H01J 3/023
Electron guns using electron multiplication
Official title: {Electron guns using electron multiplication}
H01J3/023 (Electron guns using electron multiplication) appears on 13 US grants and 15 published applications in this corpus.
Search patents in H01J- Granted patents
- 13
- Published applications
- 15
- Assignees
- 12
- Inventors
- 35
- Latest grant
- 16 Oct 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 3 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Energy radiation generator with bi-polar voltage ladder16 Oct 2018US 10,102,998 B2Schlumberger Technology Corporation
- Energy radiation generator with bi-polar voltage ladder31 Oct 2017US 9,805,902 B2Schlumberger Technology Corporation
- Energy radiation generator with uni-polar voltage ladder31 Oct 2017US 9,805,903 B2Schlumberger Technology Corporation
- Cold electron number amplifier10 Jun 2014US 8,750,458 B1Moxtek, Inc.
- Miniature, low-power X-ray tube using a microchannel electron generator electron source20 Dec 2011US 8,081,734 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Energy radiation generator with bi-polar voltage ladder1 Mar 2018US 2018/0061610 A1Schlumberger Technology Corporation
- Electron source and X-ray fluorescence analyser using an electron source5 Mar 2015US 2015/0060663 A1Fenno-Aurum Oy
- Energy Radiation Generator With Bi-Polar Voltage Ladder26 Feb 2015US 2015/0055747 A1Schlumberger Technology Corporation
- Energy Radiation Generator With Uni-Polar Voltage Ladder26 Feb 2015US 2015/0055748 A1Schlumberger Technology Corporation
- Miniature, Low-Power X-Ray Tube Using A Microchannel Electron Generator Electron Source5 Aug 2010US 2010/0195801 A1U.S.A. as represented by the Adminstrator of the National Aeronautics and Space Administration
Most cited
By later US patents
- Electric discharge element8US 5,270,611 AU. S. Philips Corporation · 1993
- Robust pierce gun having multiple transmitting and emitting section6US 6,642,657 B22003
- Electron bombardment of wide bandgap semiconductors for generating high brightness and narrow energy spread emission electrons4US 7,005,795 B2The Board of Trustees of the Leland Stanford Junior University · 2006
- Electron gun having multiple transmitting and emitting sections3US 6,633,129 B22003
- Miniature, low-power X-ray tube using a microchannel electron generator electron source3US 8,081,734 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2011