H04L 12/413
With random access
Official title: with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
H04L12/413 (With random access) appears on 2,057 US grants and 1,576 published applications in this corpus.
Search patents in H04L- Granted patents
- 2,057
- Published applications
- 1,576
- Assignees
- 772
- Inventors
- 3,907
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 14 | 0 |
| 1984 | 10 | 0 |
| 1985 | 23 | 0 |
| 1986 | 20 | 0 |
| 1987 | 27 | 0 |
| 1988 | 28 | 0 |
| 1989 | 22 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 19 | 0 |
| 1994 | 35 | 0 |
| 1995 | 36 | 0 |
| 1996 | 38 | 0 |
| 1997 | 41 | 0 |
| 1998 | 59 | 0 |
| 1999 | 46 | 0 |
| 2000 | 46 | 0 |
| 2001 | 42 | 9 |
| 2002 | 45 | 53 |
| 2003 | 59 | 66 |
| 2004 | 50 | 57 |
| 2005 | 37 | 43 |
| 2006 | 50 | 56 |
| 2007 | 37 | 63 |
| 2008 | 38 | 61 |
| 2009 | 34 | 83 |
| 2010 | 70 | 85 |
| 2011 | 61 | 82 |
| 2012 | 80 | 85 |
| 2013 | 74 | 92 |
| 2014 | 114 | 95 |
| 2015 | 98 | 64 |
| 2016 | 96 | 58 |
| 2017 | 67 | 71 |
| 2018 | 66 | 68 |
| 2019 | 71 | 50 |
| 2020 | 64 | 74 |
| 2021 | 64 | 64 |
| 2022 | 67 | 74 |
| 2023 | 67 | 34 |
| 2024 | 43 | 30 |
| 2025 | 38 | 31 |
| 2026 | 13 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transmitting module for a transmitting/receiving device of a subscriber station of a serial bus system and method for transmitting a message with differential signals in a serial bus system11 Aug 2026US 12,706,773 B2Robert Bosch GmbH
- Physical layer collision avoidance device and method for performing emergency transmission thereof14 Jul 2026US 12,683,830 B2IC Plus Corp.
- Multi-user multi-GPU render server apparatus and methods30 Jun 2026US 12,670,539 B2Pme IP Pty Ltd
- Fraud detection method, fraud detection device, and recording medium16 Jun 2026US 12,659,335 B2Panasonic Intellectual Property Corporation of America
- Method and node of a data network for forwarding data content26 May 2026US 12,640,958 B2Inventio AG
- Semiconductor device and method for driving the same8 Oct 2026US 2026/0312932 A1Renesas Electronics Corporation
- Methods of individualizing device identifications on a non-arbitrated bus24 Sep 2026US 2026/0291775 A1HiViz Lighting, Inc.
- Ethernet collision detection27 Aug 2026US 2026/0254675 A1Infineon Technologies AG
- Method and apparatus for controlling communication of data collision avoidance in domain and a vehicle and storage medium including the same13 Aug 2026US 2026/0238511 A1Hyundai Motor Company
- User equipment initiated channel occupancy time in frame based equipment mode23 Jul 2026US 2026/0214704 A1QUALCOMM Incorporated
Most cited
By later US patents
- Sensor actuator bus system391US 5,469,150 AHoneywell Inc. · 1995
- Multimedia conferencing using parallel networks374US 5,916,302 AInternational Business Machines Corporation · 1999
- Multipoint data communication system with collision detection324US 4,063,220 AXerox Corporation · 1977
- Data communication transceiver using identification protocol319US 5,365,551 AMicron Technology, Inc. · 1994
- Protective sheath for transvaginal anchor implantation devices295US 6,264,676 B1SciMed Life Systems, Inc. · 2001