H04L 43/18
Protocol analysers
H04L43/18 (Protocol analysers) appears on 1,052 US grants and 1,078 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,052
- Published applications
- 1,078
- Assignees
- 483
- Inventors
- 2,236
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 7 |
| 2002 | 8 | 30 |
| 2003 | 10 | 20 |
| 2004 | 19 | 33 |
| 2005 | 16 | 35 |
| 2006 | 17 | 43 |
| 2007 | 23 | 46 |
| 2008 | 27 | 34 |
| 2009 | 38 | 39 |
| 2010 | 43 | 37 |
| 2011 | 34 | 44 |
| 2012 | 50 | 43 |
| 2013 | 44 | 63 |
| 2014 | 60 | 63 |
| 2015 | 66 | 49 |
| 2016 | 58 | 49 |
| 2017 | 44 | 66 |
| 2018 | 65 | 64 |
| 2019 | 57 | 45 |
| 2020 | 64 | 48 |
| 2021 | 62 | 60 |
| 2022 | 54 | 54 |
| 2023 | 60 | 41 |
| 2024 | 43 | 34 |
| 2025 | 36 | 23 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method and device for identifying id-specific functions of vehicle communication protocol10 Sep 2026US 2026/0270184 A1Kookmin University Industry Academy Cooperation Foundation
- Method, system and computer program for anomaly detection in mobile cellular networks25 Jun 2026US 2026/0180877 A1Telefónica Innovacion Digital S.L.
- Systems and methods for anomaly detection using test case signatures18 Jun 2026US 2026/0172337 A1Verizon Patent and Licensing Inc.
- Low latency software defined networking4 Jun 2026US 2026/0156050 A1Cfph, LLC
- Data stream analytics at service layer14 May 2026US 2026/0133976 A1InterDigital Patent Holdings, Inc.
Most cited
By later US patents
- System and method for monitoring quality of service over network533US 6,078,953 AUkiah Software, Inc. · 2000
- Apparatus and method of analyzing internet activity486US 5,787,253 AAn Group Limited · 1998
- Method and system for adaptive network security using intelligent packet analysis395US 6,499,107 B1Cisco Technology, Inc. · 2002
- Low overhead continuous monitoring of network performance324US 6,363,056 B1International Business Machines Corporation · 2002
- Obfuscating network traffic from previously collected network traffic221US 8,996,728 B2Telcordia Technologies, Inc. · 2015