H04N 2201/323
For tracing or tracking
Official title: for tracing or tracking, e.g. forensic tracing of unauthorized copies
H04N2201/323 (For tracing or tracking) appears on 132 US grants and 143 published applications in this corpus.
Search patents in H04N- Granted patents
- 132
- Published applications
- 143
- Assignees
- 58
- Inventors
- 217
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 4 |
| 2002 | 1 | 5 |
| 2003 | 6 | 6 |
| 2004 | 4 | 4 |
| 2005 | 2 | 10 |
| 2006 | 5 | 7 |
| 2007 | 7 | 11 |
| 2008 | 9 | 16 |
| 2009 | 7 | 18 |
| 2010 | 11 | 10 |
| 2011 | 13 | 9 |
| 2012 | 11 | 10 |
| 2013 | 17 | 11 |
| 2014 | 9 | 6 |
| 2015 | 4 | 4 |
| 2016 | 11 | 5 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Image processing circuitry and image processing method21 Jan 2025US 12,206,828 B2Sony Semiconductor Solutions Corporation
- Incorporation of source-identifying information in scanned documents7 May 2024US 11,979,537 B1Xerox Corporation
- Hardware integration for part tracking using texture extraction and networked distributed ledgers3 Jan 2023US 11,544,722 B2Raytheon Company
- Methods and systems for using halftone screening for security markings and other graphics29 Nov 2022US 11,516,362 B1Global Graphics Software Limited
- Document state management system, document state management method, and non-transitory computer-readable medium24 Mar 2020US 10,602,023 B2Ricoh Company, Ltd.
- Image processing circuitry and image processing method31 Aug 2023US 2023/0276146 A1Sony Semiconductor Solutions Corporation
- Bayer image detection method and device, and machine readable storage medium8 Jul 2021US 2021/0211626 A1Sz Dji Technology Co., Ltd.
- Hardware integration for part tracking using texture extraction and networked distributed ledgers24 Sep 2020US 2020/0302449 A1Raytheon Company
- Document state management system, document state management method, and non-transitory computer-readable medium11 Apr 2019US 2019/0109962 A1Ricoh Company, Ltd.
- Creation device, computer program product, recognition system, and creation method13 Sep 2018US 2018/0260666 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Methods for surveying dissemination of proprietary empirical data1,132US 5,862,260 ADigimarc Corporation · 1999
- Computer system linked by using information in data objects1,131US 6,122,403 ADigimarc Corporation · 2000
- Watermark embedder and reader942US 6,614,914 B1Digimarc Corporation · 2003
- Secure distribution of digital representations292US 6,141,753 AFraunhofer-Gesellschaft · 2000
- Digital data authentication method253US 6,131,162 AHitachi, Ltd. · 2000