H04L 63/0421
Anonymous communication, i.e. the party's identifiers are hidden from the other party
Official title: {Anonymous communication, i.e. the party's identifiers are hidden from the other party or parties, e.g. using an anonymizer}
H04L63/0421 (Anonymous communication, i.e. the party's identifiers are hidden from the other party) appears on 1,386 US grants and 1,652 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,386
- Published applications
- 1,652
- Assignees
- 647
- Inventors
- 3,038
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 9 |
| 2002 | 0 | 20 |
| 2003 | 0 | 13 |
| 2004 | 5 | 20 |
| 2005 | 4 | 14 |
| 2006 | 16 | 26 |
| 2007 | 9 | 20 |
| 2008 | 13 | 21 |
| 2009 | 8 | 26 |
| 2010 | 17 | 28 |
| 2011 | 21 | 37 |
| 2012 | 23 | 37 |
| 2013 | 34 | 63 |
| 2014 | 52 | 60 |
| 2015 | 62 | 78 |
| 2016 | 62 | 93 |
| 2017 | 75 | 89 |
| 2018 | 84 | 97 |
| 2019 | 101 | 141 |
| 2020 | 113 | 137 |
| 2021 | 114 | 148 |
| 2022 | 156 | 133 |
| 2023 | 125 | 114 |
| 2024 | 124 | 101 |
| 2025 | 107 | 83 |
| 2026 | 55 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Private data sharing system15 Sep 2026US 12,739,100 B2
- Obfuscation in privacy beacon8 Sep 2026US 12,732,486 B2Apple Inc.
- Media Access Control (MAC) randomized bonjour servers identification and policy application8 Sep 2026US 12,732,497 B2Hewlett Packard Enterprise Development LP
- Anonymous data collection for vehicle sensor data25 Aug 2026US 12,717,965 B2Atieva, Inc.
- Augmented reality information display and interaction via NFC based authentication25 Aug 2026US 12,718,038 B2Capital One Services, LLC
- System for user-sourced crime information24 Sep 2026US 2026/0291999 A1
- Follow Me: Method and System for Facilitating Communication Based on Sober Living Interests and Living a Sober Lifestyle10 Sep 2026US 2026/0269086 A1
- Multi-Layered Privacy Protection and Tracking Prevention27 Aug 2026US 2026/0254829 A1Zscaler, Inc.
- Method and system for an in-network digital user to act on behalf of user preserving user privacy20 Aug 2026US 2026/0245081 A1Huawei Technologies Co., Ltd.
- Pseudo-random anonymization and storage of internet protocol (ip) addresses20 Aug 2026US 2026/0246764 A1Oracle International Corporation
Most cited
By later US patents
- System and method for providing anonymous personalized browsing by a proxy system in a network827US 5,961,593 ALucent Technologies Inc. · 1999
- System and method for protecting user privacy using social inference protection techniques348US 8,504,481 B2New Jersey Institute of Technology · 2013
- Remote medical device access325US 7,103,578 B2Roche Diagnostics Operations, Inc. · 2006
- Direct authentication and authorization system and method for trusted network of financial institutions323US 7,444,676 B12008
- Data anonymity and separation for user computation297US 8,930,896 B1Amazon Technologies, Inc. · 2015