H04L 15/04
Apparatus or circuits at the transmitting end
H04L15/04 (Apparatus or circuits at the transmitting end) appears on 25 US grants and 22 published applications in this corpus.
Search patents in H04L- Granted patents
- 25
- Published applications
- 22
- Assignees
- 21
- Inventors
- 51
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 3 | 2 |
| 2015 | 0 | 1 |
| 2016 | 3 | 3 |
| 2017 | 3 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 3 |
| 2025 | 3 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recursive bitstring structure addressing18 Aug 2026US 12,712,810 B2Huawei Technologies Co., Ltd.
- Differentiating between human interaction and computer interaction using a natural perception of human eyes to identify human users14 Jul 2026US 12,683,965 B1Gen Digital Inc.
- Establishing a communication session using a handshake process with light signals23 Dec 2025US 12,506,540 B2Maplebear Inc.
- Time-domain physical unclonable key (TPUK) authenticated communication11 Nov 2025US 12,470,411 B2Universiteit Twente (Ut)
- Systems and methods for use in blocking network traffic20 May 2025US 12,309,157 B2Mastercard Technologies Canada Ulc
- Establishing a communication session using a handshake process with light signals29 Aug 2024US 2024/0289856 A1Maplebear, Inc.(dba Instacart)
- Recursive bitstring structure addressing22 Aug 2024US 2024/0283740 A1Huawei Technologies Co., Ltd.
- Systems and methods for use in blocking network traffic11 Jan 2024US 2024/0015159 A1Mastercard Technologies Canada Ulc
- Time-domain physical unclonable key (tpuk) authenticated communication23 Mar 2023US 2023/0089344 A1Universiteit Twente
- Multi-cast support for a virtual network12 May 2022US 2022/0150156 A1Microsoft Technology Licensing, LLC
Most cited
By later US patents
- Managing operational throughput for shared resources43US 8,694,400 B1Amazon Technologies, Inc. · 2014
- Social authentication for account recovery32US 10,013,728 B2Microsoft Technology Licensing, LLC · 2018
- Social authentication for account recovery28US 8,856,879 B2Microsoft Corporation · 2014
- Managing operational throughput for shared resources5US 9,374,243 B1Amazon Technologies, Inc. · 2016
- Mechanism to transmit text messages using ring time3US 9,780,968 B2International Business Machines Corporation · 2017