G05F 1/42
Discharge tubes only
Official title: discharge tubes only
G05F1/42 (Discharge tubes only) appears on 5 US grants and 3 published applications in this corpus.
Search patents in G05F- Granted patents
- 5
- Published applications
- 3
- Assignees
- 4
- Inventors
- 8
- Latest grant
- 26 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Low voltage tube circuits26 Feb 2019US 10,216,205 B2
- Soft start circuit and method for DC-DC voltage regulator19 Jun 2018US 10,001,794 B2Analog Devices, Inc.
- Power supply apparatus, control apparatus, and program therefor26 Sep 2017US 9,774,249 B2Fujitsu Limited
- Remote monitoring of glow tube light output including a logic unit maintaining an indication of a monitored glow tube discharge while no discharge is detected9 Sep 2014US 8,829,412 B1DGI Creations, LLC
- Electronic device for controlling the brightness of an electric gas discharge lamp without an incandescent cathode16 Mar 1982US 4,320,326 AElstrom Electronic AG
Most cited
By later US patents
- Electronic device for controlling the brightness of an electric gas discharge lamp without an incandescent cathode6US 4,320,326 AElstrom Electronic AG · 1982
- Soft start circuit and method for DC-DC voltage regulator1US 10,001,794 B2Analog Devices, Inc. · 2018
- Remote monitoring of glow tube light output including a logic unit maintaining an indication of a monitored glow tube discharge while no discharge is detected1US 8,829,412 B1DGI Creations, LLC · 2014