G21F 9/02
Treating gases
G21F9/02 (Treating gases) appears on 269 US grants and 171 published applications in this corpus.
Search patents in G21F- Granted patents
- 269
- Published applications
- 171
- Assignees
- 189
- Inventors
- 722
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 11 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 21 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 11 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 0 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 2 | 4 |
| 2013 | 0 | 15 |
| 2014 | 6 | 9 |
| 2015 | 11 | 14 |
| 2016 | 11 | 17 |
| 2017 | 8 | 7 |
| 2018 | 6 | 10 |
| 2019 | 12 | 10 |
| 2020 | 5 | 6 |
| 2021 | 4 | 11 |
| 2022 | 10 | 9 |
| 2023 | 2 | 7 |
| 2024 | 4 | 16 |
| 2025 | 8 | 11 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Particulate porous inorganic material based on a lead vanadate or phosphovanadate, useful for capturing and conditioning gaseous iodine30 Jun 2026US 12,667,821 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Materials and methods for iodine capture30 Jun 2026US 12,671,088 B2University of Houston System
- Reactor containment vessel vent system16 Jun 2026US 12,658,332 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Methods of use and manufacture of silver-doped, nano-porous hydroxyapatite9 Jun 2026US 12,649,143 B2Mo-Sci Corporation
- Filter for removing radioactive noble gas, filter unit and reactor containment vent system12 May 2026US 12,623,182 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Laser ablation decontamination system and method of using same1 Oct 2026US 2026/0301983 A1
- Materials and methods for iodine capture24 Sep 2026US 2026/0290827 A1University of Houston System
- Apparatus for removing dust emitted from melting furnace25 Jun 2026US 2026/0177320 A1Korea Hydro & Nuclear Power Co., Ltd.
- Method for integrated treatment of radioactive liquid waste generated during decommissioning of nuclear power plant18 Jun 2026US 2026/0171277 A1LCGen Co., Ltd.
- Air purification processing apparatus4 Jun 2026US 2026/0155270 A1Century, LLC
Most cited
By later US patents
- Method for treating mixed radioactive waste111US 5,745,861 AMolten Metal Technology, Inc. · 1998
- Radial plasma mass filter74US 6,322,706 B1Archimedes Technology Group, Inc. · 2001
- Method of encapsulating materials in a zeolite in a stable manner70US 4,414,005 AEuropean Atomic Energy Community (Euratom) · 1983
- Activation of water soluble amines by halogens for trapping methyl radioactive iodine from air streams67US 4,040,802 A1977
- Hydrogen permeatin membrane, process for its manufacture and use66US 4,589,891 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1986