9948278-B2 · Apr 17, 2018 · US
Coaxial wiring device and transmission/reception integrated splitter
US-2018069285-A1 · Mar 8, 2018 · US
Lumped-element device for quantum information processing systems
US-9893262-B2 · Feb 13, 2018 · US
Signal transmission cable and communication device module
US-9887446-B2 · Feb 6, 2018 · US
Filter
US-9876479-B2 · Jan 23, 2018 · US
Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device
US-2017338560-A1 · Nov 23, 2017 · US
Double-sided circuit
US-2017338788-A1 · Nov 23, 2017 · US
Coaxial wiring device and transmission/reception integrated splitter
US-9793590-B2 · Oct 17, 2017 · US
Irreversible circuit element and module
US-2017279175-A1 · Sep 28, 2017 · US
Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device
US-9761942-B2 · Sep 12, 2017 · US
Frequency demultiplexer
US-9755287-B2 · Sep 5, 2017 · US
Microstrip multiplexer
US-2017222293-A1 · Aug 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/2135?
- CPC H01P1/2135 is the Cooperative Patent Classification code for “using strip line filters (H01P1/2131 takes precedence).”
- How many patents are filed under CPC H01P1/2135 (using strip line filters (H01P1/2131 takes precedence))?
- Our database includes 115 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/2135 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).