Communication of multiple data streams over ground power lines
US-10153807-B1 · Dec 11, 2018 · US
using the near field of leaky cables, e.g. of leaky coaxial cables
using the near field of leaky cables, e.g. of leaky coaxial cables · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B5/28 |
| Official title | using the near field of leaky cables, e.g. of leaky coaxial cables |
| Display label | using the near field of leaky cables, e.g. of leaky coaxial cables |
| Total patents | 147 |
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 | 9 |
| 2016 | 20 |
| 2017 | 14 |
| 2018 | 25 |
| 2019 | 27 |
| 2020 | 20 |
| 2021 | 8 |
| 2022 | 12 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Information communication device, information communication system, and information communication method
US-2018351603-A1 · Dec 6, 2018 · US
Apparatus and methods for dynamic impedance matching of a guided wave launcher
US-10142854-B2 · Nov 27, 2018 · US
Leaky-wave antennas for medical applications
US-10080610-B2 · Sep 25, 2018 · US
Method and apparatus for transmitting or receiving signals in a transportation system
US-2018254800-A1 · Sep 6, 2018 · US
Apparatus and methods for dynamic impedance matching of a guided wave launcher
US-2018249342-A1 · Aug 30, 2018 · US
Digital wireless communication device and digital wireless communication system
US-2018145728-A1 · May 24, 2018 · US
Apparatus and methods for dynamic impedance matching of a guided wave launcher
US-9973940-B1 · May 15, 2018 · US
Method and apparatus for coupling an antenna to a device
US-2018131406-A1 · May 10, 2018 · US
Network termination and methods for use therewith
US-9967002-B2 · May 8, 2018 · US
Methods and apparatus for inducing electromagnetic waves within pathways of a cable
US-2018123836-A1 · May 3, 2018 · US
Directional coupling communication apparatus
US-2018076853-A1 · Mar 15, 2018 · US
Arrangement comprising a network node and leaky cable
US-9912377-B2 · Mar 6, 2018 · US
Switching between multiple coupling modes
US-9913077-B2 · Mar 6, 2018 · US
Network termination and methods for use therewith
US-9912382-B2 · Mar 6, 2018 · US
Methods and apparatus for inducing electromagnetic waves in a cable
US-2018062886-A1 · Mar 1, 2018 · US
Method and apparatus for coupling an antenna to a device
US-9882608-B2 · Jan 30, 2018 · US
Passive electrical coupling device and methods for use therewith
US-2017373721-A1 · Dec 28, 2017 · US
Method and apparatus for transmitting or receiving signals in a transportation system
US-2017373720-A1 · Dec 28, 2017 · US
Portable device including an electrode for transmitting data by intracorporeal current
US-9838088-B2 · Dec 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B5/28?
- CPC H04B5/28 is the Cooperative Patent Classification code for “using the near field of leaky cables, e.g. of leaky coaxial cables.”
- How many patents are filed under CPC H04B5/28 (using the near field of leaky cables, e.g. of leaky coaxial cables)?
- Our database includes 147 publications tagged with this CPC code.
- Is patent activity under CPC H04B5/28 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).