Information leakage prevention shield device
US-2023299870-A1 · Sep 21, 2023 · US
using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00)
using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04K3/68 |
| Official title | {using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00)} |
| Display label | using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00) |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 11 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Covert communication technique for intelligent reflecting surface assisted wireless networks
US-11750319-B1 · Sep 5, 2023 · US
Microelectronic packages having coaxially-shielded radio frequency input/output interfaces
US-2023253339-A1 · Aug 10, 2023 · US
Methods for Reconfigurable Intelligent Surface (RIS) Aided Cooperative Directional Security
US-2023232239-A1 · Jul 20, 2023 · US
Service for real-time spoofing/jamming/meaconing warning
US-11480652-B2 · Oct 25, 2022 · US
Airborne redirection unit for deflecting a radio frequency energy beam
US-2022311146-A1 · Sep 29, 2022 · US
Test system
US-11418424-B2 · Aug 16, 2022 · US
Path profile analysis
US-11356192-B2 · Jun 7, 2022 · US
Path profile analysis
US-2022149978-A1 · May 12, 2022 · US
Acoustic metamaterial
US-11308931-B2 · Apr 19, 2022 · US
System for physically defeating unmanned aerial vehicles
US-11231254-B1 · Jan 25, 2022 · US
Test equipment for over the air tests as well as method for testing a device under test
US-11187749-B2 · Nov 30, 2021 · US
Providing localized jamming effects in a training exercise
US-2021328705-A1 · Oct 21, 2021 · US
Device agnostic audio path sealing
US-11114081-B2 · Sep 7, 2021 · US
System and method for wireless power transfer using time reversed electromagnetic wave propagation
US-11101915-B2 · Aug 24, 2021 · US
Test system
US-2021226881-A1 · Jul 22, 2021 · US
System for physically capturing and signal-defeating unmanned aerial vehicles
US-11054224-B1 · Jul 6, 2021 · US
Blocking jamming signals intended to disrupt communications
US-10826644-B2 · Nov 3, 2020 · US
Acoustic metamaterial
US-2020312292-A1 · Oct 1, 2020 · US
Device Agnostic Audio Path Sealing
US-2020265825-A1 · Aug 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04K3/68?
- CPC H04K3/68 is the Cooperative Patent Classification code for “using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00).”
- How many patents are filed under CPC H04K3/68 (using passive jamming, e.g. by shielding or reflection (shielding of apparatus or components against electric or magnetic field H05K9/00))?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC H04K3/68 growing?
- Publication counts under this code: 6 in 2024 vs 8 in 2025 (latest complete years).