H04L 25/02
Details
Official title: Details {; arrangements for supplying electrical power along data transmission lines (systems for transmitting signals via power distribution lines H04B3/54)}
H04L25/02 (Details) appears on 31,772 US grants and 30,443 published applications in this corpus.
Search patents in H04L- Granted patents
- 31,772
- Published applications
- 30,443
- Assignees
- 4,056
- Inventors
- 32,850
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 52 | 0 |
| 1977 | 52 | 0 |
| 1978 | 32 | 0 |
| 1979 | 29 | 0 |
| 1980 | 25 | 0 |
| 1981 | 54 | 0 |
| 1982 | 44 | 0 |
| 1983 | 43 | 0 |
| 1984 | 46 | 0 |
| 1985 | 48 | 0 |
| 1986 | 58 | 0 |
| 1987 | 53 | 0 |
| 1988 | 53 | 0 |
| 1989 | 85 | 0 |
| 1990 | 56 | 0 |
| 1991 | 96 | 0 |
| 1992 | 102 | 0 |
| 1993 | 135 | 0 |
| 1994 | 167 | 0 |
| 1995 | 170 | 0 |
| 1996 | 209 | 0 |
| 1997 | 217 | 0 |
| 1998 | 286 | 0 |
| 1999 | 298 | 0 |
| 2000 | 315 | 0 |
| 2001 | 443 | 160 |
| 2002 | 486 | 680 |
| 2003 | 511 | 784 |
| 2004 | 572 | 973 |
| 2005 | 543 | 1034 |
| 2006 | 871 | 1084 |
| 2007 | 833 | 1266 |
| 2008 | 913 | 1373 |
| 2009 | 943 | 1476 |
| 2010 | 1236 | 1488 |
| 2011 | 1241 | 1348 |
| 2012 | 1568 | 1403 |
| 2013 | 1745 | 1408 |
| 2014 | 2020 | 1522 |
| 2015 | 1933 | 1519 |
| 2016 | 1566 | 1255 |
| 2017 | 1413 | 1282 |
| 2018 | 1308 | 1299 |
| 2019 | 1537 | 1425 |
| 2020 | 1449 | 1341 |
| 2021 | 1257 | 1250 |
| 2022 | 1075 | 1118 |
| 2023 | 1018 | 1123 |
| 2024 | 1008 | 1117 |
| 2025 | 974 | 983 |
| 2026 | 584 | 732 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 25/03Shaping networks in transmitter or receiver14,986
- H04L 25/0202Channel estimation10,883
- H04L 25/0264Arrangements for coupling to transmission lines5,173
- H04L 25/06Dc level restoring means3,042
- H04L 25/14Channel dividing arrangements , i.e. in which a single bit stream is1,266
- H04L 25/08Modifications for reducing interference1,129
- H04L 25/20Repeater circuits471
- H04L 25/0262Arrangements for detecting the data rate of an incoming signal406
All 12 subgroupsShow fewer
- H04L 25/05Electric or magnetic storage of signals before transmitting or retransmitting for changing309
- H04L 25/026Arrangements for coupling transmitters, receivers or transceivers to transmission lines145
- H04L 25/12Compensating for variations in line impedance92
- H04L 25/10Compensating for variations in line balance58
Recent patents
- Data correction and phase optimization in high-speed receivers6 Oct 2026US 12,754,237 B2Diodes Incorporated
- System for deployment of the two-way relay network involving iterative variational bayesian inference based channel estimation and a method thereof6 Oct 2026US 12,756,595 B2Indian Institute of Technology Kharagpur
- Phase tracking reference signal configuration for rate-splitting multiple input multiple output communications6 Oct 2026US 12,756,596 B2QUALCOMM Incorporated
- Indication for non-causal demodulation reference signal cross-slot combining6 Oct 2026US 12,756,597 B2QUALCOMM Incorporated
- Capability and configuration of a device for providing channel state feedback6 Oct 2026US 12,756,598 B2QUALCOMM Incorporated
- Communication device and communication system8 Oct 2026US 2026/0312399 A1Denso Corporation
- Exposure Detection and Reporting For Wireless Communications8 Oct 2026US 2026/0312612 A1Comcast Cable Communications, LLC
- Multi-antenna system for non-terrestrial communications8 Oct 2026US 2026/0312626 A1Astranis Space Technologies Corp.
- A mimo equaliser circuit for successive interference cancellation and method therefor8 Oct 2026US 2026/0312634 A1Accelercomm Limited
- Recovery mechanism for a sequence misdetection8 Oct 2026US 2026/0312722 A1QUALCOMM Incorporated
Most cited
By later US patents
- Determination of a channel estimate of a transmission channel991US 7,561,637 B2Telefonaktiebolaget'l M Ericsson (Publ) · 2009
- Method and apparatus for a RADSL transceiver warm start activation procedure with precoding938US 5,852,630 AGlobespan Semiconductor, Inc. · 1998
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum691US 5,282,222 A1994
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999