G01N 2223/617
Ash in coal
Official title: ash in coal
G01N2223/617 (Ash in coal) appears on 16 US grants and 7 published applications in this corpus.
Search patents in G01N- Granted patents
- 16
- Published applications
- 7
- Assignees
- 10
- Inventors
- 28
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for predicting the presence of rare earth elements14 Apr 2026US 12,601,697 B2Microbeam Technologies, Inc.
- System and method for predicting the presence of rare earth elements22 Aug 2023US 11,733,184 B2Microbeam Technologies, Inc.
- Apparatus and method for analysing and processing granular material6 Dec 2022US 11,519,868 B2Sorterra Global Pty Ltd
- On-belt analyser system17 Jul 2018US 10,024,810 B2Scantech International Pty Ltd
- System and method for measuring ash content and calorified value of coal10 Feb 2015US 8,953,741 B2Tsinghua University
- System and method for predicting the presence of rare earth elements4 Jan 2024US 2024/0003836 A1Microbeam Technologies, Inc.
- System and method for predicting the presence of rare earth elements11 Aug 2022US 2022/0252530 A1Microbeam Technologies, Inc.
- Apparatus and method for analysing and processing granular material4 Feb 2021US 2021/0033547 A1Sorterra Global Pty Ltd
- On-belt analyser system1 Aug 2013US 2013/0193328 A1Scantech International Pty Ltd
- System and method for measuring ash content and calorified value of coal25 Apr 2013US 2013/0101087 A1Tsinghua University
Most cited
By later US patents
- Self-contained, on-line, real-time bulk material analyzer46US 4,582,992 AGamma-Metrics · 1986
- Apparatus for controlling neutrons escaping from an elemental analyzer measuring gamma rays arising from neutron capture in bulk substances33US 4,266,132 AMDH Industries, Inc. · 1981
- Method of and apparatus for sensing the ash content of coal26US 4,486,894 ACoal Industry (Patents) Limited · 1984
- Apparatus for reducing pulse pileup in an elemental analyzer measuring gamma rays arising from neutron capture in bulk substances22US 4,152,596 AMDH Industries, Inc. · 1979
- Annihilation radiation analysis14US 4,415,804 AAustralian Atomic Energy Commission · 1983