H01J 41/02
Discharge tubes for measuring pressure of introduced gas or for detecting presence
Official title: Discharge tubes for measuring pressure of introduced gas {or for detecting presence of gas}
H01J41/02 (Discharge tubes for measuring pressure of introduced gas or for detecting presence) appears on 129 US grants and 80 published applications in this corpus.
Search patents in H01J- Granted patents
- 129
- Published applications
- 80
- Assignees
- 75
- Inventors
- 193
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 4 |
| 2006 | 4 | 4 |
| 2007 | 2 | 1 |
| 2008 | 4 | 4 |
| 2009 | 0 | 5 |
| 2010 | 5 | 4 |
| 2011 | 1 | 4 |
| 2012 | 2 | 1 |
| 2013 | 3 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 6 |
| 2016 | 5 | 4 |
| 2017 | 5 | 6 |
| 2018 | 6 | 5 |
| 2019 | 10 | 2 |
| 2020 | 5 | 6 |
| 2021 | 7 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 5 |
| 2024 | 9 | 4 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Partial pressure gauge assembly for process contaminant detection using photoionization and associated method21 Jan 2025US 12,203,887 B2Inficon GmbH
- Chamber for an ionization vacuum gauge26 Nov 2024US 12,154,771 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
- High power ion beam generator systems and methods24 Sep 2024US 12,101,870 B2SHINE Technologies, LLC
- Vacuum feedthrough, electrode assembly, and device for generating a silent plasma discharge17 Sep 2024US 12,096,545 B2Inficon GmbH
- High power ion beam generator systems and methods30 Apr 2026US 2026/0122758 A1SHINE Technologies, LLC
- High power ion beam generator systems and methods30 Apr 2026US 2026/0122759 A1SHINE Technologies, LLC
- Photoionization detector (pid) lamp assembly and a method to manufacture the pid lamp assembly2 Oct 2025US 2025/0308869 A1Life Safety Distribution AG
- Chamber for an ionization vacuum gauge6 Feb 2025US 2025/0046589 A1Inficon GmbH
- High power ion beam generator systems and methods24 Oct 2024US 2024/0357728 A1SHINE Technologies, LLC
Most cited
By later US patents
- Dual-channel photo-ionization detector that eliminates the effect of ultraviolet intensity on concentration measurements36US 6,313,638 B1RAE Systems, Inc. · 2001
- Photo-ionization detector for volatile gas measurement35US 5,773,833 ARAE Systems, Inc. · 1998
- Photo-ionization detector for volatile gas measurement and a method for self-cleaning the same32US 6,225,633 B1RAE Systems, Inc. · 2001
- Thermal desorption method for separating volatile additives from vulcanizable rubber31US 5,191,211 ABridgestone/Firestone, Inc. · 1993
- Ionization gauge and method of using and calibrating same28US 5,422,573 AGranville-Phillips Company · 1995