H01J 47/026
Gas flow ionisation chambers
Official title: {Gas flow ionisation chambers}
H01J47/026 (Gas flow ionisation chambers) appears on 17 US grants and 13 published applications in this corpus.
Search patents in H01J- Granted patents
- 17
- Published applications
- 13
- Assignees
- 15
- Inventors
- 50
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for measuring radon and thoron by using ionization chamber18 Jun 2024US 12,013,500 B2Ftlab Co., Ltd.
- Methods and apparatus for predicting performance of a measurement method, measurement method and apparatus11 Apr 2023US 11,626,704 B2ASML Netherlands B. V.
- Low pressure wire ion plasma discharge source, and application to electron source with secondary emission1 Sep 2020US 10,763,070 B2Laser Systems & Solutions of Europe
- Systems and methods for monitoring radiation in well logging26 May 2020US 10,663,617 B2Schlumberger Technology Corporation
- Spherical device for detecting particles or radiation6 Mar 2018US 9,911,581 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Method and apparatus for detecting particles in a gas of a process environment as well as a coating system with such an apparatus15 Jan 2026US 2026/0018396 A1Inficon GmbH
- Apparatus for measuring radon and thoron by using ionization chamber19 Aug 2021US 2021/0255339 A1Ftlab Co., Ltd.
- Apparatus for Measuring Ionizing Radiation25 Jun 2020US 2020/0200922 A1BERTHOLD TECHNOLOGIES GmbH & Co.KG
- Low pressure wire ion plasma discharge source, and application to electron source with secondary emission24 Jan 2019US 2019/0027336 A1Laser Systems & Solutions of Europe
- Methods and Apparatus for Predicting Performance of a Measurement Method, Measurement Method and Apparatus6 Sep 2018US 2018/0254597 A1ASML Netherlands B. V.
Most cited
By later US patents
- Ionization chamber for monitoring radioactive gas28US 4,853,536 ARad Elec Inc. · 1989
- Electret ionization chamber for monitoring radium and dissolved radon in water27US 5,055,674 ARad Elec Inc. · 1991
- Long range alpha particle detector24US 5,184,019 AThe United States of America as represented by the United States Department of Energy · 1993
- Electret gamma/X-ray low level dosimeter17US 5,008,540 ARad Elec Inc. · 1991
- Single and double grid long-range alpha detectors16US 5,194,737 AUniversity of California Patent, Trademark & Copyright Office · 1993