H01J 61/64
Cathode glow lamps
H01J61/64 (Cathode glow lamps) appears on 44 US grants and 4 published applications in this corpus.
Search patents in H01J- Granted patents
- 44
- Published applications
- 4
- Assignees
- 19
- Inventors
- 64
- Latest grant
- 7 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 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 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Solution glow discharge plasma chamber with lens7 Mar 2023US 11,598,727 B12S Water Incorporated
- Hollow cathode lamp15 Apr 2003US 6,548,958 B2Hamamatsu Photonics K.K.
- Discharge device having cathode with micro hollow array11 Feb 2003US 6,518,692 B2Old Dominion University
- Direct current high-pressure glow discharges13 Aug 2002US 6,433,480 B1Old Dominion University
- High electric field, high pressure light source4 Jun 2002US 6,400,089 B1Rutgers, The State University
- Solution Glow Discharge Plasma Chamber with Lens23 Feb 2023US 2023/0059823 A12 S Water Incorporated
- Multi Micro-Hollow Cathode Light Source and Multi-Atomic Simulataneous Absorption Spectrum Analyzer17 Dec 2009US 2009/0310134 A1
- Discharge device having cathode with micro hollow array28 Mar 2002US 2002/0036461 A1Osram Sylvania Inc.
- Hollow cathode lamp3 Jan 2002US 2002/0000775 A1Hamamatsu Photonics K.K.
Most cited
By later US patents
- Discharge device having cathode with micro hollow array70US 5,686,789 AOsram Sylvania Inc. · 1997
- Discharge device having cathode with micro hollow array60US 5,939,829 AOsram Sylvania Inc. · 1999
- Direct current high-pressure glow discharges43US 6,433,480 B1Old Dominion University · 2002
- Pulsed plasma radiation device for emitting light in biologically significant spectral bands35US 6,328,760 B12001
- Discharge device having cathode with micro hollow array27US 6,346,770 B1Old Dominion University · 2002