H04L 12/06
Answer-back mechanisms or circuits
H04L12/06 (Answer-back mechanisms or circuits) appears on 107 US grants and 113 published applications in this corpus.
Search patents in H04L- Granted patents
- 107
- Published applications
- 113
- Assignees
- 66
- Inventors
- 226
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 5 | 22 |
| 2017 | 10 | 10 |
| 2018 | 12 | 14 |
| 2019 | 10 | 8 |
| 2020 | 9 | 12 |
| 2021 | 14 | 9 |
| 2022 | 7 | 5 |
| 2023 | 10 | 9 |
| 2024 | 9 | 4 |
| 2025 | 5 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Session establishment method and apparatus, access network device and storage medium20 Jan 2026US 12,531,756 B2Zte Corporation
- Station and method for receiving a frame comprising a configuration change counter corresponding to another access point24 Jun 2025US 12,342,395 B2InterDigital Patent Holdings, Inc.
- Intelligent layout of composite data structures in tiered storage with persistent memory27 May 2025US 12,314,230 B2Cisco Technology, Inc.
- Systems and methods to establish service request interactions27 May 2025US 12,316,688 B2Softphone SRL
- Driving circuit, electronic device and communication method therefor29 Apr 2025US 12,287,749 B2Boe Technology Group Co., Ltd.
- User equipment (ue) access support for a standalone non-public network(snpn)24 Sep 2026US 2026/0292489 A1Lenovo (Singapore) Pte. Ltd.
- Destination initiated network transmission for data streams5 Feb 2026US 2026/0037475 A1NVIDIA Corporation
- Network transmission for data streams5 Feb 2026US 2026/0037476 A1NVIDIA Corporation
- Station and method for receiving a frame comprising a configuration change counter corresponding to another access point2 Oct 2025US 2025/0311026 A1InterDigital Patent Holdings, Inc.
- Systems and methods to establish service request interactions7 Aug 2025US 2025/0254201 A1Softphone SRL
Most cited
By later US patents
- Method and apparatus for transferring data between IP network devices and SCSI and fibre channel devices over an IP network387US 6,400,730 B1Nishan Systems, Inc. · 2002
- Secure network enrollment43US 9,686,238 B1Oceus Networks Inc. · 2017
- Provisioning a shared secret to a portable electronic device and to a service entity42US 9,209,980 B2BlackBerry Limited · 2015
- Method and apparatus for transferring data between IP network devices and SCSI and fibre channel devices over an IP network38US 7,197,047 B2Nishan Systems, Inc. · 2007
- System, device, and method of visual login and stochastic cryptography33US 10,032,010 B2Biocatch Ltd. · 2018