H01J 29/64
Magnetic lenses
H01J29/64 (Magnetic lenses) appears on 84 US grants and 16 published applications in this corpus.
Search patents in H01J- Granted patents
- 84
- Published applications
- 16
- Assignees
- 31
- Inventors
- 94
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 0 |
| 2002 | 3 | 2 |
| 2003 | 5 | 1 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 3 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Systems and methods for electron beam focusing in electron beam additive manufacturing19 Nov 2024US 12,148,592 B2General Electric Company
- Systems and methods for electron beam focusing in electron beam additive manufacturing5 Dec 2023US 11,837,428 B2General Electric Company
- Precision alignment system for millimeter wave sources2 May 2023US 11,640,893 B1Dymenso LLC
- Electron transparent membrane for cold cathode devices10 Nov 2020US 10,832,885 B2Massachusetts Institute of Technology
- Compact deflecting magnet25 Jun 2019US 10,332,718 B1Imatrex, Inc.
- Systems and methods for electron beam focusing in electron beam additive manufacturing22 Feb 2024US 2024/0062983 A1General Electric Company
- Precision Alignment System for Millimeter Wave Sources18 May 2023US 2023/0154717 A1Dymenso LLC
- Systems and methods for electron beam focusing in electron beam additive manufacturing3 Feb 2022US 2022/0037105 A1General Electric Company
- Compact deflecting magnet22 Aug 2019US 2019/0259565 A1Imatrex, Inc.
- Compact deflecting magnet27 Jun 2019US 2019/0198286 A1Imatrex, Inc.
Most cited
By later US patents
- Flat tube display apparatus40US 5,227,691 AMatsushita Electric Industrial Co., Ltd. · 1993
- Magnetic focusing system with improved symmetry and manufacturability16US 5,506,482 AMitsubishi Denki Kabushiki Kaisha · 1996
- Method of forming perforated metal/ferrite laminated magnet13US 5,857,883 AInternational Business Machines Corporation · 1999
- Auto-stereoscopic display device and system13US 6,275,254 B1International Business Machines Corporation · 2001
- Focus magnet with separate static and dynamic control coils12US 5,113,162 AHitachi Metals, Ltd. · 1992