H04L 12/28
Data switching networks: characterised by path configuration
Official title: characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] (wireless communication networks H04W {; arrangements for dividing the transmission path H04W40/00})
H04L12/28 (Data switching networks: characterised by path configuration) appears on 43,027 US grants and 44,599 published applications in this corpus.
Search patents in H04L- Granted patents
- 43,027
- Published applications
- 44,599
- Assignees
- 7,430
- Inventors
- 64,676
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 28 | 0 |
| 1978 | 9 | 0 |
| 1979 | 12 | 0 |
| 1980 | 22 | 0 |
| 1981 | 22 | 0 |
| 1982 | 30 | 0 |
| 1983 | 43 | 0 |
| 1984 | 54 | 0 |
| 1985 | 117 | 0 |
| 1986 | 113 | 0 |
| 1987 | 149 | 0 |
| 1988 | 137 | 0 |
| 1989 | 142 | 0 |
| 1990 | 119 | 0 |
| 1991 | 120 | 0 |
| 1992 | 136 | 0 |
| 1993 | 130 | 0 |
| 1994 | 218 | 0 |
| 1995 | 245 | 0 |
| 1996 | 302 | 0 |
| 1997 | 257 | 0 |
| 1998 | 414 | 0 |
| 1999 | 419 | 0 |
| 2000 | 488 | 0 |
| 2001 | 516 | 268 |
| 2002 | 518 | 1005 |
| 2003 | 604 | 1090 |
| 2004 | 651 | 1239 |
| 2005 | 655 | 1352 |
| 2006 | 872 | 1438 |
| 2007 | 726 | 1439 |
| 2008 | 863 | 1507 |
| 2009 | 976 | 1498 |
| 2010 | 1484 | 1616 |
| 2011 | 1428 | 1444 |
| 2012 | 1407 | 1523 |
| 2013 | 1473 | 1709 |
| 2014 | 1917 | 1850 |
| 2015 | 1886 | 2105 |
| 2016 | 1954 | 2339 |
| 2017 | 1959 | 2500 |
| 2018 | 2219 | 2563 |
| 2019 | 2658 | 2587 |
| 2020 | 2737 | 2729 |
| 2021 | 2568 | 2519 |
| 2022 | 2417 | 2356 |
| 2023 | 2307 | 1992 |
| 2024 | 2037 | 1686 |
| 2025 | 1571 | 1365 |
| 2026 | 887 | 880 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controller area network (CAN) bus system using CANsec security protocol6 Oct 2026US 12,754,874 B2Robert Bosch GmbH
- Subscriber station for a serial bus system, and method for communication with differential signals in a serial bus system6 Oct 2026US 12,756,420 B2Robert Bosch GmbH
- RF outlet power test device6 Oct 2026US 12,756,484 B1VeEX Inc.
- System and method for on-boarding smart sockets with a supervisor controller6 Oct 2026US 12,756,590 B2Honeywell International Inc.
- Communication receiver6 Oct 2026US 12,756,591 B2Denso Corporation
- System for detecting circuit anomalies in trailer wiring8 Oct 2026US 2026/0309762 A1Grote Industries, Inc.
- Household appliances sensor update management8 Oct 2026US 2026/0310438 A1Haier US Appliance Solutions, Inc.
- Systems and methods for updating energy storage management software in embedded systems8 Oct 2026US 2026/0310442 A1Electra Vehicles, Inc.
- Method to detect data communication lock-up in an uart communication8 Oct 2026US 2026/0310618 A1Microchip Technology Incorporated
- Communication device and communication system8 Oct 2026US 2026/0312399 A1Denso Corporation
Most cited
By later US patents
- Synchronous network for digital media streams2,236US 6,611,537 B1Centillium Communications, Inc. · 2003
- System and method for synchronizing operations among a plurality of independently clocked digital data processing devices1,949US 8,234,395 B2Sonos, Inc. · 2012
- Home audio/video network with two level device control1,918US 6,032,202 ASony Corporation of Japan · 2000
- System and method for providing content, management, and interactivity for client devices1,890US 7,130,616 B2Simple Devices · 2006
- Method and device for obtaining playlist content over a network1,821US 8,045,952 B2Horsham Enterprises, LLC · 2011