H01J 49/24
Vacuum systems
Official title: Vacuum systems, e.g. maintaining desired pressures
H01J49/24 (Vacuum systems) appears on 442 US grants and 495 published applications in this corpus.
Search patents in H01J- Granted patents
- 442
- Published applications
- 495
- Assignees
- 146
- Inventors
- 678
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 2 | 6 |
| 2009 | 1 | 5 |
| 2010 | 4 | 13 |
| 2011 | 4 | 8 |
| 2012 | 10 | 11 |
| 2013 | 12 | 15 |
| 2014 | 29 | 23 |
| 2015 | 29 | 34 |
| 2016 | 24 | 40 |
| 2017 | 28 | 30 |
| 2018 | 30 | 41 |
| 2019 | 30 | 22 |
| 2020 | 25 | 36 |
| 2021 | 43 | 45 |
| 2022 | 40 | 35 |
| 2023 | 25 | 26 |
| 2024 | 27 | 47 |
| 2025 | 26 | 28 |
| 2026 | 17 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum chamber assembly with multiple functions to maximize universality and performance22 Sep 2026US 12,744,196 B2Mstm, LLC
- Method and systems for analyzing ions using differential mobility spectrometry and ion guide comprising additional auxiliary electrodes8 Sep 2026US 12,730,091 B2DH Technologies Development Pte. Ltd.
- Mass spectrometer1 Sep 2026US 12,725,773 B2Shimadzu Corporation
- Mass spectrometry system for determining a measure of a rate of decay25 Aug 2026US 12,719,042 B2Thermo Fisher Scientific (Bremen) GmbH
- Methods and apparatus for washing sampling probe for use in mass spectrometry systems9 Jun 2026US 12,651,735 B2DH Technologies Development Pte. Ltd.
- Integrated High Voltage Power Supply and Vacuum Flange for a Mass Spectrometer8 Oct 2026US 2026/0311989 A1DH Technologies Development Pte. Ltd.
- Systems and methods for mass spectrometry17 Sep 2026US 2026/0279753 A1Peninsula Technologies, LLC
- Apparatus for generating ions10 Sep 2026US 2026/0269205 A1Thermo Fisher Scientific (Bremen) GmbH
- Rapid evaporative ionisation mass spectrometry ("reims") and desorption electrospray ionisation mass spectrometry ("desi-ms") analysis of swabs and biopsy samples10 Sep 2026US 2026/0269206 A1Micromass UK Limited
- Analysis apparatus20 Aug 2026US 2026/0245854 A1Shimadzu Corporation
Most cited
By later US patents
- Micro-miniature diaphragm pump for the low pressure pumping of gases187US 5,659,171 ANorthrop Grumman Corporation · 1997
- Liquid trap or separator for electrosurgical applications134US 10,916,415 B2Micromass UK Limited · 2021
- Discontinuous atmospheric pressure interface114US 8,304,718 B2Purdue Research Foundation · 2012
- Sample supply device67US 4,213,326 AThe Upjohn Company · 1980
- Apparatus and methods for the analysis of trace constituents in gases57US 5,869,344 AMicromass UK Limited · 1999