H03K 4/48
Using as active elements semiconductor devices
Official title: using as active elements semiconductor devices (H03K4/787 - H03K4/84 take precedence)
H03K4/48 (Using as active elements semiconductor devices) appears on 749 US grants and 346 published applications in this corpus.
Search patents in H03K- Granted patents
- 749
- Published applications
- 346
- Assignees
- 335
- Inventors
- 1,112
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 43 | 0 |
| 1977 | 22 | 0 |
| 1978 | 17 | 0 |
| 1979 | 26 | 0 |
| 1980 | 34 | 0 |
| 1981 | 26 | 0 |
| 1982 | 20 | 0 |
| 1983 | 18 | 0 |
| 1984 | 16 | 0 |
| 1985 | 18 | 0 |
| 1986 | 12 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 18 | 0 |
| 1990 | 15 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 1 |
| 2002 | 6 | 6 |
| 2003 | 10 | 7 |
| 2004 | 3 | 4 |
| 2005 | 10 | 12 |
| 2006 | 7 | 9 |
| 2007 | 6 | 6 |
| 2008 | 10 | 18 |
| 2009 | 11 | 15 |
| 2010 | 17 | 24 |
| 2011 | 22 | 17 |
| 2012 | 16 | 19 |
| 2013 | 11 | 16 |
| 2014 | 27 | 12 |
| 2015 | 17 | 20 |
| 2016 | 24 | 9 |
| 2017 | 16 | 17 |
| 2018 | 10 | 20 |
| 2019 | 30 | 31 |
| 2020 | 46 | 23 |
| 2021 | 15 | 13 |
| 2022 | 15 | 13 |
| 2023 | 11 | 10 |
| 2024 | 13 | 11 |
| 2025 | 11 | 5 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ramp circuit7 Apr 2026US 12,597,943 B2ams Sensors Belgium BVBA
- Dithering for constant on time control loop25 Nov 2025US 12,483,131 B2STMicroelectronics International N. V.
- Oscillators having comparators therein with improved common mode variation across a wide range of process-voltage-temperature (PVT) changes11 Nov 2025US 12,470,172 B2Samsung Electronics Co., Ltd.
- Feedback current depended ramp generator for switched mode power supply21 Oct 2025US 12,451,805 B2GLOBALFOUNDRIES U. S. Inc.
- Ramp signal generator for calibrating ramp linearity, operating method thereof, and image sensor device including the same7 Oct 2025US 12,439,183 B2Samsung Electronics Co., Ltd.
- 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.
- Integrated circuit configured to generate a pulse width modulated signal6 Aug 2026US 2026/0230081 A1STMicroelectronics International N. V.
- Pulse formation device and pulse formation method using the same16 Jul 2026US 2026/0205005 A1Korea Electrotechnology Research Institute
- Ramp generator and image sensing device including the same4 Jun 2026US 2026/0155810 A1SK hynix Inc.
- Smart time control for switching among various phases of a device via a single capacitor28 May 2026US 2026/0149443 A1
Most cited
By later US patents
- Oscillator for generating a varying amplitude feed forward PFC modulation ramp81US 5,592,128 AMicro Linear Corporation · 1997
- Automatic brightness control apparatus76US 4,514,727 ATRW Inc. · 1985
- Temperature and power supply compensation circuit for integrated circuits56US 4,879,505 AAnalog Devices, Inc. · 1989
- Digital-to-time converter46US 4,742,331 AAnalog Devices, Inc. · 1988
- Asymmetrical ramp generator system42US 5,574,392 AAnalog Devices, Inc. · 1996