H03K 3/2893
Bistables with hysteresis
Official title: Bistables with hysteresis, e.g. Schmitt trigger
H03K3/2893 (Bistables with hysteresis) appears on 79 US grants and 11 published applications in this corpus.
Search patents in H03K- Granted patents
- 79
- Published applications
- 11
- Assignees
- 49
- Inventors
- 124
- Latest grant
- 20 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 3 |
| 2024 | 4 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Laboratory equipment with flammable refrigerant20 Feb 2024US 11,909,398 B2Eppendorf AG
- Schmitt trigger with current assistance circuit13 Feb 2024US 11,901,900 B2STMicroelectronics International N. V.
- Schmitt trigger circuit6 Feb 2024US 11,894,849 B2Ablic Inc.
- Schmitt trigger circuit having mismatched input and supply23 Jan 2024US 11,881,859 B2Texas Instruments Incorporated
- Current-mode square wave oscillator31 May 2022US 11,349,435 B1King Fahd University of Petroleum and Minerals
- Schmitt trigger circuit having mismatched input and supply23 Nov 2023US 2023/0378942 A1Texas Instruments Incorporated
- Laboratory Equipment With Flammable Refrigerant25 May 2023US 2023/0163752 A1Eppendorf AG
- Schmitt trigger circuit25 May 2023US 2023/0163753 A1Ablic Inc.
- Schmitt trigger with current assistance circuit29 Dec 2022US 2022/0416768 A1STMicroelectronics International N. V.
- Zero-crossing detection circuit for a dimmer circuit25 May 2017US 2017/0150566 A1Gerard Lighting Holdings Pty Ltd
Most cited
By later US patents
- Hysteresis circuit75US 4,485,312 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Schmitt trigger circuit having mismatched input and supply44US 11,881,859 B2Texas Instruments Incorporated · 2024
- Low standby current comparator having a zero temperature coefficient with hysterisis38US 5,077,491 AMotorola, Inc. · 1991
- CMOS comparator output circuit with high gain and hysteresis31US 5,945,852 AMotorola, Inc. · 1999
- Frequency divider, a phase lock oscillator and a flip-flop circuit using the frequency divider31US 6,285,262 B1Kabushiki Kaisha Toshiba · 2001