H01J 49/328
With a cycloidal trajectory by using crossed electric and magnetic fields
Official title: {with a cycloidal trajectory by using crossed electric and magnetic fields, e.g. trochoidal type}
H01J49/328 (With a cycloidal trajectory by using crossed electric and magnetic fields) appears on 27 US grants and 11 published applications in this corpus.
Search patents in H01J- Granted patents
- 27
- Published applications
- 11
- Assignees
- 11
- Inventors
- 35
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 0 |
| 2002 | 2 | 0 |
| 2003 | 4 | 2 |
| 2004 | 5 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cycloidal mass spectrometer and method for adjusting resolution thereof16 Sep 2025US 12,417,905 B2Shimadzu Corporation
- Virtual slit cycloidal mass spectrometer29 Oct 2024US 12,131,894 B2Arizona Board of Regents on Behalf of the University of Arizona
- Apparatus for mass analysis of analytes by simultaneous positive and negative ionization21 Jul 2020US 10,720,317 B2Meridion, LLC
- Apparatus for mass analysis of analytes by simultaneous positive and negative ionization11 Dec 2018US 10,153,150 B2Meridion, LLC
- Mass separator with controlled input18 Oct 2005US 6,956,217 B2Archimedes Operating, LLC
- Virtual slit cycloidal mass spectrometer29 Aug 2024US 2024/0290604 A1Arizona Board of Regents on Behalf of the University of Arizona
- Tuning a mass spectrometer filter14 Mar 2024US 2024/0087863 A1Thermo Fisher Scientific (Bremen) GmbH
- Cycloidal mass spectrometer and method for adjusting resolution thereof2 Nov 2023US 2023/0352292 A1Shimadzu Corporation
- Apparatus for mass analysis of analytes by simultaneous positive and negative ionization18 Apr 2019US 2019/0115201 A1Meridion, LLC
- Magnet assembly with improved field uniformity and methods of making and using same18 Apr 2019US 2019/0115202 A1Duke University
Most cited
By later US patents
- Radial plasma mass filter74US 6,322,706 B1Archimedes Technology Group, Inc. · 2001
- Plasma mass filter43US 6,096,220 AArchimedes Technology Group, Inc. · 2000
- Portable mass spectrometer33US 5,155,357 AMassachusetts Institute of Technology · 1992
- Negative ion filter23US 6,251,281 B1Archimedes Technology Group, Inc. · 2001
- Toroidal plasma mass filter18US 6,214,223 B1Archimedes Technology Group, Inc. · 2001