H04L 25/085
Arrangements for reducing interference in line transmission systems
Official title: {Arrangements for reducing interference in line transmission systems, e.g. by differential transmission}
H04L25/085 (Arrangements for reducing interference in line transmission systems) appears on 401 US grants and 353 published applications in this corpus.
Search patents in H04L- Granted patents
- 401
- Published applications
- 353
- Assignees
- 223
- Inventors
- 714
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 5 |
| 2002 | 14 | 4 |
| 2003 | 9 | 11 |
| 2004 | 9 | 25 |
| 2005 | 14 | 18 |
| 2006 | 14 | 12 |
| 2007 | 13 | 14 |
| 2008 | 11 | 17 |
| 2009 | 8 | 13 |
| 2010 | 12 | 19 |
| 2011 | 14 | 8 |
| 2012 | 13 | 4 |
| 2013 | 11 | 11 |
| 2014 | 11 | 7 |
| 2015 | 14 | 19 |
| 2016 | 18 | 23 |
| 2017 | 22 | 24 |
| 2018 | 22 | 20 |
| 2019 | 28 | 25 |
| 2020 | 23 | 20 |
| 2021 | 23 | 15 |
| 2022 | 12 | 10 |
| 2023 | 10 | 14 |
| 2024 | 8 | 6 |
| 2025 | 10 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Means and method for a synchronous network communications system357US 6,377,640 B2Stanford Syncom, Inc. · 2002
- Channel equalization system and method265US 6,904,110 B22005
- System and method for detecting noise source in a power line communications system226US 7,468,657 B2Current Technologies, LLC · 2008
- Pseudo-differential interfacing device having a switching circuit226US 7,884,648 B2Excem · 2011
- Methods and systems for transmitting and receiving differential signals over a plurality of conductors211US 6,556,628 B1The University of North Carolina at Chapel Hill · 2003