Integrated auto-transformer based zero or 180 degrees phase shifter
US-2024120148-A1 · Apr 11, 2024 · US
using a ferromagnetic device
using a ferromagnetic device · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/19 |
| Official title | using a ferromagnetic device |
| Display label | using a ferromagnetic device |
| Total patents | 29 |
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 | 4 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Non-reciprocal microwave window
US-11817612-B2 · Nov 14, 2023 · US
Frequency tunable rf phase shifter or circulator having a wide-band saw-multiferroic hybrid device
US-2023336144-A1 · Oct 19, 2023 · US
Non-Reciprocal Microwave Window
US-2022115758-A1 · Apr 14, 2022 · US
Non-reciprocal microwave window
US-11258149-B2 · Feb 22, 2022 · US
Non-Reciprocal Microwave Window
US-2021167475-A1 · Jun 3, 2021 · US
Mo-doped Co2Z-type ferrite composite material for use ultra-high frequency antennas
US-10766786-B2 · Sep 8, 2020 · US
Additive manufacturing methods for magnetic materials
US-10737424-B2 · Aug 11, 2020 · US
Apparatuses and methods for mode suppression in rectangular waveguide
US-10615474-B2 · Apr 7, 2020 · US
Electromagnetic energy harvester for aircraft applications
US-10468180-B2 · Nov 5, 2019 · US
Apparatuses and methods for mode suppression in rectangular waveguide
US-2019267690-A1 · Aug 29, 2019 · US
Electromagnetic energy harvester for aircraft applications
US-2019057811-A1 · Feb 21, 2019 · US
Ferrite composite sleeve systems and methods for coaxial applications
US-10005217-B2 · Jun 26, 2018 · US
Magnetic-photoconductive material, magneto-optical data storage device, magneto-optical data storage system, and light-tunable microwave components comprising a photoconductive-ferromagnetic device
US-2018137961-A1 · May 17, 2018 · US
Mo-doped cozz-type ferrite composite material for use ultra-high frequency
US-2018016157-A1 · Jan 18, 2018 · US
Precision batch production method for manufacturing ferrite rods
US-9825347-B2 · Nov 21, 2017 · US
Additive manufacturing systems and methods for magnetic materials
US-2017312967-A1 · Nov 2, 2017 · US
Two-dimensional electronically steerable antenna
US-9799955-B2 · Oct 24, 2017 · US
Additive manufacturing systems and methods for magnetic materials
US-9731445-B2 · Aug 15, 2017 · US
Ferrite composite sleeve systems and methods for coaxial applications
US-2017050363-A1 · Feb 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/19?
- CPC H01P1/19 is the Cooperative Patent Classification code for “using a ferromagnetic device.”
- How many patents are filed under CPC H01P1/19 (using a ferromagnetic device)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/19 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).