H01J 65/042
By an external electromagnetic field
Official title: {by an external electromagnetic field}
H01J65/042 (By an external electromagnetic field) appears on 1,331 US grants and 1,087 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,331
- Published applications
- 1,087
- Assignees
- 380
- Inventors
- 2,001
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 18 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 11 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 9 | 0 |
| 1989 | 13 | 0 |
| 1990 | 21 | 0 |
| 1991 | 24 | 0 |
| 1992 | 19 | 0 |
| 1993 | 15 | 0 |
| 1994 | 26 | 0 |
| 1995 | 28 | 0 |
| 1996 | 20 | 0 |
| 1997 | 33 | 0 |
| 1998 | 58 | 0 |
| 1999 | 46 | 0 |
| 2000 | 35 | 0 |
| 2001 | 42 | 12 |
| 2002 | 36 | 46 |
| 2003 | 53 | 70 |
| 2004 | 60 | 59 |
| 2005 | 48 | 96 |
| 2006 | 49 | 97 |
| 2007 | 43 | 92 |
| 2008 | 40 | 68 |
| 2009 | 42 | 64 |
| 2010 | 43 | 75 |
| 2011 | 51 | 62 |
| 2012 | 64 | 32 |
| 2013 | 50 | 33 |
| 2014 | 37 | 63 |
| 2015 | 32 | 28 |
| 2016 | 33 | 15 |
| 2017 | 21 | 19 |
| 2018 | 24 | 13 |
| 2019 | 15 | 15 |
| 2020 | 11 | 9 |
| 2021 | 4 | 13 |
| 2022 | 18 | 39 |
| 2023 | 21 | 30 |
| 2024 | 27 | 15 |
| 2025 | 8 | 16 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Semiconductor reaction chamber29 Sep 2026US 12,749,651 B2Beijing Naura Microelectronics Equipment Co., Ltd.
- Light source29 Sep 2026US 12,749,668 B2
- Magnetically enhanced VUV lamp9 Jun 2026US 12,652,746 B1Uchicago Argonne, LLC
- Light emitting plasma lamp bulb for solar UV simulation and lamp comprising the same24 Mar 2026US 12,586,772 B2Korea Research Institute of Chemical Technology
- Excimer lamp, lamp unit, and method for producing excimer lamp20 Jan 2026US 12,531,229 B2Stanley Electric Co., Ltd.
- Excimer lamp envelope uv filter2 Jul 2026US 2026/0188639 A1Excelitas Technologies Corp.
- Vuv laser-sustained plasma light source with direct gas flow28 May 2026US 2026/0148952 A1KLA Corporation
- Excimer lamp26 Mar 2026US 2026/0088267 A1ORC Manufacturing Co., Ltd.
- Ultraviolet-light-radiating device, and method for controlling ultraviolet-light-radiating device26 Feb 2026US 2026/0053964 A1Jamco Corporation
- Inactivation apparatus29 Jan 2026US 2026/0027246 A1Ushio Denki Kabushiki Kaisha
Most cited
By later US patents
- Method to operate an incoherently emitting radiation source having at least one dielectrically impeded electrode583US 5,604,410 APatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · 1997
- Plasma lamp and methods using a waveguide body and protruding bulb526US 7,994,721 B2Luxim Corporation · 2011
- Plasma lamp with stable feedback amplification and method therefor352US 7,638,951 B2Luxim Corporation · 2009
- Inductively powered apparatus349US 7,126,450 B2Access Business Group International LLC · 2006
- Inductive coil assembly334US 7,132,918 B2Access Business Group International LLC · 2006