H01J 31/505
Flat tubes
Official title: {flat tubes, e.g. proximity focusing tubes}
H01J31/505 (Flat tubes) appears on 50 US grants and 3 published applications in this corpus.
Search patents in H01J- Granted patents
- 50
- Published applications
- 3
- Assignees
- 23
- Inventors
- 55
- Latest grant
- 4 Aug 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 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 | 1 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Wafer scale image intensifier4 Aug 2020US 10,734,184 B1Elbit Systems of America, LLC
- Passive local area saturation of electron bombarded gain4 Jun 2019US 10,312,047 B1Eagle Technology, LLC
- Unitary vacuum tube incorporating high voltage isolation5 Feb 2008US 7,325,715 B2Interac, Inc.
- Emissive screen display with laser-based external addressing16 Oct 2007US 7,283,301 B2Palo Alto Research Center Incorporated
- Unitary vacuum tube incorporating high voltage isolation4 Jan 2005US 6,837,766 B2Intevac, Inc.
- Emissive screen display with laser-based external addressing22 Jun 2006US 2006/0132472 A1Palo Alto Research Center Incorporated
- Unitary vacuum tube incorporating high voltage isolation25 Nov 2004US 2004/0232834 A1Interac, Inc.
- Unitary vacuum tube incorporating high voltage isolation24 Jul 2003US 2003/0137243 A1Intevac, Inc.
Most cited
By later US patents
- Microchannel image intensifier tube with novel sealing feature66US 5,369,267 AIntevac, Inc. · 1994
- Silicon avalanche photodiode array63US 5,021,854 AXsirius Photonics, Inc. · 1991
- X-ray intensifier detector system for x-ray electronic radiography42US 4,426,721 ADiagnostic Information, Inc. · 1984
- Emissive screen display with laser-based external addressing42US 7,283,301 B2Palo Alto Research Center Incorporated · 2007
- Unitary vacuum tube incorporating high voltage isolation41US 6,837,766 B2Intevac, Inc. · 2005