Precision Ferrite-Based Electromagnetic Signal Circulators for Quantum Computing Systems
US-2026073266-A1 · Mar 12, 2026 · US
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by ferromagnetic devices
by ferromagnetic devices · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/11 |
| Official title | by ferromagnetic devices |
| Display label | by ferromagnetic devices |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2023 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vertical microstrip-to-waveguide transition
US-12265172-B2 · Apr 1, 2025 · US
Vertical Microstrip-to-Waveguide Transition
US-2023384414-A1 · Nov 30, 2023 · US
Switchable element
US-11594795-B2 · Feb 28, 2023 · US
Switchable element
US-2021063833-A1 · Mar 4, 2021 · US
Liquid crystal-based high-frequency device and high-frequency switch
US-10921654-B2 · Feb 16, 2021 · US
Electronic rotary switch
US-10720295-B2 · Jul 21, 2020 · US
Electronic Rotary Switch
US-2020027676-A1 · Jan 23, 2020 · US
Liquid crystal-based high-frequency device and high-frequency switch
US-2018217456-A1 · Aug 2, 2018 · US
Systems and methods for ferrite redundancy switch networks
US-9786971-B2 · Oct 10, 2017 · US
Systems and methods for using power dividers for improved ferrite circulator RF power handling
US-9647309-B2 · May 9, 2017 · US
Systems and methods for using power dividers for improved ferrite circulator rf power handling
US-2016380323-A1 · Dec 29, 2016 · US
(m+1)-for-m ferrite redundancy switch and switch system
US-2016315369-A1 · Oct 27, 2016 · US
(M+1)-for-M ferrite redundancy switch and switch system
US-9472837-B1 · Oct 18, 2016 · US
Systems and methods for improved ferrite circulator RF power handling
US-9466865-B2 · Oct 11, 2016 · US
Systems and methods for using power dividers for improved ferrite circulator RF power handling
US-9466866-B2 · Oct 11, 2016 · US
Systems and methods for ferrite redundancy switch networks
US-2016013530-A1 · Jan 14, 2016 · US
Systems and methods for improved ferrite circulator rf power handling
US-2015288046-A1 · Oct 8, 2015 · US
Systems and methods for using power dividers for improved ferrite circulator rf power handling
US-2015288047-A1 · Oct 8, 2015 · US