H02M 1/007
Plural converter units in cascade
Official title: {Plural converter units in cascade (push-pull DC/DC converters with pre-regulator H02M3/3374; DC-AC converters following a DC-DC stage including a high frequency transformer H02M7/4807; DC-AC converters following a DC-DC conversion stage generating periodically varying voltages H02M7/4826)}
H02M1/007 (Plural converter units in cascade) appears on 3,707 US grants and 4,575 published applications in this corpus.
Search patents in H02M- Granted patents
- 3,707
- Published applications
- 4,575
- Assignees
- 1,459
- Inventors
- 8,002
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 23 | 0 |
| 1999 | 26 | 0 |
| 2000 | 27 | 0 |
| 2001 | 26 | 12 |
| 2002 | 19 | 24 |
| 2003 | 27 | 31 |
| 2004 | 43 | 65 |
| 2005 | 36 | 51 |
| 2006 | 44 | 49 |
| 2007 | 41 | 61 |
| 2008 | 37 | 62 |
| 2009 | 47 | 85 |
| 2010 | 52 | 85 |
| 2011 | 52 | 85 |
| 2012 | 68 | 110 |
| 2013 | 84 | 121 |
| 2014 | 95 | 147 |
| 2015 | 111 | 196 |
| 2016 | 156 | 179 |
| 2017 | 201 | 178 |
| 2018 | 189 | 198 |
| 2019 | 247 | 243 |
| 2020 | 254 | 287 |
| 2021 | 235 | 339 |
| 2022 | 301 | 415 |
| 2023 | 320 | 447 |
| 2024 | 331 | 390 |
| 2025 | 373 | 401 |
| 2026 | 200 | 314 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- High efficiency power converter1,482US 7,202,653 B2Richtek Technology Corporation · 2007
- System and method for reducing external battery capacity requirement for a wireless card1,202US 6,998,816 B2Sony Electronics Inc. · 2006
- Apparatus and method of optimizing power system efficiency using a power loss model1,185US 8,179,705 B2Power-One, Inc. · 2012
- Universal ballast control circuit611US 6,137,240 ALumion Corporation · 2000
- Method and apparatus for providing wireless power to a load device490US 8,461,817 B2Powercast Corporation · 2013