H01J 2201/3426
Alkaline metal compounds
Official title: Alkaline metal compounds, e.g. Na-K-Sb
H01J2201/3426 (Alkaline metal compounds) appears on 39 US grants and 15 published applications in this corpus.
Search patents in H01J- Granted patents
- 39
- Published applications
- 15
- Assignees
- 17
- Inventors
- 79
- Latest grant
- 14 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 4 |
| 2020 | 6 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Gas electron multiplier board photomultiplier14 Dec 2021US 11,201,041 B2Baker Hughes Holdings LLC
- Photocathode designs and methods of generating an electron beam using a photocathode13 Oct 2020US 10,804,069 B2KLA-Tencor Corporation
- Electron beam generation and measurement18 Aug 2020US 10,748,737 B2KLA-Tencor Corporation
- Metal encapsulated photocathode electron emitter14 Jul 2020US 10,714,295 B2KLA-Tencor Corporation
- Silicon electron emitter designs31 Mar 2020US 10,607,806 B2KLA-Tencor Corporation
- Electron gun, electron ray applying device, and electron beam projecting method20 Jul 2023US 2023/0230794 A1Photo electron Soul Inc.
- Gas electron multiplier board photomultiplier5 Aug 2021US 2021/0242002 A1Baker Hughes Holdings LLC
- Photocathode designs and methods of generating an electron beam using a photocathode9 Apr 2020US 2020/0111637 A1KLA-Tencor Corporation
- Metal encapsulated photocathode electron emitter19 Mar 2020US 2020/0090895 A1KLA-Tencor Corporation
- Silicon electron emitter designs11 Apr 2019US 2019/0108963 A1KLA-Tencor Corporation
Most cited
By later US patents
- Laser stimulated high current density photoelectron generator and method of manufacture235US 4,460,831 AThermo Electron Corporation · 1984
- Microchannel electron multipliers35US 5,086,248 AGalileo Electro-Optics Corp. · 1992
- Method of manufacturing microchannel electron multipliers27US 5,205,902 AGalileo Electro-Optics Corp. · 1993
- Photomultiplier18US 5,619,100 AHamamatsu Photonics K.K. · 1997
- Photomultiplier for cascade-multiplying photoelectrons16US 5,532,551 AHamamatsu Photonics K.K. · 1996