H02M 1/04
For tubes with grid control
Official title: for tubes with grid control
H02M1/04 (For tubes with grid control) appears on 20 US grants and 23 published applications in this corpus.
Search patents in H02M- Granted patents
- 20
- Published applications
- 23
- Assignees
- 17
- Inventors
- 42
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 1 |
| 2022 | 2 | 3 |
| 2023 | 2 | 3 |
| 2024 | 4 | 2 |
| 2025 | 4 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flying-capacitor multi-level bridgeless totem-pole boost PFC converters with reduced zero-crossing distortion of line current11 Aug 2026US 12,706,529 B2Delta Electronics, Inc.
- LLC converter with protection circuit30 Sep 2025US 12,431,794 B2Infineon Technologies Austria AG
- Rectifier circuit and receiver circuit27 May 2025US 12,316,136 B2Realtek Semiconductor Corp.
- Power conversion device, image forming apparatus, and power conversion control method4 Mar 2025US 12,244,246 B2Ricoh Company, Ltd.
- Systems and methods for signal isolation in power converters28 Jan 2025US 12,212,440 B2Navitas Semiconductor Limited
- Ac-ac converter and power supply system28 May 2026US 2026/0149382 A1Delta Electronics, Inc.
- Systems and methods for signal isolation in power converters1 May 2025US 2025/0141717 A1Navitas Semiconductor Limited
- Flying-capacitor multi-level bridgeless totem-pole boost pfc converters with reduced zero-crossing distortion of line current17 Apr 2025US 2025/0125719 A1Delta Electronics, Inc.
- Llc converter with protection circuit27 Mar 2025US 2025/0105729 A1Infineon Technologies Austria AG
- Systems and methods for isolated low voltage energy storage for data centers16 Jan 2025US 2025/0023488 A1Inertech IP LLC
Most cited
By later US patents
- Accelerometer-based battery charge status indicator16US 9,124,112 B2Tyco Fire & Security GmbH · 2015
- Forced zero voltage switching flyback converter5US 10,250,152 B2Alpha and Omega Semiconductor Incorporated · 2019
- Forced zero voltage switching flyback converter5US 9,998,021 B2Alpha and Omega Semiconductor Incorporated · 2018
- Systems and methods for isolated low voltage energy storage for data centers4US 10,673,327 B2Inertech IP LLC · 2020
- Triggering circuit for triggered vacuum gaps2US 4,131,826 AGeneral Electric Company · 1978