H01J 29/84
Arrangements for removing or diverting unwanted particles
Official title: Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection
H01J29/84 (Arrangements for removing or diverting unwanted particles) appears on 33 US grants and 13 published applications in this corpus.
Search patents in H01J- Granted patents
- 33
- Published applications
- 13
- Assignees
- 27
- Inventors
- 90
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 3 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Ion trap21 May 2024US 11,990,329 B2Thermo Fisher Scientific (Bremen) GmbH
- Dynamic ion filter for reducing highly abundant ions1 Nov 2022US 11,488,818 B2Analytik Jena AG
- Electron beam emission device3 Jul 2018US 10,014,146 B2Korea Institute of Industrial Technology
- Image display apparatus having ION pump including permanent magnet21 Oct 2008US 7,439,661 B2Canon Kabushiki Kaisha
- Image display apparatus provided with an ion pump assembly arranged within an external container27 Nov 2007US 7,301,269 B2Canon Kabushiki Kaisha
- Ion milling device13 Jun 2024US 2024/0194443 A1Hitachi High-Tech Corporation
- Ion trap6 Oct 2022US 2022/0319828 A1Thermo Fisher Scientific (Bremen) GmbH
- Dynamic ion filter for reducing highly abundant ions16 Sep 2021US 2021/0287895 A1Analytik Jena AG
- Electron beam emission device14 Sep 2017US 2017/0263411 A1Korea Institute of Industrial Technology
- Beam focusing and accelerating system29 Dec 2016US 2016/0379793 A1The Queen's University of Belfast
Most cited
By later US patents
- Electron source and electron beam apparatus48US 5,594,296 ACanon Kabushiki Kaisha · 1997
- Field emission device and method of operation48US 6,566,804 B1Motorola, Inc. · 2003
- Cathode-ray tube and semiconductor device for use in such a cathode-ray tube23US 4,574,216 AU. S. Philips Corporation · 1986
- Hydrocarbon getter pump21US 4,515,528 AGeneral Electric Company · 1985
- Display element19US 5,126,620 AMitsubishi Denki Kabushiki Kaisha · 1992