H04L 9/0822
Using key encryption key
Official title: {using key encryption key}
H04L9/0822 (Using key encryption key) appears on 3,040 US grants and 3,320 published applications in this corpus.
Search patents in H04L- Granted patents
- 3,040
- Published applications
- 3,320
- Assignees
- 1,068
- Inventors
- 5,937
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 8 |
| 2002 | 12 | 21 |
| 2003 | 7 | 42 |
| 2004 | 8 | 34 |
| 2005 | 10 | 59 |
| 2006 | 22 | 58 |
| 2007 | 31 | 91 |
| 2008 | 38 | 75 |
| 2009 | 38 | 74 |
| 2010 | 56 | 75 |
| 2011 | 45 | 63 |
| 2012 | 84 | 85 |
| 2013 | 94 | 100 |
| 2014 | 145 | 147 |
| 2015 | 127 | 126 |
| 2016 | 166 | 172 |
| 2017 | 153 | 207 |
| 2018 | 156 | 222 |
| 2019 | 236 | 219 |
| 2020 | 251 | 273 |
| 2021 | 203 | 226 |
| 2022 | 254 | 196 |
| 2023 | 257 | 231 |
| 2024 | 226 | 194 |
| 2025 | 215 | 197 |
| 2026 | 124 | 125 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Function-based service framework based on trusted execution environment29 Sep 2026US 12,748,862 B2Dell Products L. P.
- Authentication method and apparatus of biometric payment device, computer device, and storage medium29 Sep 2026US 12,749,074 B2Tencent Technology (Shenzhen) Company Limited
- Cluster encryption during deployment29 Sep 2026US 12,750,209 B2VMware, Inc.
- System, method, and computer program for backing up a sensitive field in a data object in a storage system using an external backup system without enabling the external backup system to view the data in the sensitive field22 Sep 2026US 12,744,660 B1Odaseva Technologies SAS
- Lightweight encryption22 Sep 2026US 12,744,766 B2Microsoft Technology Licensing, LLC
- Data transfer between two data processing units8 Oct 2026US 2026/0310804 A1Siemens Aktiengesellschaft
- Ciphertext header-based data security8 Oct 2026US 2026/0312789 A1T-Mobile Innovations LLC
- Signal processing device and vehicle display apparatus including same17 Sep 2026US 2026/0277648 A1LG Electronics Inc.
- Providing random numbers over an insecure channel using disguised cyphertexts17 Sep 2026US 2026/0280848 A1Symmatrics, Inc.
- System and Method to Perform Passwordless Authentication Operations Offline17 Sep 2026US 2026/0280852 A1Cisco Technology, Inc.
Most cited
By later US patents
- Electronic content delivery system1,734US 6,226,618 B1International Business Machines Corporation · 2001
- System for controlling access and distribution of digital property1,018US 5,933,498 AMRJ, Inc. · 1999
- Method and system for multimedia access control enablement785US 5,319,705 AInternational Business Machines Corporation · 1994
- System for tracking end-user electronic content usage705US 6,389,538 B1International Business Machines Corporation · 2002
- System for controlling access and distribution of digital property681US 6,314,409 B1Veridian Information Solutions, Inc. · 2001