H04L 63/0435
Wherein the sending and receiving network entities apply symmetric encryption, i.e. same
Official title: {wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption (cryptographic mechanisms or cryptographic arrangements for symmetric key encryption H04L9/06)}
H04L63/0435 (Wherein the sending and receiving network entities apply symmetric encryption, i.e. same) appears on 3,259 US grants and 3,643 published applications in this corpus.
Search patents in H04L- Granted patents
- 3,259
- Published applications
- 3,643
- Assignees
- 1,281
- Inventors
- 6,179
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 5 |
| 2002 | 10 | 34 |
| 2003 | 8 | 41 |
| 2004 | 14 | 50 |
| 2005 | 12 | 54 |
| 2006 | 23 | 51 |
| 2007 | 30 | 43 |
| 2008 | 38 | 43 |
| 2009 | 33 | 43 |
| 2010 | 33 | 35 |
| 2011 | 37 | 39 |
| 2012 | 41 | 69 |
| 2013 | 54 | 84 |
| 2014 | 95 | 112 |
| 2015 | 112 | 170 |
| 2016 | 154 | 228 |
| 2017 | 209 | 304 |
| 2018 | 189 | 257 |
| 2019 | 289 | 260 |
| 2020 | 285 | 316 |
| 2021 | 280 | 267 |
| 2022 | 295 | 294 |
| 2023 | 303 | 288 |
| 2024 | 287 | 211 |
| 2025 | 242 | 219 |
| 2026 | 144 | 126 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Encrypted search cloud service with cryptographic sharing29 Sep 2026US 12,748,882 B2Google Inc.
- Edge/cloud reversal security check29 Sep 2026US 12,750,349 B2Lenovo Enterprise Solutions (Singapore) Pte.Ltd.
- Secure tunnel access to remotely executed tools for artificial intelligence agents29 Sep 2026US 12,750,368 B1Airia LLC
- Method for cooperatively filtering data traffic in a communication network8 Oct 2026US 2026/0312935 A1
- Encrypted interstitial techniques for web security8 Oct 2026US 2026/0312976 A1F5, Inc.
- Methods for generating an action based on tls parameters and devices thereof1 Oct 2026US 2026/0303662 A1F5, Inc.
- Centralized compliance management platform for security objects1 Oct 2026US 2026/0303671 A1Entrust Corporation
- Governance of AI-Directed Tiered Post Quantum Protection of Multimodal Data24 Sep 2026US 2026/0291712 A1University of Central Florida Research Foundation, Inc.
Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection1,270US 5,982,891 AIntertrust Technologies Corporation · 1999
- Systems and methods for secure transaction management and electronic rights protection1,156US 5,910,987 AIntertrust Technologies Corporation · 1999
- Electronic document delivery system in which notification of said electronic document is sent to a recipient thereof1,055US 5,790,790 ATumbleweed Software Corporation · 1998
- Trusted and secure techniques, systems and methods for item delivery and execution944US 6,185,683 B2Intertrust Technologies Corporation · 2001
- Systems and methods for the secure transaction management and electronic rights protection933US 6,253,193 B1Intertrust Technologies Corporation · 2001