H04B 2203/00
Indexing scheme relating to line transmission systems
H04B2203/00 (Indexing scheme relating to line transmission systems) appears on 2,933 US grants and 2,940 published applications in this corpus.
Search patents in H04B- Granted patents
- 2,933
- Published applications
- 2,940
- Assignees
- 1,153
- Inventors
- 4,363
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 13 | 0 |
| 1978 | 12 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 10 | 0 |
| 1982 | 13 | 0 |
| 1983 | 16 | 0 |
| 1984 | 24 | 0 |
| 1985 | 19 | 0 |
| 1986 | 16 | 0 |
| 1987 | 27 | 0 |
| 1988 | 14 | 0 |
| 1989 | 26 | 0 |
| 1990 | 15 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 17 | 0 |
| 1994 | 12 | 0 |
| 1995 | 17 | 0 |
| 1996 | 27 | 0 |
| 1997 | 17 | 0 |
| 1998 | 34 | 0 |
| 1999 | 39 | 0 |
| 2000 | 34 | 0 |
| 2001 | 34 | 21 |
| 2002 | 44 | 87 |
| 2003 | 42 | 103 |
| 2004 | 43 | 132 |
| 2005 | 67 | 146 |
| 2006 | 105 | 150 |
| 2007 | 94 | 194 |
| 2008 | 91 | 177 |
| 2009 | 72 | 143 |
| 2010 | 130 | 145 |
| 2011 | 130 | 133 |
| 2012 | 154 | 188 |
| 2013 | 134 | 204 |
| 2014 | 158 | 169 |
| 2015 | 177 | 174 |
| 2016 | 171 | 142 |
| 2017 | 177 | 109 |
| 2018 | 129 | 111 |
| 2019 | 144 | 109 |
| 2020 | 135 | 92 |
| 2021 | 63 | 50 |
| 2022 | 56 | 57 |
| 2023 | 39 | 38 |
| 2024 | 54 | 30 |
| 2025 | 32 | 24 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor control device29 Sep 2026US 12,749,996 B2Lutron Technology Company LLC
- Methods and systems for operating an electric vehicle25 Aug 2026US 12,719,525 B2Accelerated Systems Inc.
- Communication method and communication apparatus25 Aug 2026US 12,719,526 B2Huawei Technologies Co., Ltd.
- Data transmission method, and power line communication apparatus and system21 Jul 2026US 12,689,408 B2Huawei Technologies Co., Ltd.
- Discrete multitone based wireline telemetry system for single-mode telemetry applications14 Jul 2026US 12,683,649 B2Schlumberger Technology Corporation
- Method for deploying a node device on site27 Aug 2026US 2026/0255284 A1Sagemcom Energy & Telecom SAS
- Automated detection of power line disconnection events and local alerts using wireless procedures13 Aug 2026US 2026/0237285 A1Charter Communications Operating, LLC
- System and method for restoring offshore platform communication30 Jul 2026US 2026/0222006 A1Saudi Arabian Oil Company
- 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
Most cited
By later US patents
- Wired, wireless, infrared, and powerline audio entertainment systems1,763US 7,853,341 B2KSC Industries, Inc. · 2010
- Wired, wireless, infrared, and powerline audio entertainment systems1,762US 8,103,009 B2KSC Industries, Inc. · 2012
- 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