H01J 41/06
With ionisation by means of cold cathodes
Official title: with ionisation by means of cold cathodes
H01J41/06 (With ionisation by means of cold cathodes) appears on 40 US grants and 30 published applications in this corpus.
Search patents in H01J- Granted patents
- 40
- Published applications
- 30
- Assignees
- 29
- Inventors
- 61
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 3 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 3 |
| 2019 | 3 | 2 |
| 2020 | 0 | 1 |
| 2021 | 7 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Partial pressure gauge assembly for process contaminant detection using photoionization and associated method21 Jan 2025US 12,203,887 B2Inficon GmbH
- Vacuum module and vacuum apparatus and method for regeneration of a volume getter vacuum pump1 Oct 2024US 12,106,950 B2Edwards Vacuum LLC
- Method for detecting pressure, and pressure sensor10 Sep 2024US 12,085,467 B2Inficon GmbH
- Method and apparatus for characterizing homodyne transmitters and receivers8 Mar 2022US 11,268,997 B1Keysight Technologies, Inc.
- Ionization vacuum measuring cell2 Nov 2021US 11,164,731 B2Inficon GmbH
- Partial pressure gauge assembly for process contaminant detection using photoionization and associated method14 Mar 2024US 2024/0085374 A1Cosmex Co., Ltd.
- Vacuum module and vacuum apparatus and method for regeneration of a volume getter vacuum pump23 Mar 2023US 2023/0088465 A1Edwards Vacuum LLC
- Method for detecting pressure, and pressure sensor20 Oct 2022US 2022/0334016 A1Inficon GmbH
- Ionization gauge and cartridge29 Apr 2021US 2021/0123827 A1Canon Anelva Corporation
- Ionization gauge and cartridge18 Mar 2021US 2021/0080336 A1Canon Anelva Corporation
Most cited
By later US patents
- Discharge initiating means for cold cathode discharge ionization gauge15US 5,157,333 AMKS Instruments, Inc. · 1992
- Ionization gauge having a non-time varying magnetic field generator of separated opposed magnets15US 5,568,053 AThe Fredericks Company · 1996
- Removable discharge initiating means for cold cathode discharge ionization gauge12US 5,198,772 AMKS Instruments, Inc. · 1993
- Cold cathode ionization gauge control for vacuum measurement9US 4,000,457 AVarian Associates, Inc. · 1976
- Ionization vacuum gauge9US 7,049,823 B2Varian, Inc. · 2006