G01L 21/34
Using electric discharge tubes with cold cathodes
Official title: using electric discharge tubes with cold cathodes
G01L21/34 (Using electric discharge tubes with cold cathodes) appears on 70 US grants and 53 published applications in this corpus.
Search patents in G01L- Granted patents
- 70
- Published applications
- 53
- Assignees
- 38
- Inventors
- 123
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 5 | 4 |
| 2011 | 0 | 4 |
| 2012 | 3 | 1 |
| 2013 | 2 | 1 |
| 2014 | 3 | 5 |
| 2015 | 3 | 3 |
| 2016 | 2 | 4 |
| 2017 | 4 | 4 |
| 2018 | 3 | 3 |
| 2019 | 5 | 3 |
| 2020 | 1 | 2 |
| 2021 | 7 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Operating method for a group of pressure sensors17 Feb 2026US 12,553,786 B2Inficon GmbH
- Vacuum feedthrough, electrode assembly, and device for generating a silent plasma discharge17 Sep 2024US 12,096,545 B2Inficon GmbH
- Method for detecting pressure, and pressure sensor10 Sep 2024US 12,085,467 B2Inficon GmbH
- Vacuum-tight electrical feedthrough7 May 2024US 11,976,992 B2Inficon GmbH
- Compact electrostatic ion pump31 Jan 2023US 11,569,077 B2SRI International
- Vacuum feedthrough, electrode assembly, and device for generating a silent plasma discharge13 Jun 2024US 2024/0196508 A1Inficon GmbH
- Operating method for a group of pressure sensors16 Nov 2023US 2023/0366766 A1Inficon GmbH
- Vacuum-tight electrical feedthrough27 Oct 2022US 2022/0341802 A1Inficon GmbH
- Method for detecting pressure, and pressure sensor20 Oct 2022US 2022/0334016 A1Inficon GmbH
- Ionization gauge and cartridge29 Apr 2021US 2021/0123827 A1Canon Anelva Corporation
Most cited
By later US patents
- Cold cathode gauge fast response signal circuit53US 8,928,329 B2MKS Instruments, Inc. · 2015
- Ionization vacuum gauge using a cold micropoint cathode21US 5,278,510 ACommissariat A L' Energie Atomique · 1994
- Process for evaluating the output signals of two pressure sensors and a pressure measuring arrangement with two pressure measuring sensors and a pressure measuring head17US 5,583,297 ABalzers Aktiengegesellschaft · 1996
- Ionization gauge having a non-time varying magnetic field generator of separated opposed magnets15US 5,568,053 AThe Fredericks Company · 1996
- Ionization gauge with a cold electron source13US 7,768,267 B2Brooks Automation, Inc. · 2010