C04B 35/4504
Containing rare earth oxides
Official title: {containing rare earth oxides}
C04B35/4504 (Containing rare earth oxides) appears on 420 US grants and 110 published applications in this corpus.
Search patents in C04B- Granted patents
- 420
- Published applications
- 110
- Assignees
- 199
- Inventors
- 829
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 14 | 0 |
| 1990 | 35 | 0 |
| 1991 | 58 | 0 |
| 1992 | 57 | 0 |
| 1993 | 38 | 0 |
| 1994 | 27 | 0 |
| 1995 | 20 | 0 |
| 1996 | 27 | 0 |
| 1997 | 17 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 3 |
| 2002 | 4 | 7 |
| 2003 | 9 | 8 |
| 2004 | 9 | 7 |
| 2005 | 2 | 4 |
| 2006 | 6 | 4 |
| 2007 | 1 | 3 |
| 2008 | 5 | 1 |
| 2009 | 2 | 4 |
| 2010 | 3 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 2 |
| 2013 | 0 | 3 |
| 2014 | 3 | 2 |
| 2015 | 2 | 6 |
| 2016 | 2 | 6 |
| 2017 | 0 | 3 |
| 2018 | 2 | 6 |
| 2019 | 3 | 1 |
| 2020 | 6 | 6 |
| 2021 | 2 | 7 |
| 2022 | 6 | 2 |
| 2023 | 6 | 5 |
| 2024 | 4 | 7 |
| 2025 | 4 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Superconducting material and method of preparation thereof17 Mar 2026US 12,577,122 B2Imam Abdulrahman Bin Faisal University
- Oxygen sensor element and method for manufacturing same10 Mar 2026US 12,571,752 B2Koa Corporation
- High temperature superconducting materials30 Sep 2025US 12,433,174 B2California Institute of Technology
- Superconducting wire material, superconducting coil, superconducting magnet, superconducting motor, superconducting generator, superconducting aircraft, and superconducting device19 Aug 2025US 12,394,541 B2Kabushiki Kaisha Toshiba
- Methods of fabricating oxide/metal composites and components produced thereby22 Jul 2025US 12,365,631 B2Purdue Research Foundation
- Ybco/barium titanate superconducting material2 Jul 2026US 2026/0184591 A1Imam Abdulrahman Bin Faisal University
- High temperature superconducting materials2 Apr 2026US 2026/0096354 A1California Institute of Technology
- Method for recycling rare-earth barium copper oxide (rebco) seed crystals to grow superconducting bulk13 Nov 2025US 2025/0347030 A1Southwest Jiaotong University
- High Temperature Superconductors7 Aug 2025US 2025/0255198 A1Quantum Designed Materials Ltd.
- Oxide superconductor and method for manufacturing same13 Feb 2025US 2025/0057056 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Giant magnetoresistive cobalt oxide compounds218US 5,776,359 ASymyx Technologies, Inc. · 1998
- Preparation of superconducting oxides and oxide-metal composites119US 4,826,808 AMassachusetts Institute of Technology · 1989
- Metalorganic deposition process for preparing superconducting oxide films117US 4,880,770 AEastman Kodak Company · 1989
- Combinatorial synthesis of novel materials62US 6,326,090 B1Symyx Technologies, Inc. · 2001