G21F 9/04
Treating liquids
G21F9/04 (Treating liquids) appears on 1,368 US grants and 809 published applications in this corpus.
Search patents in G21F- Granted patents
- 1,368
- Published applications
- 809
- Assignees
- 716
- Inventors
- 3,138
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 27 | 0 |
| 1978 | 17 | 0 |
| 1979 | 19 | 0 |
| 1980 | 23 | 0 |
| 1981 | 33 | 0 |
| 1982 | 23 | 0 |
| 1983 | 27 | 0 |
| 1984 | 37 | 0 |
| 1985 | 20 | 0 |
| 1986 | 26 | 0 |
| 1987 | 37 | 0 |
| 1988 | 28 | 0 |
| 1989 | 41 | 0 |
| 1990 | 39 | 0 |
| 1991 | 25 | 0 |
| 1992 | 33 | 0 |
| 1993 | 26 | 0 |
| 1994 | 29 | 0 |
| 1995 | 29 | 0 |
| 1996 | 30 | 0 |
| 1997 | 40 | 0 |
| 1998 | 33 | 0 |
| 1999 | 37 | 0 |
| 2000 | 24 | 0 |
| 2001 | 28 | 8 |
| 2002 | 28 | 16 |
| 2003 | 16 | 14 |
| 2004 | 14 | 20 |
| 2005 | 9 | 6 |
| 2006 | 21 | 20 |
| 2007 | 6 | 21 |
| 2008 | 7 | 22 |
| 2009 | 12 | 32 |
| 2010 | 25 | 28 |
| 2011 | 15 | 29 |
| 2012 | 17 | 37 |
| 2013 | 33 | 38 |
| 2014 | 35 | 48 |
| 2015 | 36 | 49 |
| 2016 | 39 | 52 |
| 2017 | 34 | 47 |
| 2018 | 36 | 46 |
| 2019 | 41 | 52 |
| 2020 | 40 | 37 |
| 2021 | 29 | 35 |
| 2022 | 33 | 42 |
| 2023 | 23 | 34 |
| 2024 | 21 | 32 |
| 2025 | 25 | 23 |
| 2026 | 18 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- UV reaction apparatus for treating waste liquid caused by system decontamination in nuclear power plant18 Aug 2026US 12,709,556 B2Korea Hydro & Nuclear Power Co., Ltd.
- Monitoring a hazardous waste repository11 Aug 2026US 12,703,017 B2Deep Isolation, Inc.
- Layered absorbent substrate incorporating activated carbon and superabsorbent materials7 Jul 2026US 12,673,229 B2Star Liberty LLC
- Methods of use and manufacture of silver-doped, nano-porous hydroxyapatite9 Jun 2026US 12,649,143 B2Mo-Sci Corporation
- Granulated adsorbent and process of producing the same2 Jun 2026US 12,643,090 B2FUSO Corporation
- Stepwise Chemical Separation Methods and Systems Using Resin Packed Columns20 Aug 2026US 2026/0245761 A1SHINE Technologies, LLC
- Method for stabilizing and immobilizing uranium at source via formation of mineral film mediated by microorganisms13 Aug 2026US 2026/0237533 A1
- Manufacturing facility6 Aug 2026US 2026/0225060 A1
- Supply device for supplying liquid waste to low-temperature melting furnace, and supply method using same23 Jul 2026US 2026/0210635 A1Korea Hydro & Nuclear Power Co., Ltd.
- Liquid radioactive waste input system25 Jun 2026US 2026/0179801 A1Korea Hydro & Nuclear Power Co., Ltd.
Most cited
By later US patents
- Apparatus for filtration of a suspension116US 4,540,490 AJgc Corporation · 1985
- Method for treating mixed radioactive waste111US 5,745,861 AMolten Metal Technology, Inc. · 1998
- Method and apparatus for hydraulic embedment of waste in subterranean formations85US 5,318,382 A1994
- Supercritical fluid extraction80US 5,356,538 AIdaho Research Foundation, Inc. · 1994
- Method and apparatus for subterranean containment of hazardous waste material78US 5,387,741 A1995