G21G 4/02
Neutron sources
G21G4/02 (Neutron sources) appears on 178 US grants and 205 published applications in this corpus.
Search patents in G21G- Granted patents
- 178
- Published applications
- 205
- Assignees
- 111
- Inventors
- 404
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 6 |
| 2011 | 1 | 6 |
| 2012 | 3 | 7 |
| 2013 | 5 | 9 |
| 2014 | 8 | 5 |
| 2015 | 7 | 12 |
| 2016 | 7 | 13 |
| 2017 | 10 | 15 |
| 2018 | 10 | 13 |
| 2019 | 12 | 15 |
| 2020 | 22 | 28 |
| 2021 | 9 | 19 |
| 2022 | 15 | 11 |
| 2023 | 14 | 13 |
| 2024 | 12 | 8 |
| 2025 | 12 | 11 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio frequency quadrupole linear accelerator, neutron source system, and radio frequency quadrupole linear accelerator manufacturing method29 Sep 2026US 12,750,943 B2Riken
- Fast-neutron flux radiating device with an improved support for a target of radiations and radiating method thereof25 Aug 2026US 12,718,964 B2ENEA - Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile
- Systems and methods employing interchangeable ion beam targets18 Aug 2026US 12,712,092 B2SHINE Technologies, LLC
- Neutron generation using pyroelectric crystals23 Jun 2026US 12,666,522 B2Lawrence Livermore National Security, LLC
- System and method for stellarator neutron source24 Feb 2026US 12,562,286 B2The Trustees of Princeton University
- Methods of forming radioactive articles and related radioactive articles10 Sep 2026US 2026/0269096 A1Battelle Energy Alliance, LLC
- Radio frequency quadrupole linear accelerator, neutron source system, and radio frequency quadrupole linear accelerator manufacturing method21 May 2026US 2026/0143579 A1Riken
- Support structure for charged particle beam target30 Apr 2026US 2026/0122753 A1
- Compact neutron generator based on an all-glass helicon wave ion source30 Apr 2026US 2026/0122754 A1Hefei Comprehensive National Science Center Energy Research Institute (Anhui Energy Laboratory)
- Scandium target for a neutron generator for wellbore logging12 Mar 2026US 2026/0072195 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Automatic radioisotope filling apparatus81US 4,853,546 AUbe Industries, Ltd. · 1989
- Spallation device for producing neutrons37US 6,895,064 B2Commissariat A L' Energie Atomique · 2005
- Dense plasma focus apparatus26US 7,679,025 B12010
- Neutron brachytherapy device and method17US 6,352,500 B1Isotron, Inc. · 2002
- Gas cooled nuclear reactor with a pebble bed of spherical operating elements16US 5,019,322 AHochtemperatur-Reaktorbau GmbH · 1991