G06F 21/556
Involving covert channels, i.e. data leakage between processes
Official title: {involving covert channels, i.e. data leakage between processes (inhibiting the analysis of circuitry or operation with measures against power attack G06F21/755)}
G06F21/556 (Involving covert channels, i.e. data leakage between processes) appears on 809 US grants and 900 published applications in this corpus.
Search patents in G06F- Granted patents
- 809
- Published applications
- 900
- Assignees
- 361
- Inventors
- 1,752
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 3 |
| 2003 | 0 | 13 |
| 2004 | 1 | 5 |
| 2005 | 6 | 5 |
| 2006 | 8 | 5 |
| 2007 | 5 | 12 |
| 2008 | 5 | 14 |
| 2009 | 8 | 21 |
| 2010 | 8 | 10 |
| 2011 | 13 | 23 |
| 2012 | 21 | 11 |
| 2013 | 24 | 15 |
| 2014 | 42 | 44 |
| 2015 | 30 | 41 |
| 2016 | 46 | 77 |
| 2017 | 37 | 41 |
| 2018 | 37 | 36 |
| 2019 | 57 | 80 |
| 2020 | 59 | 87 |
| 2021 | 70 | 81 |
| 2022 | 85 | 93 |
| 2023 | 70 | 59 |
| 2024 | 79 | 48 |
| 2025 | 54 | 46 |
| 2026 | 36 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Detecting and preventing frequency attacks22 Sep 2026US 12,743,507 B2NVIDIA Corporation
- Inference apparatus for performing inference with a machine learning model, inference method and computer-readable storage medium1 Sep 2026US 12,724,889 B2NEC Corporation
- Detection of information concealment and mitigation via introduction of deliberate variance11 Aug 2026US 12,706,926 B2Google Inc.
- Cyber recovery to compromised production environment using microsegmentation28 Jul 2026US 12,694,095 B1Unisys Corporation
- Mechanism to prevent leakage through side channels in cache memory21 Jul 2026US 12,688,285 B2NEC Corporation
- Data verification and protection scheme1 Oct 2026US 2026/0300551 A1
- Hardware-based method for enhancing resistance against side-channel attacks in a cryposystem20 Aug 2026US 2026/0244746 A1PQSecure Technologies, LLC
- Device and method for protecting information leakage from the bus6 Aug 2026US 2026/0228136 A1Avantix
- Secure ntt and intt6 Aug 2026US 2026/0228366 A1Microsoft Technology Licensing, LLC
- Endpoint agent and system30 Jul 2026US 2026/0222441 A1Darktrace Holdings Limited
Most cited
By later US patents
- Mitigating malware370US 8,370,938 B1Dasient, Inc. · 2013
- Selective removal of protected content from web requests sent to an interactive website273US 8,826,443 B1Symantec Corporation · 2014
- Packet threshold-mix batching dispatcher to counter traffic analysis246US 8,180,917 B1Trend Micro Incorporated · 2012
- Malicious content analysis with multi-version application support within single operating environment208US 9,626,509 B1FireEye, Inc. · 2017
- System and method for managing data loss due to policy violations in temporary files190US 7,991,747 B1Symantec Corporation · 2011