H04N 21/8358
Involving watermark
Official title: involving watermark {(protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467)}
H04N21/8358 (Involving watermark) appears on 2,123 US grants and 2,435 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,123
- Published applications
- 2,435
- Assignees
- 535
- Inventors
- 2,532
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 15 | 0 |
| 2000 | 15 | 0 |
| 2001 | 36 | 25 |
| 2002 | 28 | 85 |
| 2003 | 39 | 69 |
| 2004 | 48 | 73 |
| 2005 | 26 | 90 |
| 2006 | 56 | 89 |
| 2007 | 51 | 69 |
| 2008 | 61 | 95 |
| 2009 | 50 | 70 |
| 2010 | 81 | 88 |
| 2011 | 65 | 87 |
| 2012 | 84 | 80 |
| 2013 | 81 | 90 |
| 2014 | 103 | 189 |
| 2015 | 101 | 121 |
| 2016 | 113 | 110 |
| 2017 | 120 | 117 |
| 2018 | 116 | 116 |
| 2019 | 100 | 104 |
| 2020 | 112 | 141 |
| 2021 | 133 | 117 |
| 2022 | 131 | 115 |
| 2023 | 119 | 101 |
| 2024 | 100 | 83 |
| 2025 | 83 | 68 |
| 2026 | 35 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus to detect a presence status6 Oct 2026US 12,756,897 B2The Nielsen Company (US), LLC
- Methods and apparatus to determine sources of media presentations22 Sep 2026US 12,743,462 B2The Nielsen Company (US), LLC
- Systems and methods for causing a user to view secondary content that relates to a media asset from which a user has switched away22 Sep 2026US 12,744,948 B2Adeia Guides Inc.
- Synchronized interleaved watermarking25 Aug 2026US 12,720,133 B2Synamedia Limited
- System and method for channel change detection and overlay detection for a broadcast output25 Aug 2026US 12,720,157 B2Samba TV, Inc.
- Monitoring streaming media content8 Oct 2026US 2026/0312894 A1The Nielsen Company (US), LLC
- Methods and apparatus to identify media for ahead of time watermark encoding8 Oct 2026US 2026/0313182 A1The Nielsen Company (US), LLC
- Systems and Methods for Detecting Unauthorized Digital Video Stream Copying Using Unpredictable Temporal and Spatial Varying Watermark24 Sep 2026US 2026/0292312 A1Verimatrix, Inc.
- Methods and apparatus for affiliate interrupt detection17 Sep 2026US 2026/0281477 A1The Nielsen Company (US), LLC
- Systems and method for providing video on demand in an intelligent television6 Aug 2026US 2026/0227864 A1Multimedia Technologies Pte, Ltd
Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection1,270US 5,982,891 AIntertrust Technologies Corporation · 1999
- Systems and methods for secure transaction management and electronic rights protection1,156US 5,910,987 AIntertrust Technologies Corporation · 1999
- Computer system linked by using information in data objects1,131US 6,122,403 ADigimarc Corporation · 2000
- Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels1,021US 5,943,422 AIntertrust Technologies Corporation · 1999
- Trusted and secure techniques, systems and methods for item delivery and execution944US 6,185,683 B2Intertrust Technologies Corporation · 2001