Hybrid electro-mechanical tuner
US-10103713-B1 · Oct 16, 2018 · US
Junction circulators, e.g. Y-circulators
Junction circulators, e.g. Y-circulators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/383 |
| Official title | Junction circulators, e.g. Y-circulators |
| Display label | Junction circulators, e.g. Y-circulators |
| Total patents | 109 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 18 |
| 2017 | 17 |
| 2018 | 15 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Radio system antenna connector arrangement
US-10075209-B2 · Sep 11, 2018 · US
Front end circuit and communication apparatus
US-10056936-B2 · Aug 21, 2018 · US
Compact six-port photonic crystal circulator
US-10036905-B2 · Jul 31, 2018 · US
Non-reciprocal circuit element
US-10033079-B2 · Jul 24, 2018 · US
Tunable duplexer having a circulator
US-10033350-B2 · Jul 24, 2018 · US
Non-reciprocal circuit device and communication apparatus using the same
US-2018138572-A1 · May 17, 2018 · US
Active quasi circulator
US-9966931-B2 · May 8, 2018 · US
Non-reciprocal circuit element, high-frequency circuit and communication device
US-2018115038-A1 · Apr 26, 2018 · US
Effective biasing active circulator with RF choke concept
US-9893401-B2 · Feb 13, 2018 · US
Josephson junction-based circulators and related systems and methods
US-2018040935-A1 · Feb 8, 2018 · US
Non-reciprocal circuit device, high-frequency circuit, and communication device
US-2018026323-A1 · Jan 25, 2018 · US
Circulator, front-end circuit, antenna circuit, and communication apparatus
US-2017373364-A1 · Dec 28, 2017 · US
Apparatus and method for interference cancellation
US-9847808-B2 · Dec 19, 2017 · US
Waveguide coaxial conversion device and transmission/reception integrated splitter
US-9831539-B2 · Nov 28, 2017 · US
Compact Six-Port Photonic Crystal Circulator
US-2017322433-A1 · Nov 9, 2017 · US
Methods related to junction ferrite devices having improved insertion loss performance
US-2017294696-A1 · Oct 12, 2017 · US
Shaped Magnetic Bias Circulator
US-2017256836-A1 · Sep 7, 2017 · US
Non-reciprocal circuit element
US-9728831-B2 · Aug 8, 2017 · US
Tunable high isolation circulator
US-9711836-B1 · Jul 18, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/383?
- CPC H01P1/383 is the Cooperative Patent Classification code for “Junction circulators, e.g. Y-circulators.”
- How many patents are filed under CPC H01P1/383 (Junction circulators, e.g. Y-circulators)?
- Our database includes 109 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/383 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).