H04L 1/1621
Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers
Official title: {Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers}
H04L1/1621 (Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers) appears on 746 US grants and 894 published applications in this corpus.
Search patents in H04L- Granted patents
- 746
- Published applications
- 894
- Assignees
- 204
- Inventors
- 1,281
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 4 |
| 2003 | 5 | 8 |
| 2004 | 5 | 6 |
| 2005 | 3 | 7 |
| 2006 | 7 | 9 |
| 2007 | 1 | 8 |
| 2008 | 3 | 16 |
| 2009 | 9 | 16 |
| 2010 | 13 | 29 |
| 2011 | 19 | 29 |
| 2012 | 21 | 28 |
| 2013 | 23 | 30 |
| 2014 | 29 | 29 |
| 2015 | 40 | 44 |
| 2016 | 34 | 54 |
| 2017 | 40 | 51 |
| 2018 | 38 | 55 |
| 2019 | 52 | 65 |
| 2020 | 68 | 73 |
| 2021 | 56 | 82 |
| 2022 | 55 | 77 |
| 2023 | 60 | 70 |
| 2024 | 73 | 39 |
| 2025 | 52 | 39 |
| 2026 | 28 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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By later US patents
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