H03K 7/08
Duration or width modulation
Official title: Duration or width modulation {; Duty cycle modulation}
H03K7/08 (Duration or width modulation) appears on 1,599 US grants and 1,481 published applications in this corpus.
Search patents in H03K- Granted patents
- 1,599
- Published applications
- 1,481
- Assignees
- 725
- Inventors
- 3,002
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 8 | 0 |
| 1986 | 12 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 15 | 3 |
| 2002 | 18 | 17 |
| 2003 | 26 | 21 |
| 2004 | 17 | 27 |
| 2005 | 21 | 41 |
| 2006 | 37 | 55 |
| 2007 | 37 | 35 |
| 2008 | 40 | 77 |
| 2009 | 43 | 60 |
| 2010 | 72 | 82 |
| 2011 | 50 | 61 |
| 2012 | 74 | 51 |
| 2013 | 55 | 61 |
| 2014 | 59 | 56 |
| 2015 | 62 | 43 |
| 2016 | 68 | 60 |
| 2017 | 67 | 82 |
| 2018 | 73 | 70 |
| 2019 | 88 | 114 |
| 2020 | 130 | 111 |
| 2021 | 90 | 68 |
| 2022 | 72 | 61 |
| 2023 | 60 | 55 |
| 2024 | 44 | 60 |
| 2025 | 57 | 45 |
| 2026 | 29 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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By later US patents
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- Detection means for multiple capacitive sensing devices181US 4,266,144 AEmhart Industries, Inc. · 1981
- DC-DC converter with reduced electromagnetic interference166US 6,969,978 B2RF Micro Devices, Inc. · 2005
- Pulse width modulation signal generating circuit141US 5,298,871 ANEC Corporation · 1994