C01F 17/229
Lanthanum oxides or hydroxides
C01F17/229 (Lanthanum oxides or hydroxides) appears on 71 US grants and 78 published applications in this corpus.
Search patents in C01F- Granted patents
- 71
- Published applications
- 78
- Assignees
- 71
- Inventors
- 223
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 1 |
| 2006 | 3 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 4 |
| 2009 | 3 | 3 |
| 2010 | 2 | 1 |
| 2011 | 4 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 5 |
| 2014 | 4 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 5 |
| 2017 | 3 | 4 |
| 2018 | 6 | 6 |
| 2019 | 6 | 3 |
| 2020 | 5 | 7 |
| 2021 | 1 | 5 |
| 2022 | 3 | 5 |
| 2023 | 1 | 0 |
| 2024 | 4 | 3 |
| 2025 | 2 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method for rare earths extraction14 Apr 2026US 12,600,645 B2
- Metal-supported material and ammonia synthesis catalyst17 Mar 2026US 12,577,121 B2Japan Science and Technology Agency
- Lanthanum hydroxide /lanthanum oxide/calcium silicate/graphitic carbon nitride particulate crystalline nanocomposite2 Dec 2025US 12,486,177 B1Imam Mohammad Ibn Saud Islamic University
- Nanocrystal-sized cerium-zirconium-aluminum oxide material and method of making the same18 Feb 2025US 12,227,428 B2Pacific Industrial Development Corporation
- Nano metal oxides, preparation method therefor, and use therefor20 Aug 2026US 2026/0242238 A1
- Cerium oxide-based polishing powder and preparation method, polishing solution and use thereof23 Jul 2026US 2026/0209583 A1Grirem Advanced Materials Co., Ltd.
- Monodispersed spherical rare earth oxides18 Jun 2026US 2026/0167514 A1Neo Performance Materials (Singapore) Pte. Ltd.
- La2o3-rgo nanocomposite-based humidity sensor device and its fabrication method thereof9 Oct 2025US 2025/0314606 A1Princess Nourah Bint Abdulrahman University
- Method for recovering solid state electrolyte from all-solid-state-battery17 Jul 2025US 2025/0233222 A1Korea Institute of Geoscience and Mineral Resources
Most cited
By later US patents
- Nanowire catalysts and methods for their use and preparation64US 8,962,517 B2Siluria Technologies, Inc. · 2015
- Finely divided metal oxides and sintered objects therefrom60US 4,065,544 AUnion Carbide Corporation · 1977
- Production of ethylene with nanowire catalysts44US 9,718,054 B2Siluria Technologies, Inc. · 2017
- Nanowire catalysts and methods for their use and preparation36US 9,751,818 B2Siluria Technologies, Inc. · 2017
- Production of ethylene with nanowire catalysts34US 10,195,603 B2Siluria Technologies, Inc. · 2019