H04L 12/22
Arrangements for preventing the taking of data from a data transmission channel
Official title: Arrangements for preventing the taking of data from a data transmission channel without authorisation (means for verifying the identity or the authority of a user of a secure or secret communication system H04L9/32)
H04L12/22 (Arrangements for preventing the taking of data from a data transmission channel) appears on 119 US grants and 98 published applications in this corpus.
Search patents in H04L- Granted patents
- 119
- Published applications
- 98
- Assignees
- 99
- Inventors
- 258
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 4 | 4 |
| 2013 | 5 | 6 |
| 2014 | 7 | 6 |
| 2015 | 4 | 4 |
| 2016 | 1 | 2 |
| 2017 | 3 | 8 |
| 2018 | 4 | 11 |
| 2019 | 7 | 4 |
| 2020 | 7 | 2 |
| 2021 | 1 | 6 |
| 2022 | 3 | 1 |
| 2023 | 4 | 4 |
| 2024 | 4 | 5 |
| 2025 | 4 | 14 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Information processing apparatus, information processing method, and computer-readable recording medium11 Aug 2026US 12,706,937 B2Ntt Docomo Business, Inc.
- Communication analysis system, analysis method, and recording medium26 May 2026US 12,641,424 B2Panasonic Intellectual Property Corporation of America
- Information management system having firewall with transparency setting function20 Jan 2026US 12,531,838 B2Pzp Co.
- Detection device, detection method and detection program2 Dec 2025US 12,488,101 B2Autonetworks Technologies, Ltd.
- System and method to communicate using a secure obfuscated network14 Oct 2025US 12,445,417 B2Northrop Grumman Systems Corporation
- Information management system20 Aug 2026US 2026/0246762 A1Pzp Co.
- Information processing device, information processing method, and information processing program20 Aug 2026US 2026/0246796 A1NTT, Inc.
- Control Device For Communication Network30 Jul 2026US 2026/0222187 A1National Institute of Information and Communications Technology
- Fraud detection apparatus, fraud detection method, and recording medium23 Jul 2026US 2026/0214119 A1Spider Labs, Inc.
- Relay device, unauthorized frame detection method, and in-vehicle device2 Jul 2026US 2026/0184272 A1Autonetworks Technologies, Ltd.
Most cited
By later US patents
- System for signatureless transmission and reception of data packets between computer networks543US 5,548,646 ASun Microsystems, Inc. · 1996
- Authentication system using one-time passwords458US 5,592,553 AInternational Business Machines Corporation · 1997
- Systems and methods for providing content and services on a network system272US 8,364,806 B2Nomadix, Inc. · 2013
- Systems and methods for providing content and services on a network system260US 8,370,477 B2Nomadix, Inc. · 2013
- Bootstrap channel security arrangement for communication network259US 4,982,430 AGeneral Instrument Corporation · 1991