H03K 4/023
By repetitive charge or discharge of a capacitor, analogue generators
Official title: {by repetitive charge or discharge of a capacitor, analogue generators}
H03K4/023 (By repetitive charge or discharge of a capacitor, analogue generators) appears on 74 US grants and 40 published applications in this corpus.
Search patents in H03K- Granted patents
- 74
- Published applications
- 40
- Assignees
- 66
- Inventors
- 146
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 3 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 3 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 3 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 3 | 5 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 3 | 4 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Waveform generator and control for selective cell ablation24 Feb 2026US 12,558,144 B2Boston Scientific Scimed, Inc.
- Voltage ramp generator10 Feb 2026US 12,549,162 B2STMicroelectronics International N. V.
- Ramp settling assist circuit in local ramp buffer circuit8 Aug 2023US 11,722,801 B1OmniVision Technologies, Inc.
- Method of driving a capacitive load, corresponding circuit and device14 Feb 2023US 11,581,892 B2STMicroelectronics S,r.l.
- RC oscillator10 May 2022US 11,329,607 B2Catena Holding B.V.
- Optimization of the lidar laser charging and emission circuit2 Jul 2026US 2026/0186106 A1Y.E. Hub Armenia LLC
- Waveform generator and control for selective cell ablation4 Jun 2026US 2026/0151178 A1Boston Scientific Scimed, Inc.
- Voltage ramp generator13 Feb 2025US 2025/0055447 A1STMicroelectronics International N. V.
- Measuring neurochemical levels with multiple cyclic square wave voltammetry4 Nov 2021US 2021/0341412 A1Industry-University Cooperation Foundation Hanyang University
- Rc oscillator15 Apr 2021US 2021/0111673 A1Catena Holding B.V.
Most cited
By later US patents
- Output buffer having sequentially-switched output120US 4,789,796 AU. S. Philips Corporation · 1988
- Precision oscillator circuits and methods with switched capacitor frequency control and frequency-setting resistor56US 6,614,313 B2Linear Technology Corporation · 2003
- Precision oscillator circuits and methods with switched capacitor frequency control and frequency-setting resistor50US 6,342,817 B12002
- Switched-capacitor controller to control the rise times of on-chip generated high voltages31US 7,002,381 B1Advanced Micro Devices, Inc. · 2006
- High-energy ignition generator especially for a gas-turbine28US 4,983,886 ALabo Industrie · 1991