H04B 2203/5404
Methods of transmitting or receiving signals via power distribution lines
H04B2203/5404 (Methods of transmitting or receiving signals via power distribution lines) appears on 1,393 US grants and 1,236 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,393
- Published applications
- 1,236
- Assignees
- 625
- Inventors
- 2,098
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 10 | 0 |
| 1983 | 12 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 13 | 0 |
| 1987 | 19 | 0 |
| 1988 | 9 | 0 |
| 1989 | 17 | 0 |
| 1990 | 13 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 16 | 0 |
| 1997 | 10 | 0 |
| 1998 | 24 | 0 |
| 1999 | 18 | 0 |
| 2000 | 23 | 0 |
| 2001 | 22 | 11 |
| 2002 | 21 | 34 |
| 2003 | 20 | 51 |
| 2004 | 24 | 72 |
| 2005 | 31 | 63 |
| 2006 | 49 | 63 |
| 2007 | 42 | 78 |
| 2008 | 37 | 68 |
| 2009 | 33 | 53 |
| 2010 | 52 | 39 |
| 2011 | 60 | 46 |
| 2012 | 65 | 83 |
| 2013 | 61 | 106 |
| 2014 | 72 | 81 |
| 2015 | 86 | 91 |
| 2016 | 86 | 54 |
| 2017 | 78 | 40 |
| 2018 | 51 | 38 |
| 2019 | 52 | 44 |
| 2020 | 49 | 41 |
| 2021 | 26 | 16 |
| 2022 | 20 | 25 |
| 2023 | 17 | 14 |
| 2024 | 26 | 12 |
| 2025 | 9 | 9 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 2203/5408Using protocolsIndexing code523
- H04B 2203/5416By adding signals to the wave form of the power sourceIndexing code500
- H04B 2203/5425Improving s/n by matching impedance, noise reduction, gain controlIndexing code487
- H04B 2203/542Using zero crossing informationIndexing code189
- H04B 2203/5412By modofying wave form of the power sourceIndexing code78
Recent patents
- Motor control device29 Sep 2026US 12,749,996 B2Lutron Technology Company LLC
- Data transmission method, and power line communication apparatus and system21 Jul 2026US 12,689,408 B2Huawei Technologies Co., Ltd.
- Bus station, bus system, and method for transmitting data in a two-wire bus system10 Feb 2026US 12,549,221 B2Robert Bosch GmbH
- Light-emitting diode lamp illumination system, and dimmer and light-emitting diode lamp thereof30 Dec 2025US 12,513,794 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Method and device for supplying electrical power to two or more technical devices25 Nov 2025US 12,483,295 B2Think and Vision GmbH
- Automated detection of power line disconnection events and local alerts using wireless procedures13 Aug 2026US 2026/0237285 A1Charter Communications Operating, LLC
- Polarity switching module for hybrid fiber coaxial networks2 Jul 2026US 2026/0189415 A1Technetix B.V.
- Air conditioning related equipment and air conditioning system18 Jun 2026US 2026/0168695 A1Daikin Industries, Ltd.
- Coexistence primitives in power line communication networks28 May 2026US 2026/0149483 A1Texas Instruments Incorporated
- Power line communication device and method thereof11 Dec 2025US 2025/0379612 A1Trendylite Corporation
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
- Patient identification and verification system and method636US 4,857,716 ACliniCom Incorporated · 1989
- Highly reliable power line communications system552US 6,441,723 B1General Electric Company · 2002
- Transmission medium having multiple cores and methods for use therewith526US 9,490,869 B1AT&T Intellectual Property I, L. P. · 2016