C01F 17/276
Nitrates
C01F17/276 (Nitrates) appears on 54 US grants and 27 published applications in this corpus.
Search patents in C01F- Granted patents
- 54
- Published applications
- 27
- Assignees
- 37
- Inventors
- 120
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 3 | 3 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 4 |
| 2019 | 3 | 0 |
| 2020 | 2 | 0 |
| 2021 | 1 | 4 |
| 2022 | 0 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for supercritical fluid extraction of metal23 Jun 2026US 12,662,390 B2The Governing Council of the University of Toronto
- Preparation of acid-deficient uranyl nitrate solutions2 Jan 2024US 11,858,825 B2X-energy, LLC
- Method of preparing an organic-inorganic hybrid nanoflower4 Jul 2023US 11,692,188 B2Guilin University of Technology
- Organic-inorganic hybrid nanoflower and preparation method thereof16 Nov 2021US 11,174,476 B2Guilin University of Technology
- Alloy identification device6 Oct 2020US 10,794,858 B2Palo Alto Research Center Incorporated
- Rare earth metal extracting bacterial consortia23 Oct 2025US 2025/0327018 A1
- Rare earth auxiliary agent and preparation method therefor12 Dec 2024US 2024/0409428 A1Inner Mongolia University of Science & Technology
- Methods of recovering rare earth metals17 Aug 2023US 2023/0257278 A1
- Rare earth metal extracting bacterial consortia17 Aug 2023US 2023/0257694 A1
- Method for thermal barrier coating production by recycling thermal barrier coating materials22 Dec 2022US 2022/0402767 A1Xylon Technical Ceramics, Inc.
Most cited
By later US patents
- Extraction of metals using supercritical fluid and chelate forming legand71US 5,730,874 AIdaho Research Foundation, Inc. · 1998
- Method for extracting lanthanides and actinides from acid solutions45US 4,548,790 AThe United States of America as represented by the United States Department of Energy · 1985
- Fluid extraction34US 5,965,025 AIdaho Research Foundation, Inc. · 1999
- Liquid/liquid extraction/purification of impure solutions of rare earth values31US 4,726,938 ARhone-Poulenc Specialites Chimiques · 1988
- Separation of rare earth values by liquid/liquid extraction28US 5,192,443 ARhone-Poulenc Chimie · 1993