H04L 1/1657
Implicit acknowledgement of correct or incorrect reception
Official title: {Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window}
H04L1/1657 (Implicit acknowledgement of correct or incorrect reception) appears on 317 US grants and 332 published applications in this corpus.
Search patents in H04L- Granted patents
- 317
- Published applications
- 332
- Assignees
- 130
- Inventors
- 649
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 5 |
| 2003 | 3 | 5 |
| 2004 | 1 | 4 |
| 2005 | 3 | 5 |
| 2006 | 6 | 2 |
| 2007 | 6 | 7 |
| 2008 | 1 | 4 |
| 2009 | 2 | 5 |
| 2010 | 2 | 10 |
| 2011 | 5 | 6 |
| 2012 | 13 | 11 |
| 2013 | 6 | 8 |
| 2014 | 12 | 19 |
| 2015 | 21 | 17 |
| 2016 | 20 | 18 |
| 2017 | 17 | 13 |
| 2018 | 13 | 29 |
| 2019 | 16 | 38 |
| 2020 | 35 | 31 |
| 2021 | 29 | 21 |
| 2022 | 31 | 30 |
| 2023 | 15 | 11 |
| 2024 | 22 | 15 |
| 2025 | 13 | 12 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods and procedures for subcarrier spacing for downlink shared channel transmission10 Sep 2026US 2026/0269985 A1InterDigital Patent Holdings, Inc.
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Most cited
By later US patents
- On/off keying node-to-node messaging transceiver network with dynamic routing and configuring438US 7,027,773 B1AFX Technology Group International, Inc. · 2006
- Hybrid automatic repeat request (HARQ) scheme with in-sequence delivery of packets74US 7,310,336 B22007
- Communications system and method for interconnected networks having a linear topology, especially railways71US 6,400,281 B12002
- Method and apparatus for synchronizing encrypting and decrypting systems68US 4,754,482 ASamco Investment Company · 1988
- Communication system capable of detecting missed messages66US 5,377,188 AKabushiki Kaisha Toshiba · 1994