H04L 2209/601
Broadcast encryption
H04L2209/601 (Broadcast encryption) appears on 376 US grants and 423 published applications in this corpus.
Search patents in H04L- Granted patents
- 376
- Published applications
- 423
- Assignees
- 208
- Inventors
- 850
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 7 |
| 2003 | 8 | 15 |
| 2004 | 3 | 11 |
| 2005 | 3 | 17 |
| 2006 | 7 | 28 |
| 2007 | 11 | 36 |
| 2008 | 10 | 33 |
| 2009 | 21 | 35 |
| 2010 | 20 | 27 |
| 2011 | 17 | 18 |
| 2012 | 19 | 34 |
| 2013 | 36 | 17 |
| 2014 | 42 | 18 |
| 2015 | 23 | 11 |
| 2016 | 19 | 11 |
| 2017 | 16 | 30 |
| 2018 | 10 | 17 |
| 2019 | 16 | 12 |
| 2020 | 14 | 11 |
| 2021 | 11 | 9 |
| 2022 | 14 | 7 |
| 2023 | 3 | 5 |
| 2024 | 8 | 4 |
| 2025 | 6 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multiple encryption key support for encrypted advertisement data18 Aug 2026US 12,712,862 B2QUALCOMM Incorporated
- Secure personal information exchange over C-V2X9 Jun 2026US 12,651,485 B2Ford Global Technologies, LLC
- Sharing cryptographic material19 May 2026US 12,634,136 B2PQShield Ltd
- Method for protecting payload data21 Oct 2025US 12,452,050 B2u-blox AG
- Secure layered encryption of data streams16 Sep 2025US 12,418,410 B2
- Enhanced ranging and positioning services in wireless networks6 Aug 2026US 2026/0231099 A1Koninklijke Philips N. V.
- Blockchain-enabled broadcast encryption28 May 2026US 2026/0149566 A1nChain Licensing AG
- Computer-implemented methods and systems for improved communications across a blockchain network12 Mar 2026US 2026/0074912 A1nChain Licensing AG
- Computer-implemented methods and systems for improved communications across a blockchain network5 Mar 2026US 2026/0067202 A1nChain Licensing AG
- Computer-implemented methods and systems for improved communications across a blockchain network5 Mar 2026US 2026/0067203 A1nChain Licensing AG
Most cited
By later US patents
- Multi-layer encryption system for the broadcast of encrypted information384US 4,531,020 AOak Industries Inc. · 1985
- Method and apparatus for creating a secure communication channel among multiple event service nodes305US 7,013,389 B1Cisco Technology, Inc. · 2006
- Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site218US 5,341,425 AScientific-Atlanta, Inc. · 1994
- Cryptographic system using interchangeable key blocks and selectable key fragments190US 4,694,491 AGeneral Instrument Corporation · 1987
- Method and apparatus for security in a data processing system169US 7,185,362 B2QUALCOMM Incorporated · 2007