H04B 2203/5462
Systems for power line communications
H04B2203/5462 (Systems for power line communications) appears on 1,658 US grants and 1,446 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,658
- Published applications
- 1,446
- Assignees
- 743
- Inventors
- 2,524
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 11 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 11 | 0 |
| 1983 | 14 | 0 |
| 1984 | 16 | 0 |
| 1985 | 14 | 0 |
| 1986 | 15 | 0 |
| 1987 | 22 | 0 |
| 1988 | 9 | 0 |
| 1989 | 21 | 0 |
| 1990 | 13 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 18 | 0 |
| 1997 | 11 | 0 |
| 1998 | 19 | 0 |
| 1999 | 25 | 0 |
| 2000 | 21 | 0 |
| 2001 | 23 | 15 |
| 2002 | 27 | 49 |
| 2003 | 34 | 60 |
| 2004 | 32 | 75 |
| 2005 | 45 | 83 |
| 2006 | 72 | 86 |
| 2007 | 65 | 81 |
| 2008 | 56 | 89 |
| 2009 | 35 | 63 |
| 2010 | 67 | 57 |
| 2011 | 67 | 54 |
| 2012 | 70 | 78 |
| 2013 | 49 | 89 |
| 2014 | 63 | 84 |
| 2015 | 82 | 84 |
| 2016 | 82 | 76 |
| 2017 | 91 | 49 |
| 2018 | 77 | 62 |
| 2019 | 87 | 61 |
| 2020 | 77 | 44 |
| 2021 | 33 | 32 |
| 2022 | 26 | 27 |
| 2023 | 18 | 16 |
| 2024 | 28 | 16 |
| 2025 | 18 | 11 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 2203/5483Using coupling circuitsIndexing code781
- H04B 2203/5491Using filtering and bypassingIndexing code466
- H04B 2203/547Via dc power distributionIndexing code383
- H04B 2203/5466Using three phases conductorsIndexing code356
- H04B 2203/5495Having measurements and testing channelIndexing code330
- H04B 2203/5479Using repeatersIndexing code154
- H04B 2203/5475Adapted for drill or well combined with data transmissionIndexing code75
Recent patents
- Methods and systems for operating an electric vehicle25 Aug 2026US 12,719,525 B2Accelerated Systems Inc.
- Discrete multitone based wireline telemetry system for single-mode telemetry applications14 Jul 2026US 12,683,649 B2Schlumberger Technology Corporation
- Power control system, device, and information processing system19 May 2026US 12,633,965 B2Daikin Industries, Ltd.
- Cableway with a vehicle having a closure drive and failsafe locking monitoring17 Mar 2026US 12,576,897 B2Innova Patent GmbH
- Systems, devices and methods for detection and/or prevention of power line communication17 Feb 2026US 12,556,300 B2S.G.A. Innovations Ltd.
- Active inductive impedance enhancement circuit applied to power line path2 Jul 2026US 2026/0189213 A1HK Oceancomm Technology Co., Limited
- Apparatus for managing solar modules2 Jul 2026US 2026/0189262 A1Hanwha Solutions Corporation
- Data transmission detection and mitigation over electrical power30 Apr 2026US 2026/0121686 A1International Business Machines Corporation
- Discrete multitone based wireline telemetry system for single-mode telemetry applications30 Apr 2026US 2026/0121687 A1Schlumberger Technology Corporation
- Circuits and methods for wearable device charging and wired control15 Jan 2026US 2026/0018912 A1Snap Inc.
Most cited
By later US patents
- System and method for data retrieval in AC power tools via an AC line cord1,103US 7,346,406 B2Black & Decker Inc. · 2008
- Patient care system886US 4,835,372 AClinCom Incorporated · 1989
- Refrigeration monitor unit797US 6,453,687 B2Robertshaw Controls Company · 2002
- Using an electric power cable as the vehicle for communicating an information-bearing signal through a barrier655US 8,253,516 B2AT&T Intellectual Property I, L. P. · 2012
- Patient identification and verification system and method636US 4,857,716 ACliniCom Incorporated · 1989