H04L 9/0894
Escrow, recovery or storing of secret information
Official title: {Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage}
H04L9/0894 (Escrow, recovery or storing of secret information) appears on 8,027 US grants and 9,197 published applications in this corpus.
Search patents in H04L- Granted patents
- 8,027
- Published applications
- 9,197
- Assignees
- 2,388
- Inventors
- 14,802
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 15 | 0 |
| 1998 | 24 | 0 |
| 1999 | 14 | 0 |
| 2000 | 15 | 0 |
| 2001 | 23 | 6 |
| 2002 | 14 | 49 |
| 2003 | 15 | 50 |
| 2004 | 15 | 44 |
| 2005 | 36 | 68 |
| 2006 | 36 | 99 |
| 2007 | 52 | 120 |
| 2008 | 42 | 138 |
| 2009 | 49 | 125 |
| 2010 | 85 | 147 |
| 2011 | 96 | 177 |
| 2012 | 138 | 159 |
| 2013 | 159 | 186 |
| 2014 | 231 | 187 |
| 2015 | 214 | 209 |
| 2016 | 224 | 270 |
| 2017 | 263 | 386 |
| 2018 | 285 | 494 |
| 2019 | 462 | 813 |
| 2020 | 698 | 1041 |
| 2021 | 916 | 1113 |
| 2022 | 998 | 943 |
| 2023 | 932 | 816 |
| 2024 | 840 | 674 |
| 2025 | 735 | 492 |
| 2026 | 344 | 391 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for region-specific sub-tokenization in cryptographic transaction processing6 Oct 2026US 12,754,690 B2Vannadium, Inc.
- Secure virtualized cryptographic subsystems for autonomous systems and applications6 Oct 2026US 12,754,756 B2NVIDIA Corporation
- Key server and storage deadlock control6 Oct 2026US 12,754,780 B2International Business Machines Corporation
- Protection of a circuit design within a design container6 Oct 2026US 12,755,059 B2Xilinx, Inc.
- Communication signal controller architecture for deploying multimodal conversational interfaces6 Oct 2026US 12,756,555 B1Citibank, N. A.
- Distributed digital wallet seed phrase8 Oct 2026US 2026/0312802 A1Solana Mobile Inc.
- Methods and systems for generating, subscribing to and processing action plans using a blockchain8 Oct 2026US 2026/0312803 A1
- Key ceremony in multi-party computation8 Oct 2026US 2026/0312824 A1Blockdaemon Inc.
- Privacy-preserving aggregation1 Oct 2026US 2026/0303330 A1Roseman Group B.V.
- Cryptographic service provider api with non-native key emulation1 Oct 2026US 2026/0303343 A1International Business Machines Corporation
Most cited
By later US patents
- Database usage metering and protection system and method843US 5,410,598 AElectronic Publishing Resources, Inc. · 1995
- Method and system for multimedia access control enablement785US 5,319,705 AInternational Business Machines Corporation · 1994
- Database usage metering and protection system and method766US 5,050,213 AElectronic Publishing Resources, Inc. · 1991
- Method of authenticating game data sets in an electronic casino gaming system747US 6,149,522 ASilicon Gaming - Nevada · 2000
- System and method for secure and reliable multi-cloud data replication579US 8,762,642 B2Twinstrata, Inc · 2014