H03K 19/0823
Multistate logic
Official title: {Multistate logic}
H03K19/0823 (Multistate logic) appears on 100 US grants and 12 published applications in this corpus.
Search patents in H03K- Granted patents
- 100
- Published applications
- 12
- Assignees
- 45
- Inventors
- 150
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 12 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 4 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blanking periods for safely executing external tristate requests17 Feb 2026US 12,556,185 B2Infineon Technologies AG
- Ternary logic element and ternary logic system including same17 Jun 2025US 12,334,922 B2Korea Advanced Institute of Science and Technology
- Level converter and a method for converting level values in vehicle control devices24 Nov 2020US 10,848,157 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Coil driver IC having a circuit capable of placing a coil connected output terminal into a floating state8 Aug 2017US 9,729,142 B2Zinitix Co., Ltd.
- Current mode logic circuit for high speed input/output applications16 Aug 2016US 9,419,593 B2Freescale Semiconductor, Inc.
- Blanking periods for safely executing external tristate requests6 Nov 2025US 2025/0343548 A1Infineon Technologies AG
- Ternary logic element and ternary logic system including same11 Jul 2024US 2024/0235554 A9Korea Advanced Institute of Science and Technology
- Ternary logic element and ternary logic system including same25 Apr 2024US 2024/0137024 A1Korea Advanced Institute of Science and Technology
- Semiconductor device, integrated circuit, and multi-valued logic device including the same19 Oct 2023US 2023/0335557 A1Samsung Electronics Co., Ltd.
- Level converter and a method for converting level values in vehicle control devices2 Jul 2020US 2020/0212913 A1KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
Most cited
By later US patents
- Tri-state type driver circuit33US 4,280,065 AHitachi, Ltd. · 1981
- Multi-level logic circuit32US 4,620,188 ADevelopment Finance Corporation of New Zealand · 1986
- Driver circuit employing high-speed tri-state for automatic test equipment24US 6,563,352 B1Teradyne, Inc. · 2003
- Device and method for binary-multilevel operation23US 5,471,156 AElectronics and Telecommunications Research Institute · 1995
- Transistor logic tristate output with feedback21US 4,255,670 AFairchild Camera and Instrument Corporation · 1981