G21F 9/007
Recovery of isotopes from radioactive waste
Official title: {Recovery of isotopes from radioactive waste, e.g. fission products (separating different isotopes of the same chemical element B01D59/00)}
G21F9/007 (Recovery of isotopes from radioactive waste) appears on 75 US grants and 33 published applications in this corpus.
Search patents in G21F- Granted patents
- 75
- Published applications
- 33
- Assignees
- 58
- Inventors
- 200
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 3 |
| 2019 | 3 | 3 |
| 2020 | 2 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for the purification of molybdenum-99 with phase transfer agents14 Oct 2025US 12,441,626 B2Abilene Christian University
- Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium25 Mar 2025US 12,260,967 B2Curio Solutions LLC
- Method for pre-separation of nuclides in spent fuel18 Feb 2025US 12,230,411 B2
- Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium6 Feb 2024US 11,894,154 B2Curio Solutions LLC
- Systems and methods for removing particulates of a fissile material28 Mar 2023US 11,612,847 B2Global Nuclear Fuel - Americas, LLC
- Enhanced oxidative decladding technology for recovery of used nuclear fuel24 Sep 2026US 2026/0290639 A1Curio Solutions LLC
- Decontamination and regeneration of irradiated graphite11 Jun 2026US 2026/0159986 A1Jacobs U.K. Limited
- Radionuclide separating apparatus and fluid recovery method using the same19 Mar 2026US 2026/0081049 A1Korea Atomic Energy Research Institute
- Methods for the Purification of Molybdenum-99 with Phase Transfer Agents3 Apr 2025US 2025/0109035 A1Abilene Christian University
- Systems and methods for the production of acid deficient uranyl nitrate from a dilute uranyl nitrate solution via diffusion dialysis and vacuum distillation12 Dec 2024US 2024/0408548 A1X-energy, LLC
Most cited
By later US patents
- Process and apparatus for the production of BI-213 cations32US 5,854,968 AArch Development Corporation · 1998
- Process for recovering molybdenum-99 from a matrix containing neutron irradiated fissionable materials and fission products25US 4,094,953 AGesellschaft fur Kernforschung m.b.H. · 1978
- Method of controlling the production of radioactive materials from a subterranean reservoir25US 5,196,124 AGroundwater Services, Inc. · 1993
- Method for the concentration and separation of actinides from biological and environmental samples24US 4,835,107 AArch Development Corporation · 1989
- Methods of separating short half-life radionuclides from a mixture of radionuclides23US 5,809,394 ABattelle Memorial Institute · 1998