H02K 47/12
Dc/dc converters
Official title: DC/DC converters
H02K47/12 (Dc/dc converters) appears on 33 US grants and 31 published applications in this corpus.
Search patents in H02K- Granted patents
- 33
- Published applications
- 31
- Assignees
- 15
- Inventors
- 62
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 3 | 3 |
| 2015 | 2 | 2 |
| 2016 | 2 | 3 |
| 2017 | 3 | 4 |
| 2018 | 4 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric compressor19 May 2026US 12,633,796 B2Hanon Systems
- Portable and scalable power generating systems and methods thereof18 Mar 2025US 12,255,570 B2
- Electrical generation26 Mar 2024US 11,942,820 B2
- Transport climate control system power architecture12 Dec 2023US 11,843,303 B2Thermo King Corporation
- Transport climate control system power architecture1 Nov 2022US 11,489,431 B2Thermo King Corporation
- Electric compressor20 Nov 2025US 2025/0357817 A1Hanon Systems
- Electrical Generation29 Feb 2024US 2024/0072624 A1
- Transport climate control system power architecture9 Mar 2023US 2023/0071256 A1Thermo King Corporation
- Portable and scalable power generating systems and methods thereof1 Sep 2022US 2022/0278636 A1
- Transport climate control system power architecture1 Jul 2021US 2021/0203217 A1Thermo King Corporation
Most cited
By later US patents
- DC rotary machine67US 4,259,604 ACanon Kabushiki Kaisha · 1981
- Charging and vibrating method using movable magnets for a product using rechargeable batteries22US 6,288,519 B1Ericsson Inc. · 2001
- Triodyne12US 4,383,213 A1983
- Direct-current motor-generator7US 4,082,970 APortescap · 1978
- Auxiliary electric power supply for electric work vehicles7US 4,500,819 AClark Equipment Company · 1985