B60L 15/04
Using dc
Official title: using DC
B60L15/04 (Using dc) appears on 55 US grants and 55 published applications in this corpus.
Search patents in B60L- Granted patents
- 55
- Published applications
- 55
- Assignees
- 55
- Inventors
- 144
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 1 | 4 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 5 | 1 |
| 2020 | 1 | 4 |
| 2021 | 1 | 3 |
| 2022 | 3 | 4 |
| 2023 | 7 | 8 |
| 2024 | 6 | 7 |
| 2025 | 6 | 4 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid power system and operation machinery28 Jul 2026US 12,691,746 B2Sany Automobile Manufacturing Co., Ltd.
- Electric machine unit, vehicle and method of operating an electric machine unit25 Nov 2025US 12,479,309 B2SEG Automotive Germany GmbH
- Optimization of switching frequency and pulse width modulation technique for traction power inverters4 Nov 2025US 12,459,376 B2BorgWarner Inc.
- On-pulse transition times for pulsed controlled electric machines using boost voltages29 Jul 2025US 12,370,907 B2Tula eTechnology, Inc.
- Motor vehicle having a DC voltage onboard power supply6 May 2025US 12,291,105 B2Audi AG
- Rotor Having a DC-To-DC Converter for an Electric Machine24 Sep 2026US 2026/0291344 A1Bayerische Motoren Werke Aktiengesellschaft
- Multi-layer software-defined system and method for high performance energy conversion6 Aug 2026US 2026/0229994 A1The Trustees of Columbia University in the City of New York
- Motor control device18 Jun 2026US 2026/0167012 A1LG Innotek Co., Ltd.
- Filter circuit and filter of direct-current power supply, electric drive controller, and vehicle4 Jun 2026US 2026/0155737 A1Viridi E-Mobility Technology (Ningbo) Co., Ltd.
- Electric vehicle26 Mar 2026US 2026/0088738 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Power supply system having two different types of batteries and current-limiting circuit for lower output battery190US 4,056,764 ANissan Motor Co., Ltd. · 1977
- Multilevel DC link inverter36US 6,577,087 B2UT-Battelle, LLC · 2003
- Method of and means for utilizing rechargeable batteries in the operation of electric vehicles31US 4,277,737 A1981
- Hybrid vehicle power control apparatus and hybrid construction equipment using the power control apparatus29US 6,864,663 B2Kobelco Construction Machinery Co., Ltd. · 2005
- Electrical power supply having a variable output22US 4,814,631 A1989