H03K 17/81
Switching arrangements with several input- or output-terminals
Official title: Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors (logic circuits H03K19/00; code converters H03M5/00, H03M7/00)
H03K17/81 (Switching arrangements with several input- or output-terminals) appears on 9 US grants and 6 published applications in this corpus.
Search patents in H03K- Granted patents
- 9
- Published applications
- 6
- Assignees
- 9
- Inventors
- 18
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heterogeneous solid state transformers with hierarchical control12 May 2026US 12,627,294 B1National Technology & Engineering Solutions of Sandia, LLC
- Topological insulator-based multiplexer/demultiplexer1 Apr 2025US 12,267,066 B2Georgia Tech Research Corporation
- Temperature-controlled driver with built-in self testing of switch status18 Mar 2025US 12,255,649 B2Murata Manufacturing Co., Ltd.
- Forwarding element integrated circuit chip with separate I/O and switching tiles24 Mar 2020US 10,599,603 B1Barefoot Networks, Inc.
- Protection switching for matrix of ferrite modules with redundant control16 Jan 2018US 9,871,511 B2Honeywell International Inc.
- Temperature-controlled driver with built-in self testing of switch status25 Sep 2025US 2025/0300637 A1Murata Manufacturing Co., Ltd.
- Temperature-controlled driver with built-in self testing of switch status28 Mar 2024US 2024/0106420 A1pSemi Corporation
- Topological insulator-based multiplexer/demultiplexer30 Mar 2023US 2023/0101350 A1Georgia Tech Research Corporation
- Forwarding element integrated circuit chip with separate i/o and switching tiles20 Aug 2020US 2020/0265002 A1Barefoot Networks, Inc.
- Protection switching for matrix of ferrite modules with redundant control7 Jan 2016US 2016/0006431 A1Honeywell International Inc.
Most cited
By later US patents
- N-Key rollover keyboard7US 4,517,553 AIllinois Tool Works Inc. · 1985
- Forwarding element integrated circuit chip with separate I/O and switching tiles4US 10,599,603 B1Barefoot Networks, Inc. · 2020
- Keyboard with electronic hysteresis3US 4,390,866 AIllinois Tool Works Inc. · 1983
- Microwave power reflector using edge-guided mode2US 3,968,458 AThe United States of America as represented by the Secretary of the Army · 1976
- Protection switching for matrix of ferrite modules with redundant control2US 9,871,511 B2Honeywell International Inc. · 2018