Robust multi-location jammer detection for security and iot devices
US-2026046056-A1 · Feb 12, 2026 · US
Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10)
Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04K3/20 |
| Official title | {Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10)} |
| Display label | Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10) |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 9 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and apparatus to validate data communicated by a vehicle
US-12499768-B2 · Dec 16, 2025 · US
Identification and mitigation of jamming attacks on autonomous vehicles
US-2025323751-A1 · Oct 16, 2025 · US
Antenna tuner with jammer rejection
US-2025240114-A1 · Jul 24, 2025 · US
Parallelly and diagonally placed meander-line slot resonators for mutual coupling reduction
US-12300884-B2 · May 13, 2025 · US
Amplifier with integrated notch filter
US-12170536-B2 · Dec 17, 2024 · US
Powertrain system with wireless communication nodes and integrated RF shield guide layer
US-12027676-B2 · Jul 2, 2024 · US
Methods and apparatus to validate data communicated by a vehicle
US-2024046796-A1 · Feb 8, 2024 · US
Amplifier with integrated notch filter
US-2023327693-A1 · Oct 12, 2023 · US
Methods and apparatus to validate data communicated by a vehicle
US-11769415-B2 · Sep 26, 2023 · US
Powertrain system with wireless communication nodes and integrated rf shield guide layer
US-2023187712-A1 · Jun 15, 2023 · US
Techniques for using reflecting nodes to cancel interfering signals in wireless communications
US-11581974-B1 · Feb 14, 2023 · US
Techniques for using reflecting nodes to cancel interfering signals in wireless communications
US-2023021768-A1 · Jan 26, 2023 · US
Parallelly and diagonally placed meander-line slot resonators for mutual coupling reduction
US-2022344806-A1 · Oct 27, 2022 · US
Methods and apparatus to validate data communicated by a vehicle
US-2021304613-A1 · Sep 30, 2021 · US
Method and apparatus for managing channel in WLAN system
US-11096151-B2 · Aug 17, 2021 · US
System and method for removing interferer signals
US-11050447-B1 · Jun 29, 2021 · US
Methods and apparatus to validate data communicated by a vehicle
US-11024180-B2 · Jun 1, 2021 · US
Coexistence of radio communication and radar probing
US-10969481-B2 · Apr 6, 2021 · US
Beacon-based precision navigation and timing (PNT) system
US-10884132-B1 · Jan 5, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04K3/20?
- CPC H04K3/20 is the Cooperative Patent Classification code for “Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10).”
- How many patents are filed under CPC H04K3/20 (Countermeasures against jamming (in radar G01S7/36; interference suppression in receivers H04B1/10))?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC H04K3/20 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).