C01F 17/224
Oxides or hydroxides of lanthanides
C01F17/224 (Oxides or hydroxides of lanthanides) appears on 470 US grants and 573 published applications in this corpus.
Search patents in C01F- Granted patents
- 470
- Published applications
- 573
- Assignees
- 318
- Inventors
- 1,309
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 11 |
| 2003 | 12 | 16 |
| 2004 | 13 | 18 |
| 2005 | 7 | 16 |
| 2006 | 12 | 23 |
| 2007 | 8 | 17 |
| 2008 | 8 | 17 |
| 2009 | 16 | 25 |
| 2010 | 8 | 31 |
| 2011 | 21 | 24 |
| 2012 | 15 | 15 |
| 2013 | 14 | 25 |
| 2014 | 16 | 19 |
| 2015 | 18 | 30 |
| 2016 | 21 | 23 |
| 2017 | 19 | 24 |
| 2018 | 26 | 29 |
| 2019 | 23 | 38 |
| 2020 | 15 | 22 |
| 2021 | 20 | 28 |
| 2022 | 21 | 27 |
| 2023 | 19 | 24 |
| 2024 | 12 | 19 |
| 2025 | 18 | 30 |
| 2026 | 9 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nucleation-inhibiting coating containing rare earth compounds and devices incorporating same15 Sep 2026US 12,740,286 B2OTI Lumionics Inc.
- Production of stable and uniformly dispersed nanoparticles30 Jun 2026US 12,668,500 B2Tata Consultancy Services Limited
- Method and system for supercritical fluid extraction of metal23 Jun 2026US 12,662,390 B2The Governing Council of the University of Toronto
- Aqueous dispersion comprising inorganic particles12 May 2026US 12,624,252 B2Bead Origin Inc.
- Method for preparing rare earth oxide by recycling ammonia and carbon and use of rare earth oxide14 Apr 2026US 12,600,644 B2Baotou Research Institute of Rare Earths
- Modified cerium oxide polishing solution for shallow trench isolation and preparation method thereof1 Oct 2026US 2026/0297378 A1Inner Mongolia University
- Water restricted synthesis of enzyme mimetic cerium oxide and silver cerium oxide composite nanoparticles10 Sep 2026US 2026/0265075 A1Kismet Technologies Inc.
- Method for producing hydrophilized product3 Sep 2026US 2026/0262482 A1Resonac Corporation
- Abrasive grains and selection method therefor, polishing fluid, multi-component polishing fluid, polishing method, component manufacturing method, and semiconductor component manufacturing method27 Aug 2026US 2026/0250548 A1
- Slurry and polishing method27 Aug 2026US 2026/0250550 A1
Most cited
By later US patents
- Method of producing nanoscale powders by quenching of vapors219US 5,788,738 ANanomaterials Research Corporation · 1998
- Integrated thermal process for the continuous synthesis of nanoscale powders213US 5,851,507 ANanomaterials Research Corporation · 1998
- Very high purity fine powders and methods to produce such powders142US 6,569,397 B12003
- Composite nanoparticle materials and method of making the same118US 7,052,777 B2Nanophase Technologies Corporation · 2006
- High purity fine metal powders and methods to produce such powder117US 6,786,950 B2NanoProducts Corporation · 2004