H04M 19/008
Using dc/dc converters
Official title: {Using DC/DC converters (DC/DC converters per se H02M3/28)}
H04M19/008 (Using dc/dc converters) appears on 85 US grants and 28 published applications in this corpus.
Search patents in H04M- Granted patents
- 85
- Published applications
- 28
- Assignees
- 44
- Inventors
- 110
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 5 |
| 2019 | 4 | 4 |
| 2020 | 5 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 6 | 2 |
| 2024 | 0 | 0 |
| 2025 | 3 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems8 Sep 2026US 12,730,469 B2Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio2 Jun 2026US 12,647,884 B2Outdoor Wireless Networks LLC
- Power supplies for cellular base stations and related methods of reducing power loss in cellular systems16 Dec 2025US 12,498,749 B2Outdoor Wireless Networks LLC
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems9 Dec 2025US 12,493,313 B2Outdoor Wireless Networks LLC
- Voltage conversion techniques9 Dec 2025US 12,493,314 B2Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio3 Sep 2026US 2026/0261967 A1Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio1 Jan 2026US 2026/0006546 A1Outdoor Wireless Networks LLC
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems10 Aug 2023US 2023/0251681 A1CommScope Technologies LLC
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems27 Jul 2023US 2023/0236617 A1CommScope Technologies LLC
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems6 Oct 2022US 2022/0317715 A1CommScope Technologies LLC
Most cited
By later US patents
- Line powered DCA including dual programmed microcontrollers107US 5,224,154 AUniversal Data Systems, Inc. · 1993
- Thermally coupled information transmission across electrical isolation boundaries71US 4,757,528 AHarris Corporation · 1988
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems65US 9,448,576 B2CommScope Technologies LLC · 2016
- Switched capacitor coupled line receiver circuit51US 4,656,661 AAmerican Telephone and Telegraph Company · 1987
- Balanced constant current sensing circuit inherently immune to longitudinal currents49US 4,581,691 AAT&T Bell Laboratories · 1986