G21G 4/04
Radioactive sources other than neutron sources
Official title: Radioactive sources other than neutron sources (radioactive dressings A61N5/1029)
G21G4/04 (Radioactive sources other than neutron sources) appears on 391 US grants and 387 published applications in this corpus.
Search patents in G21G- Granted patents
- 391
- Published applications
- 387
- Assignees
- 231
- Inventors
- 925
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 12 | 0 |
| 2001 | 7 | 2 |
| 2002 | 13 | 5 |
| 2003 | 12 | 20 |
| 2004 | 10 | 19 |
| 2005 | 7 | 11 |
| 2006 | 12 | 21 |
| 2007 | 11 | 13 |
| 2008 | 3 | 16 |
| 2009 | 19 | 15 |
| 2010 | 5 | 17 |
| 2011 | 9 | 6 |
| 2012 | 8 | 4 |
| 2013 | 8 | 12 |
| 2014 | 10 | 13 |
| 2015 | 6 | 8 |
| 2016 | 9 | 12 |
| 2017 | 13 | 19 |
| 2018 | 9 | 15 |
| 2019 | 12 | 21 |
| 2020 | 17 | 20 |
| 2021 | 10 | 19 |
| 2022 | 20 | 18 |
| 2023 | 15 | 17 |
| 2024 | 20 | 23 |
| 2025 | 17 | 22 |
| 2026 | 15 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Materials and processes for generating radioisotopes6 Oct 2026US 12,755,857 B2AdvanCell IPCo US No. 1 Pty Ltd
- Purification process for the preparation of non-carrier added copper-6429 Sep 2026US 12,749,589 B2Curium US LLC
- Purification process for the preparation of non-carrier added copper-648 Sep 2026US 12,731,702 B2Curium US LLC
- Copper-64 compositions and formulations25 Aug 2026US 12,718,963 B1Curium US LLC
- Barium-based standards and associated devices, systems, and methods4 Aug 2026US 12,700,518 B2International Isotopes, Inc.
- Purification process for the preparation of non-carrier added copper-6417 Sep 2026US 2026/0279612 A1Curium US LLC
- Alpha-Emitting Isotope Generator and Method for Producing Alpha-Emitting Isotope17 Sep 2026US 2026/0279613 A1TAG1 Inc.
- Noble Gas-Based Nuclear Voltaic Power Source Using Radioisotopes in Aerosol Form10 Sep 2026US 2026/0269097 A1Nubatt Pte. Ltd.
- Radionuclide production system and radionuclide production method27 Aug 2026US 2026/0253758 A1Hitachi High-Tech Corporation
- Radioisotope source13 Aug 2026US 2026/0237534 A1AdvanCell Pty Limited
Most cited
By later US patents
- Endocurietherapy293US 5,342,283 A1994
- Hollow-tube brachytherapy device186US 5,713,828 AInternational Brachytherapy s.a. · 1998
- Radioactive medical device and process155US 6,010,445 AImplant Sciences Corporation · 2000
- X-ray-emitting interstitial implants149US 4,702,228 ATheragenics Corporation · 1987
- Pellet for a radioactive seed146US 5,163,896 ABest Industries, Inc. · 1992