H03K 4/00
Generating pulses having essentially a finite slope or stepped portions
H03K4/00 (Generating pulses having essentially a finite slope or stepped portions) appears on 1,473 US grants and 790 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,473
- Published applications
- 790
- Assignees
- 592
- Inventors
- 2,328
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 61 | 0 |
| 1977 | 49 | 0 |
| 1978 | 35 | 0 |
| 1979 | 38 | 0 |
| 1980 | 47 | 0 |
| 1981 | 38 | 0 |
| 1982 | 39 | 0 |
| 1983 | 27 | 0 |
| 1984 | 28 | 0 |
| 1985 | 27 | 0 |
| 1986 | 18 | 0 |
| 1987 | 33 | 0 |
| 1988 | 19 | 0 |
| 1989 | 29 | 0 |
| 1990 | 26 | 0 |
| 1991 | 28 | 0 |
| 1992 | 19 | 0 |
| 1993 | 17 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 17 | 0 |
| 1997 | 13 | 0 |
| 1998 | 15 | 0 |
| 1999 | 15 | 0 |
| 2000 | 15 | 0 |
| 2001 | 18 | 3 |
| 2002 | 21 | 18 |
| 2003 | 18 | 14 |
| 2004 | 6 | 12 |
| 2005 | 20 | 23 |
| 2006 | 17 | 21 |
| 2007 | 15 | 17 |
| 2008 | 19 | 31 |
| 2009 | 19 | 22 |
| 2010 | 26 | 41 |
| 2011 | 27 | 30 |
| 2012 | 33 | 32 |
| 2013 | 25 | 33 |
| 2014 | 47 | 31 |
| 2015 | 35 | 42 |
| 2016 | 47 | 33 |
| 2017 | 38 | 32 |
| 2018 | 24 | 46 |
| 2019 | 66 | 69 |
| 2020 | 87 | 49 |
| 2021 | 38 | 36 |
| 2022 | 36 | 36 |
| 2023 | 34 | 31 |
| 2024 | 28 | 40 |
| 2025 | 28 | 27 |
| 2026 | 24 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03K 4/06Generating pulses having essentially a finite slope or stepped portions: having triangular1,103
- H03K 4/02Generating pulses having essentially a finite slope or stepped portions: having stepped229
- H03K 4/94Generating pulses having essentially a finite slope or stepped portions: having trapezoidal99
- H03K 4/92Generating pulses having essentially a finite slope or stepped portions: having a32
- H03K 4/04Generating pulses having essentially a finite slope or stepped portions: having parabolic24
Recent patents
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- Parasitic capacitance mitigation circuit for relaxation oscillators4 Aug 2026US 12,700,851 B2University of Utah Research Foundation
- Gate driver control for high frequency switching converter21 Jul 2026US 12,689,286 B2Monolithic Power Systems, Inc.
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- Systems, Apparatuses, and Methods for Voltage Safety Detection and Voltage Overshoot Management24 Sep 2026US 2026/0291469 A1Panduit Corp.
- 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.
- Signal generator and method for operating a signal generator13 Aug 2026US 2026/0238195 A1
- Inrush current suppression circuit6 Aug 2026US 2026/0229880 A1Anpec Electronics Corporation
Most cited
By later US patents
- High-efficiency driver circuit for capacitive loads383US 6,828,712 B2STMicroelectronics S,r.l. · 2004
- Output buffer having sequentially-switched output120US 4,789,796 AU. S. Philips Corporation · 1988
- Oscillator for generating a varying amplitude feed forward PFC modulation ramp81US 5,592,128 AMicro Linear Corporation · 1997
- Resistance-bridge to frequency converter with automatic offset correction78US 4,296,413 AGeneral Electric Company · 1981
- Automatic brightness control apparatus76US 4,514,727 ATRW Inc. · 1985