H04N 1/32272
Encryption or ciphering
Official title: {Encryption or ciphering}
H04N1/32272 (Encryption or ciphering) appears on 138 US grants and 154 published applications in this corpus.
Search patents in H04N- Granted patents
- 138
- Published applications
- 154
- Assignees
- 84
- Inventors
- 227
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 4 |
| 2003 | 2 | 6 |
| 2004 | 1 | 5 |
| 2005 | 2 | 0 |
| 2006 | 6 | 8 |
| 2007 | 3 | 7 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 5 | 10 |
| 2011 | 5 | 4 |
| 2012 | 5 | 8 |
| 2013 | 10 | 6 |
| 2014 | 11 | 9 |
| 2015 | 8 | 7 |
| 2016 | 6 | 13 |
| 2017 | 9 | 12 |
| 2018 | 12 | 11 |
| 2019 | 14 | 10 |
| 2020 | 4 | 8 |
| 2021 | 7 | 8 |
| 2022 | 7 | 5 |
| 2023 | 6 | 3 |
| 2024 | 6 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Halftone screens encoding signatures21 Apr 2026US 12,610,019 B2Hewlett-Packard Development Company, L. P.
- Communication apparatus capable of receiving predetermined information for connecting to an external access point from an information processing apparatus having read a predetermined two-dimensional code, control method, and storage medium therefor11 Nov 2025US 12,471,009 B2Canon Kabushiki Kaisha
- Digitally watermarking resources produced by an online software platform based on applying one or more resource digital rules12 Aug 2025US 12,388,941 B1Avalara, Inc.
- System and method of digital steganography21 Jan 2025US 12,206,759 B1Systems & Technology Research, LLC
- Picture encryption method and apparatus, computer device, storage medium and program product10 Dec 2024US 12,166,941 B2Tencent Technology (Shenzhen) Company Limited
- Systems and methods for encoding information in documents18 Jun 2026US 2026/0172522 A1Xerox Corporation
- Information processing apparatus, control method therefor, and storage medium5 Feb 2026US 2026/0040199 A1Canon Kabushiki Kaisha
- Image processing apparatus, image processing method, and storage medium26 Jun 2025US 2025/0211696 A1Canon Kabushiki Kaisha
- Method and system for processing digital content, method and system for confirming copyright of digital content, and method and system for tracing digital content5 Jun 2025US 2025/0181683 A1Huawei Technologies Co., Ltd.
- Process of signing documents14 Nov 2024US 2024/0380856 A1Freshape SA
Most cited
By later US patents
- Secure distribution of digital representations292US 6,141,753 AFraunhofer-Gesellschaft · 2000
- Method and apparatus for watermarking digital bitstreams275US 6,330,672 B1AT&T Corp. · 2001
- Electronic watermark system electronic information distribution system and image filing apparatus264US 6,425,081 B1Canon Kabushiki Kaisha · 2002
- Forensic communication apparatus and method172US 6,996,251 B2Myport Technologies, Inc. · 2006
- Electronic watermarking in the compressed domain utilizing perceptual coding159US 6,493,457 B1AT&T Corp. · 2002