H04L 27/2603
Signal structure ensuring backward compatibility with legacy system
Official title: {Signal structure ensuring backward compatibility with legacy system}
H04L27/2603 (Signal structure ensuring backward compatibility with legacy system) appears on 998 US grants and 1,222 published applications in this corpus.
Search patents in H04L- Granted patents
- 998
- Published applications
- 1,222
- Assignees
- 128
- Inventors
- 940
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 3 |
| 2004 | 2 | 3 |
| 2005 | 0 | 9 |
| 2006 | 3 | 11 |
| 2007 | 3 | 12 |
| 2008 | 3 | 7 |
| 2009 | 7 | 18 |
| 2010 | 13 | 14 |
| 2011 | 11 | 23 |
| 2012 | 14 | 33 |
| 2013 | 14 | 25 |
| 2014 | 40 | 43 |
| 2015 | 39 | 49 |
| 2016 | 52 | 92 |
| 2017 | 67 | 105 |
| 2018 | 66 | 90 |
| 2019 | 112 | 104 |
| 2020 | 106 | 100 |
| 2021 | 105 | 85 |
| 2022 | 62 | 77 |
| 2023 | 79 | 95 |
| 2024 | 101 | 68 |
| 2025 | 70 | 86 |
| 2026 | 22 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Repeating for low-overhead communication in a network162US 9,326,316 B2QUALCOMM Incorporated · 2016
- PHY frame formats in a system with more than four space-time streams139US 8,437,440 B1Marvell International Ltd. · 2013
- Communication system137US 5,600,672 AMatsushita Electric Industrial Co., Ltd. · 1997
- Communication system122US 5,802,241 AMatsushita Electric Industrial Co., Ltd. · 1998
- Physical layer frame format for long range WLAN116US 8,867,653 B2Marvell World Trade Ltd. · 2014