H01J 1/135
Circuit arrangements therefor
Official title: {Circuit arrangements therefor, e.g. for temperature control}
H01J1/135 (Circuit arrangements therefor) appears on 43 US grants and 18 published applications in this corpus.
Search patents in H01J- Granted patents
- 43
- Published applications
- 18
- Assignees
- 37
- Inventors
- 89
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 5 | 5 |
| 2004 | 2 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electron beam source and the use of the same8 Jul 2025US 12,350,754 B2Arcam AB
- Method for tuning work function using surface photo voltage and producing ultra-low-work-function surfaces, and devices operational therewith23 Jul 2024US 12,046,439 B2The Board of Trustees of the Leland Stanford Junior University
- Method for tuning work function using surface photovoltage and producing ultra-low-work-function surfaces, and devices operational therewith21 Dec 2021US 11,205,554 B1The Board of Trustees of the Leland Stanford Junior University
- Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages19 Oct 2021US 11,152,181 B2Panayotis Tsambos
- Electron generating apparatus and ionization gauge20 Jul 2021US 11,069,503 B2Canon Anelva Corporation
- Method For Tuning Work Function Using Surface Photo Voltage and Producing Ultra-Low-Work-Function Surfaces, and Devices Operational Therewith24 Mar 2022US 2022/0093357 A1The Board of Trustees of the Leland Stanford Junior University
- Electron generating apparatus and ionization gauge25 Mar 2021US 2021/0090840 A1Canon Anelva Corporation
- Filament power supply for electron accelerator and electron accelerator30 Apr 2020US 2020/0137868 A1Nuctech Company Limited
- Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages28 Nov 2019US 2019/0362926 A1Panayotis Tsambos
- Electron beam source and the use of the same27 Jun 2019US 2019/0193193 A1Arcam AB
Most cited
By later US patents
- Method and apparatus for quickly heating a vacuum tube cathode24US 4,675,573 AVarian Associates, Inc. · 1987
- Electron emission device12US 4,810,934 ACanon Kabushiki Kaisha · 1989
- Thermoelectric control for field emission display11US 6,507,328 B1Micron Technology, Inc. · 2003
- Method for tuning work function using surface photovoltage and producing ultra-low-work-function surfaces, and devices operational therewith9US 11,205,554 B1The Board of Trustees of the Leland Stanford Junior University · 2021
- Auxiliary-voltage source for supplying electric circuits which are at a high potential7US 4,525,652 ALeybold-Heraeus GmbH · 1985