H04L 25/0264
Arrangements for coupling to transmission lines
Official title: {Arrangements for coupling to transmission lines (duplexing arrangements H04L5/14; line equalisers, line build-out devices H04L25/03878)}
H04L25/0264 (Arrangements for coupling to transmission lines) appears on 5,173 US grants and 4,421 published applications in this corpus.
Search patents in H04L- Granted patents
- 5,173
- Published applications
- 4,421
- Assignees
- 1,220
- Inventors
- 7,006
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 19 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 35 | 0 |
| 1995 | 43 | 0 |
| 1996 | 65 | 0 |
| 1997 | 51 | 0 |
| 1998 | 56 | 0 |
| 1999 | 53 | 0 |
| 2000 | 82 | 0 |
| 2001 | 130 | 30 |
| 2002 | 157 | 143 |
| 2003 | 146 | 123 |
| 2004 | 157 | 176 |
| 2005 | 142 | 197 |
| 2006 | 175 | 206 |
| 2007 | 179 | 197 |
| 2008 | 187 | 249 |
| 2009 | 188 | 212 |
| 2010 | 211 | 203 |
| 2011 | 217 | 196 |
| 2012 | 201 | 198 |
| 2013 | 210 | 178 |
| 2014 | 244 | 231 |
| 2015 | 273 | 216 |
| 2016 | 240 | 196 |
| 2017 | 224 | 156 |
| 2018 | 179 | 161 |
| 2019 | 225 | 186 |
| 2020 | 207 | 166 |
| 2021 | 175 | 146 |
| 2022 | 153 | 157 |
| 2023 | 121 | 138 |
| 2024 | 115 | 162 |
| 2025 | 157 | 124 |
| 2026 | 75 | 74 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 25/0272Arrangements for coupling to multiple lines2,490
- H04L 25/028Arrangements specific to the transmitter end1,891
- H04L 25/0292Arrangements specific to the receiver end1,140
- H04L 25/0278Arrangements for impedance matching1,098
- H04L 25/0266Arrangements for providing galvanic isolation847
- H04L 25/0298Arrangement for terminating transmission lines546
Recent patents
- Equalizer and transmitter including the same29 Sep 2026US 12,750,258 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Communication apparatus and communication system8 Sep 2026US 12,731,905 B2Canon Kabushiki Kaisha
- High-speed octal-rate wireline transmitters8 Sep 2026US 12,732,190 B1Synopsys, Inc.
- Transmitter comprising feed forward equalizer8 Sep 2026US 12,732,399 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Signal transmission device and signal transmission system1 Sep 2026US 12,726,187 B2Hitachi Astemo, Ltd.
- Differential envelope detector circuit with common mode noise suppression8 Oct 2026US 2026/0312844 A1Infineon Technologies AG
- Serdes transmitter and receiver utilizing single frequency phase amplitude modulation17 Sep 2026US 2026/0280545 A1Texas Milkyway Inc.
- Communication interface circuit supporting communication link change and method of operating same17 Sep 2026US 2026/0280943 A1Samsung Electronics Co., Ltd.
- Surface-Powered Impedance-Modulated Telemetry System and Related Methods27 Aug 2026US 2026/0251060 A1RIME Downhole Technologies, LLC
- Digital isolator architecture for hybrid capacitor and inductor27 Aug 2026US 2026/0254475 A1Kinetic Technologies International Holdings LP
Most cited
By later US patents
- Memory array with read/write methods445US 6,754,746 B1Monolithic System Technology, Inc. · 2004
- Apparatus and methods for measuring signals440US 10,027,427 B2AT&T Intellectual Property I, L. P. · 2018
- Semiconductor device and data processing system418US 8,351,292 B2Elpida Memory, Inc. · 2013
- Electrical current source circuitry for a bus416US 5,254,883 ARambus Inc. · 1993
- Apparatus and methods for inducing electromagnetic waves on a cable368US 10,129,057 B2AT&T Intellectual Property I, L. P. · 2018