H04L 9/0637
Modes of operation
Official title: {Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]}
H04L9/0637 (Modes of operation) appears on 4,178 US grants and 4,775 published applications in this corpus.
Search patents in H04L- Granted patents
- 4,178
- Published applications
- 4,775
- Assignees
- 1,291
- Inventors
- 6,392
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 4 |
| 2002 | 3 | 10 |
| 2003 | 4 | 13 |
| 2004 | 4 | 29 |
| 2005 | 10 | 20 |
| 2006 | 15 | 20 |
| 2007 | 16 | 37 |
| 2008 | 22 | 36 |
| 2009 | 21 | 29 |
| 2010 | 32 | 43 |
| 2011 | 25 | 29 |
| 2012 | 36 | 31 |
| 2013 | 40 | 26 |
| 2014 | 42 | 32 |
| 2015 | 46 | 48 |
| 2016 | 38 | 58 |
| 2017 | 58 | 105 |
| 2018 | 85 | 235 |
| 2019 | 211 | 787 |
| 2020 | 487 | 1318 |
| 2021 | 745 | 757 |
| 2022 | 787 | 358 |
| 2023 | 583 | 292 |
| 2024 | 415 | 232 |
| 2025 | 270 | 137 |
| 2026 | 120 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Computer-implemented systems and methods for linking a blockchain to a digital twin6 Oct 2026US 12,756,569 B2nChain Licensing AG
- Technologies for trusted I/O with a channel identifier filter and processor-based cryptographic engine15 Sep 2026US 12,737,480 B2Intel Corporation
- Hierarchical blockchain architecture for global trade management15 Sep 2026US 12,737,712 B2Questaweb Holdings Inc.
- Computer-implemented system and method for trustless zero-knowledge contingent payment15 Sep 2026US 12,737,753 B2nChain Licensing AG
- Method for encrypting plain text15 Sep 2026US 12,739,097 B2Mercedes-Benz Group AG
- Systems and methods for multi-entity blockchain-based event break prevention8 Oct 2026US 2026/0311172 A1Citibank, N. A.
- Computer system for providing payments, incentives, and fraud protection within or across industries8 Oct 2026US 2026/0311209 A1Pay With Spire, Inc.
- Health data exchange platform8 Oct 2026US 2026/0311858 A1Youngblood IP Holdings, LLC
- Digital content integrity verification systems and methods1 Oct 2026US 2026/0300264 A1Intertrust Technologies Corporation
- Continuously monitoring and updating mortgage ready data1 Oct 2026US 2026/0301030 A1State Farm Mutual Automobile Insurance Company
Most cited
By later US patents
- Method and system for multimedia access control enablement785US 5,319,705 AInternational Business Machines Corporation · 1994
- Secure communication architecture for medical devices493US 9,980,140 B1Bigfoot Biomedical, Inc. · 2018
- Data compression, encryption, and in-line transmission system339US 4,386,416 AMostek Corporation · 1983
- Stream/block cipher crytographic system248US 4,316,055 AInternational Business Machines Corporation · 1982
- Selective data encryption using style sheet processing245US 6,931,532 B1International Business Machines Corporation · 2005