H01J 49/288
Using crossed electric and magnetic fields perpendicular to the beam
Official title: {using crossed electric and magnetic fields perpendicular to the beam, e.g. Wien filter}
H01J49/288 (Using crossed electric and magnetic fields perpendicular to the beam) appears on 52 US grants and 29 published applications in this corpus.
Search patents in H01J- Granted patents
- 52
- Published applications
- 29
- Assignees
- 31
- Inventors
- 77
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 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 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 4 |
| 2004 | 2 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 3 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 5 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Analysing a field of a mass spectrometer5 May 2026US 12,620,568 B2Thermo Fisher Scientific (Bremen) GmbH
- Determining an expected response of a mass spectrometer3 Feb 2026US 12,542,267 B2Thermo Fisher Scientific (Bremen) GmbH
- Particle detector having improved performance and service life11 Feb 2025US 12,224,167 B2Adaptas Solutions Pty Ltd
- Mass spectrometer30 Jan 2024US 11,887,832 B2Thermo Fisher Scientific (Bremen) GmbH
- Particle detector having improved performance and service life19 Dec 2023US 11,848,180 B2Adaptas Solutions Pty Ltd
- Mass spectrometer1 Oct 2026US 2026/0302152 A1Thermo Fisher Scientific (Bremen) GmbH
- Simulating a mass spectrometer14 Mar 2024US 2024/0086587 A1Thermo Fisher Scientific (Bremen) GmbH
- Tuning a mass spectrometer filter14 Mar 2024US 2024/0087863 A1Thermo Fisher Scientific (Bremen) GmbH
- Analysing a field of a mass spectrometer14 Mar 2024US 2024/0087871 A1Thermo Fisher Scientific (Bremen) GmbH
- Determining an expected response of a mass spectrometer14 Mar 2024US 2024/0087872 A1Thermo Fisher Scientific (Bremen) GmbH
Most cited
By later US patents
- Micro-miniature diaphragm pump for the low pressure pumping of gases187US 5,659,171 ANorthrop Grumman Corporation · 1997
- Miniaturized mass filter83US 5,536,939 ANorthrop Grumman Corporation · 1996
- Micromachined mass spectrometer54US 5,541,408 ARosemount Analytical Inc. · 1996
- Micromachined mass spectrometer53US 5,401,963 ARosemount Analytical Inc. · 1995
- Solid state micro-machined mass spectrograph universal gas detection sensor51US 5,386,115 AWestinghouse Electric Corp. · 1995