H01J 29/94
Selection of substances for gas fillings
Official title: Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering {(exhausting, degassing, gettering of electric discharge tubes in general H01J9/38)}
H01J29/94 (Selection of substances for gas fillings) appears on 260 US grants and 104 published applications in this corpus.
Search patents in H01J- Granted patents
- 260
- Published applications
- 104
- Assignees
- 85
- Inventors
- 440
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 20 | 0 |
| 1999 | 23 | 0 |
| 2000 | 17 | 0 |
| 2001 | 11 | 7 |
| 2002 | 11 | 8 |
| 2003 | 14 | 13 |
| 2004 | 7 | 6 |
| 2005 | 11 | 5 |
| 2006 | 7 | 22 |
| 2007 | 5 | 13 |
| 2008 | 10 | 10 |
| 2009 | 7 | 4 |
| 2010 | 5 | 2 |
| 2011 | 7 | 4 |
| 2012 | 0 | 4 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Stabilized evaporable getter for increased handleability22 Apr 2025US 12,281,896 B2Honeywell International Inc.
- High temperature optical molecular anti-contamination getter system19 Oct 2021US 11,152,759 B2Ipg Photonics Corporation
- Electron transparent membrane for cold cathode devices10 Nov 2020US 10,832,885 B2Massachusetts Institute of Technology
- Field emission cathode structure for a field emission arrangement4 Aug 2020US 10,734,180 B2Lightlab Sweden AB
- Getter support structure for a solar thermal power plant14 Feb 2017US 9,568,217 B2Siemens Concentrated Solar Power Ltd.
- Electron beam welding systems employing a plasma cathode9 May 2024US 2024/0153739 A1US Electron, Inc.
- Stabilized evaporable getter for increased handleability21 Mar 2024US 2024/0093998 A1Honeywell International Inc.
- Electron beam welding systems employing a plasma cathode1 Dec 2022US 2022/0384138 A1
- A field emission cathode structure for a field emission arrangement21 May 2020US 2020/0161071 A1Lightlab Sweden AB
- Electron transparent membrane for cold cathode devices27 Dec 2018US 2018/0374669 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Light-emitting device having light-reflective layer formed with, or/and adjacent to, material that enhances device performance211US 6,630,786 B2Candescent Intellectual Property Services, Inc. · 2003
- Image display device with cathode panel and gas absorbing getters63US 5,223,766 ASony Corporation · 1993
- Anode plate for flat panel display having silicon getter62US 5,614,785 ATexas Instruments Incorporated · 1997
- Panel display with dielectric spacer structure59US 5,619,097 AFED Corporation · 1997
- Anode plate for flat panel display having integrated getter57US 5,453,659 ATexas Instruments Incorporated · 1995