H04L 12/02
Details
H04L12/02 (Details) appears on 27,063 US grants and 31,633 published applications in this corpus.
Search patents in H04L- Granted patents
- 27,063
- Published applications
- 31,633
- Assignees
- 5,546
- Inventors
- 45,892
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 15 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 17 | 0 |
| 1989 | 18 | 0 |
| 1990 | 18 | 0 |
| 1991 | 23 | 0 |
| 1992 | 18 | 0 |
| 1993 | 30 | 0 |
| 1994 | 39 | 0 |
| 1995 | 54 | 0 |
| 1996 | 69 | 0 |
| 1997 | 86 | 0 |
| 1998 | 147 | 0 |
| 1999 | 173 | 0 |
| 2000 | 201 | 0 |
| 2001 | 199 | 112 |
| 2002 | 244 | 572 |
| 2003 | 250 | 627 |
| 2004 | 284 | 633 |
| 2005 | 290 | 854 |
| 2006 | 428 | 934 |
| 2007 | 384 | 1093 |
| 2008 | 477 | 1119 |
| 2009 | 632 | 1122 |
| 2010 | 846 | 1203 |
| 2011 | 919 | 1176 |
| 2012 | 1107 | 1470 |
| 2013 | 1260 | 1520 |
| 2014 | 1573 | 1728 |
| 2015 | 1668 | 1951 |
| 2016 | 1678 | 1847 |
| 2017 | 1742 | 1495 |
| 2018 | 1418 | 1439 |
| 2019 | 1686 | 1489 |
| 2020 | 1596 | 1552 |
| 2021 | 1444 | 1405 |
| 2022 | 1369 | 1511 |
| 2023 | 1434 | 1606 |
| 2024 | 1354 | 1405 |
| 2025 | 1186 | 1036 |
| 2026 | 620 | 734 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 12/16Arrangements for providing special services to substations17,719
- H04L 12/14Charging, metering or billing arrangements specially adapted for data communications4,712
- H04L 12/10Current supply arrangements2,546
- H04L 12/12Arrangements for remote connection or disconnection of substations or of equipment thereof2,248
- H04L 12/22Arrangements for preventing the taking of data from a data transmission channel119
- H04L 12/06Answer-back mechanisms or circuits107
- H04L 12/04Switchboards34
- H04L 12/08Allotting numbers to messages32
Recent patents
- System, method, and application for exchanging content in a social network environment6 Oct 2026US 12,755,256 B2Adeia Media Holdings LLC
- Data transmission device on server, data transmission method and program on server6 Oct 2026US 12,756,584 B2NTT, Inc.
- Dynamic management of energy efficient ethernet feature6 Oct 2026US 12,756,585 B2Cisco Technology, Inc.
- Methods for supporting user notification services for events in a network6 Oct 2026US 12,756,586 B2Telefonaktiebolaget LM Ericsson (publ)
- Obtaining information relating to tethering events6 Oct 2026US 12,756,587 B2Telefonaktiebolaget LM Ericsson (publ)
- Speech translation using latency based filler generation8 Oct 2026US 2026/0311681 A1Cisco Technology, Inc.
- Opportunistic content delivery using delta coding8 Oct 2026US 2026/0312676 A1ViaSat, Inc.
- Chunk based modular video processing8 Oct 2026US 2026/0312836 A1Clari Inc.
- Serial broadcast readout in a daisy chain network8 Oct 2026US 2026/0312837 A1ams-OSRAM International GmbH
- Machine learning based rating failure characterization in wireless communication networks8 Oct 2026US 2026/0312878 A1T-Mobile Innovations LLC
Most cited
By later US patents
- System for allowing all remote computers to perform annotation on an image and replicating the annotated image on the respective displays of other comuters2,385US 5,608,872 ANCR Corporation · 1997
- Instant sharing of documents on a remote server2,347US 6,654,032 B1WebEx Communications, Inc. · 2003
- Method and apparatus for determining behavioral profile of a computer user2,336US 5,848,396 AFreedom of Information, Inc. · 1998
- System for allowing user of any computer to draw image over that generated by the host computer and replicating the drawn image to other computers2,300US 5,649,104 ANCR Corporation · 1997
- Remote collaboration system including first program means translating user inputs into annotations and running on all computers while second program means runs on one computer2,250US 5,761,419 ANCR Corporation · 1998