H03K 3/0231
Astable circuits
Official title: Astable circuits {(H03K3/0315 takes precedence)}
H03K3/0231 (Astable circuits) appears on 948 US grants and 549 published applications in this corpus.
Search patents in H03K- Granted patents
- 948
- Published applications
- 549
- Assignees
- 407
- Inventors
- 1,510
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 12 | 0 |
| 1995 | 33 | 0 |
| 1996 | 32 | 0 |
| 1997 | 40 | 0 |
| 1998 | 29 | 0 |
| 1999 | 39 | 0 |
| 2000 | 38 | 0 |
| 2001 | 33 | 3 |
| 2002 | 29 | 28 |
| 2003 | 26 | 20 |
| 2004 | 23 | 24 |
| 2005 | 29 | 30 |
| 2006 | 28 | 22 |
| 2007 | 22 | 18 |
| 2008 | 11 | 16 |
| 2009 | 21 | 5 |
| 2010 | 13 | 14 |
| 2011 | 14 | 14 |
| 2012 | 15 | 20 |
| 2013 | 12 | 31 |
| 2014 | 38 | 24 |
| 2015 | 30 | 26 |
| 2016 | 32 | 26 |
| 2017 | 23 | 28 |
| 2018 | 19 | 22 |
| 2019 | 27 | 27 |
| 2020 | 46 | 27 |
| 2021 | 18 | 16 |
| 2022 | 21 | 17 |
| 2023 | 23 | 20 |
| 2024 | 26 | 24 |
| 2025 | 22 | 29 |
| 2026 | 13 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Programmable voltage to time converter25 Aug 2026US 12,719,492 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Accurate delay generator and accurate oscillator18 Aug 2026US 12,712,527 B1
- Magnetoresistive relaxation oscillator type magnetometer11 Aug 2026US 12,704,566 B2MultiDimension Technology Co., Ltd.
- Parasitic capacitance mitigation circuit for relaxation oscillators4 Aug 2026US 12,700,851 B2University of Utah Research Foundation
- Frequency spread spectrum (FSS) oscillator23 Jun 2026US 12,663,822 B2Texas Instruments Incorporated
- Clock generating mechanism capable of mitigating clock glitches of digital circuit by selecting good/better timing to output received frequency control signal10 Sep 2026US 2026/0269812 A1Pixart Imaging Inc.
- Accurate Delay generator and Accurate Oscillator20 Aug 2026US 2026/0246453 A1
- Voltage-controlled rc oscillator and method for generating a clock signal30 Jul 2026US 2026/0221939 A1
- Oscillator based sensors23 Jul 2026US 2026/0210782 A1Cirrus Logic International Semiconductor Ltd.
- Voltage-controlled oscillator circuits23 Jul 2026US 2026/0213736 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Method and circuitry for clock synchronization301US 5,485,490 ARambus Inc. · 1996
- Configuring digital functions in a digital configurable macro architecture193US 6,603,330 B1Cypress Semiconductor Corporation · 2003
- Switching power supply VCO169US 4,797,803 ADCI Technology · 1989
- Capacitance sensor using relaxation oscillators166US 7,307,485 B1Cypress Semiconductor Corporation · 2007
- Accurate RC oscillator having peak - to - peak voltage control147US 5,670,915 AMicrochip Technology Incorporated · 1997