H04B 2203/5491
Using filtering and bypassing
Official title: using filtering and bypassing
H04B2203/5491 (Using filtering and bypassing) appears on 466 US grants and 369 published applications in this corpus.
Search patents in H04B- Granted patents
- 466
- Published applications
- 369
- Assignees
- 279
- Inventors
- 794
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 9 |
| 2002 | 8 | 18 |
| 2003 | 12 | 16 |
| 2004 | 15 | 33 |
| 2005 | 19 | 32 |
| 2006 | 30 | 36 |
| 2007 | 28 | 33 |
| 2008 | 24 | 22 |
| 2009 | 7 | 14 |
| 2010 | 22 | 16 |
| 2011 | 16 | 12 |
| 2012 | 22 | 19 |
| 2013 | 16 | 28 |
| 2014 | 12 | 13 |
| 2015 | 20 | 15 |
| 2016 | 15 | 7 |
| 2017 | 11 | 3 |
| 2018 | 12 | 10 |
| 2019 | 14 | 12 |
| 2020 | 8 | 2 |
| 2021 | 2 | 5 |
| 2022 | 5 | 5 |
| 2023 | 2 | 1 |
| 2024 | 3 | 5 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power control system, device, and information processing system19 May 2026US 12,633,965 B2Daikin Industries, Ltd.
- Systems, devices and methods for detection and/or prevention of power line communication17 Feb 2026US 12,556,300 B2S.G.A. Innovations Ltd.
- Signal transmission between electronic device and keyboard using high/low pass filters2 Dec 2025US 12,487,684 B2Honor Device Co., Ltd.
- Mobile devices, mobile systems and operating methods thereof11 Nov 2025US 12,470,251 B2Samsung Electronics Co., Ltd.
- Power filtering device18 Mar 2025US 12,253,252 B2Swarm Holdings LLC
- Active inductive impedance enhancement circuit applied to power line path2 Jul 2026US 2026/0189213 A1HK Oceancomm Technology Co., Limited
- Power line communication system2 Oct 2025US 2025/0310005 A1Huawei Digital Power Technologies Co., Ltd.
- Signal transmission method and related device17 Apr 2025US 2025/0123694 A1Honor Device Co., Ltd.
- Enhanced Edge Detect Power Line Communication26 Sep 2024US 2024/0322859 A1Google Inc.
- Power line carrier communication apparatus, method, and system15 Aug 2024US 2024/0275430 A1Hoymiles Power Electronics Inc.
Most cited
By later US patents
- Power transfer apparatus for concurrently transmitting data and power over data wires575US 5,994,998 A3Com Corporation · 1999
- Highly reliable power line communications system552US 6,441,723 B1General Electric Company · 2002
- Power transfer apparatus for concurrently transmitting data and power over data wires430US 6,140,911 A3Com Corporation · 2000
- Modem for pseudo noise communication on A.C. lines407US 4,835,517 AThe University of British Columbia · 1989
- Apparatus and methods for communicating with ultra-wideband electromagnetic waves381US 10,123,217 B1AT&T Intellectual Property I, L. P. · 2018