H01J 37/241
High voltage power supply or regulation circuits
Official title: {High voltage power supply or regulation circuits}
H01J37/241 (High voltage power supply or regulation circuits) appears on 116 US grants and 122 published applications in this corpus.
Search patents in H01J- Granted patents
- 116
- Published applications
- 122
- Assignees
- 79
- Inventors
- 302
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 4 |
| 2006 | 3 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 3 | 3 |
| 2012 | 1 | 6 |
| 2013 | 5 | 2 |
| 2014 | 4 | 6 |
| 2015 | 4 | 9 |
| 2016 | 2 | 5 |
| 2017 | 4 | 3 |
| 2018 | 4 | 7 |
| 2019 | 8 | 6 |
| 2020 | 9 | 16 |
| 2021 | 11 | 9 |
| 2022 | 10 | 7 |
| 2023 | 9 | 6 |
| 2024 | 4 | 10 |
| 2025 | 2 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method of generating high voltage variable frequency electromagnetic radiation4 Aug 2026US 12,697,501 B2Advanced Biotechnologies Limited
- High voltage power supplies for fast voltage changes21 Apr 2026US 12,609,271 B2Advanced Energy Industries, Inc.
- RC IGBT, method of producing an RC IGBT and method of controlling a half bridge circuit10 Mar 2026US 12,575,168 B2Infineon Technologies AG
- Charged particle beam device17 Feb 2026US 12,555,737 B2Hitachi High-Tech Corporation
- Power generator with partial sinusoidal waveform, plasma processing apparatus including the same and method of manufacturing semiconductor device using the same17 Feb 2026US 12,556,111 B2Samsung Electronics Co., Ltd.
- High-voltage power supply11 Jun 2026US 2026/0162928 A1Hitachi High-Tech Corporation
- Systems for and methods of improved plasma enhanced deposition, surface modification, and abatement30 Apr 2026US 2026/0120993 A1Stellar Engiine, Inc.
- Insulation gas for high voltage component of electron microscopes9 Apr 2026US 2026/0100326 A1
- Ion source and operating method thereof12 Mar 2026US 2026/0074138 A1Nissin Ion Equipment Co., Ltd.
- Bias power supply and bias power supply control9 Oct 2025US 2025/0316451 A1Advanced Energy Industries, Inc.
Most cited
By later US patents
- E-beam high voltage switching power supply156US 5,610,452 AThe United States of America as represented by the United States Department of Energy · 1997
- Wide dynamic range ion energy bias control; fast ion energy switching; ion energy control and a pulsed bias supply; and a virtual front panel98US 9,105,447 B2Advanced Energy Industries, Inc. · 2015
- High voltage resistive output stage circuit84US 10,460,910 B2Eagle Harbor Technologies, Inc. · 2019
- High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs78US 5,418,707 AThe United States of America as represented by the United States Department of Energy · 1995
- High voltage resistive output stage circuit69US 10,460,911 B2Eagle Harbor Technologies, Inc. · 2019