C04B 2235/3224
Rare earth oxide or oxide forming salts thereof
Official title: Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
C04B2235/3224 (Rare earth oxide or oxide forming salts thereof) appears on 4,260 US grants and 5,421 published applications in this corpus.
Search patents in C04B- Granted patents
- 4,260
- Published applications
- 5,421
- Assignees
- 1,466
- Inventors
- 8,861
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 15 | 0 |
| 1992 | 13 | 0 |
| 1993 | 22 | 0 |
| 1994 | 16 | 0 |
| 1995 | 17 | 0 |
| 1996 | 18 | 0 |
| 1997 | 25 | 0 |
| 1998 | 23 | 0 |
| 1999 | 25 | 0 |
| 2000 | 34 | 0 |
| 2001 | 32 | 16 |
| 2002 | 44 | 55 |
| 2003 | 65 | 155 |
| 2004 | 99 | 195 |
| 2005 | 98 | 175 |
| 2006 | 115 | 218 |
| 2007 | 123 | 216 |
| 2008 | 109 | 222 |
| 2009 | 168 | 261 |
| 2010 | 170 | 306 |
| 2011 | 203 | 248 |
| 2012 | 192 | 255 |
| 2013 | 214 | 236 |
| 2014 | 190 | 222 |
| 2015 | 193 | 216 |
| 2016 | 198 | 195 |
| 2017 | 194 | 233 |
| 2018 | 179 | 220 |
| 2019 | 192 | 248 |
| 2020 | 201 | 230 |
| 2021 | 162 | 240 |
| 2022 | 191 | 261 |
| 2023 | 190 | 243 |
| 2024 | 175 | 251 |
| 2025 | 181 | 175 |
| 2026 | 116 | 129 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of producing manufactured object and manufactured object6 Oct 2026US 12,752,457 B2Canon Kabushiki Kaisha
- Lanthanum/molybdenum composite oxide, antibacterial sintered compact, and antiviral sintered compact6 Oct 2026US 12,753,084 B2Niterra Co., Ltd.
- Paramagnetic garnet-based transparent ceramic and method for producing same6 Oct 2026US 12,755,877 B2Shin-Etsu Chemical Co., Ltd.
- Dielectric material and device and memory device comprising the same6 Oct 2026US 12,757,417 B2Samsung Electronics Co., Ltd.
- Zirconia mill blank for dental cutting and machining and preparing method thereof22 Sep 2026US 12,740,847 B2Shofu Inc.
- Dielectric composition with high-temperature stability8 Oct 2026US 2026/0308067 A1Amotech Co., Ltd.
- Dielectric composition with high-temperature stability8 Oct 2026US 2026/0308068 A1Amotech Co., Ltd.
- Process for improving flash sintering of ceramics and improved ceramics8 Oct 2026US 2026/0308072 A1The Regents of the University of Colorado, a body corporate
- Ceramic and metal materials with controlled microstructures, and systems and methods for fabrication and use thereof17 Sep 2026US 2026/0274753 A1University of Maryland, College Park
- Antiferroelectric containing dysprosium and a manufacturing method thereof17 Sep 2026US 2026/0274755 A1Hyundai Motor Company
Most cited
By later US patents
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Nanocrystalline apatites and composites, prostheses incorporating them, and method for their production242US 6,013,591 AMassachusetts Institute of Technology · 2000
- Atomic layer controlled deposition on particle surfaces225US 6,613,383 B1The Regents of the University of Colorado · 2003
- Long persistent phosphors and persistent energy transfer technique225US 6,953,536 B2University of Georgia Research Foundation, Inc. · 2005
- Giant magnetoresistive cobalt oxide compounds218US 5,776,359 ASymyx Technologies, Inc. · 1998