H04L 63/0442
Wherein the sending and receiving network entities apply asymmetric encryption, i.e. different
Official title: {wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption (cryptographic mechanisms or cryptographic arrangements for public-key encryption H04L9/30)}
H04L63/0442 (Wherein the sending and receiving network entities apply asymmetric encryption, i.e. different) appears on 3,949 US grants and 4,429 published applications in this corpus.
Search patents in H04L- Granted patents
- 3,949
- Published applications
- 4,429
- Assignees
- 1,456
- Inventors
- 7,126
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 22 | 0 |
| 2000 | 33 | 0 |
| 2001 | 41 | 40 |
| 2002 | 36 | 173 |
| 2003 | 24 | 134 |
| 2004 | 37 | 107 |
| 2005 | 72 | 140 |
| 2006 | 110 | 114 |
| 2007 | 68 | 110 |
| 2008 | 77 | 91 |
| 2009 | 78 | 85 |
| 2010 | 91 | 80 |
| 2011 | 82 | 75 |
| 2012 | 96 | 111 |
| 2013 | 111 | 76 |
| 2014 | 111 | 112 |
| 2015 | 113 | 137 |
| 2016 | 151 | 234 |
| 2017 | 204 | 263 |
| 2018 | 204 | 301 |
| 2019 | 269 | 300 |
| 2020 | 289 | 336 |
| 2021 | 314 | 329 |
| 2022 | 336 | 336 |
| 2023 | 306 | 271 |
| 2024 | 312 | 217 |
| 2025 | 233 | 167 |
| 2026 | 104 | 90 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods for identifying the operator of transmitted frames and for checking operator membership, communication device and communication gateway1 Oct 2026US 2026/0304085 A1Orange
- Secure ai operations24 Sep 2026US 2026/0291925 A101 Quantum Inc.
- Method and Apparatus for Generating Key Generation Information for a Digital Access Key for a Motor Vehicle17 Sep 2026US 2026/0274206 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Determining the visibility to a remote database client2,367US 6,233,617 B1Siebel Systems, Inc. · 2001
- System and method for secure three-party communications1,364US 8,316,237 B12012
- 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
- System for controlling the distribution and use of composite digital works982US 5,638,443 AXerox Corporation · 1997