G06F 13/4022
Using switching circuits
Official title: {using switching circuits, e.g. switching matrix, connection or expansion network (G06F13/4009 takes precedence)}
G06F13/4022 (Using switching circuits) appears on 4,640 US grants and 4,979 published applications in this corpus.
Search patents in G06F- Granted patents
- 4,640
- Published applications
- 4,979
- Assignees
- 1,125
- Inventors
- 8,239
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 11 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 22 | 0 |
| 1996 | 24 | 0 |
| 1997 | 39 | 0 |
| 1998 | 58 | 0 |
| 1999 | 49 | 0 |
| 2000 | 31 | 0 |
| 2001 | 37 | 13 |
| 2002 | 25 | 38 |
| 2003 | 38 | 38 |
| 2004 | 32 | 69 |
| 2005 | 37 | 73 |
| 2006 | 55 | 68 |
| 2007 | 42 | 73 |
| 2008 | 52 | 99 |
| 2009 | 75 | 76 |
| 2010 | 88 | 93 |
| 2011 | 94 | 112 |
| 2012 | 93 | 138 |
| 2013 | 115 | 174 |
| 2014 | 149 | 258 |
| 2015 | 189 | 297 |
| 2016 | 239 | 386 |
| 2017 | 321 | 431 |
| 2018 | 396 | 435 |
| 2019 | 463 | 328 |
| 2020 | 380 | 269 |
| 2021 | 268 | 251 |
| 2022 | 243 | 257 |
| 2023 | 251 | 244 |
| 2024 | 268 | 218 |
| 2025 | 219 | 197 |
| 2026 | 133 | 344 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Storage router and method for providing virtual local storage495US 5,941,972 ACrossroads Systems, Inc. · 1999
- Computing in parallel processing environments463US 8,738,860 B1Tilera Corporation · 2014
- TCP/IP offload network interface device370US 6,434,620 B1Alacritech, Inc. · 2002
- Storage router and method for providing virtual local storage282US 6,425,035 B1Crossroads Systems, Inc. · 2002
- Method and means for path independent device reservation and reconnection in a multi-CPU and shared device access system271US 4,207,609 AInternational Business Machines Corporation · 1980