C04B 2235/3231
Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
C04B2235/3231 (Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof) appears on 4,699 US grants and 6,037 published applications in this corpus.
Search patents in C04B- Granted patents
- 4,699
- Published applications
- 6,037
- Assignees
- 1,767
- Inventors
- 10,342
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 26 | 0 |
| 1992 | 28 | 0 |
| 1993 | 24 | 0 |
| 1994 | 25 | 0 |
| 1995 | 24 | 0 |
| 1996 | 21 | 0 |
| 1997 | 27 | 0 |
| 1998 | 16 | 0 |
| 1999 | 27 | 0 |
| 2000 | 33 | 0 |
| 2001 | 38 | 16 |
| 2002 | 57 | 80 |
| 2003 | 93 | 192 |
| 2004 | 124 | 208 |
| 2005 | 92 | 187 |
| 2006 | 114 | 239 |
| 2007 | 127 | 219 |
| 2008 | 135 | 229 |
| 2009 | 149 | 270 |
| 2010 | 177 | 305 |
| 2011 | 183 | 279 |
| 2012 | 189 | 247 |
| 2013 | 201 | 253 |
| 2014 | 210 | 240 |
| 2015 | 219 | 242 |
| 2016 | 211 | 251 |
| 2017 | 235 | 284 |
| 2018 | 196 | 237 |
| 2019 | 221 | 289 |
| 2020 | 206 | 271 |
| 2021 | 186 | 277 |
| 2022 | 195 | 322 |
| 2023 | 220 | 266 |
| 2024 | 206 | 275 |
| 2025 | 222 | 205 |
| 2026 | 138 | 154 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2235/3244Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereofIndexing code2,502
- C04B 2235/3232Titanium oxides or titanatesIndexing code2,216
- C04B 2235/3251Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereofIndexing code1,248
- C04B 2235/3241Chromium oxides, chromates, or oxide-forming salts thereofIndexing code852
- C04B 2235/3239Vanadium oxides, vanadates or oxide forming salts thereofIndexing code725
- C04B 2235/3258Tungsten oxides, tungstates, or oxide-forming salts thereofIndexing code571
- C04B 2235/3256Molybdenum oxides, molybdates or oxide forming salts thereofIndexing code483
Recent patents
- Lanthanum/molybdenum composite oxide, antibacterial sintered compact, and antiviral sintered compact6 Oct 2026US 12,753,084 B2Niterra Co., Ltd.
- Lead-free piezoelectric ceramic composition and piezoelectric element6 Oct 2026US 12,753,122 B2Niterra Co., Ltd.
- Ceramic, probe guiding member, probe card and socket for package inspection6 Oct 2026US 12,753,124 B2Ferrotec Material Technologies Corporation
- Annealing separator composition for grain- oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet6 Oct 2026US 12,753,457 B2Posco
- Dielectric material and device and memory device comprising the same6 Oct 2026US 12,757,417 B2Samsung Electronics Co., Ltd.
- Dielectric composition with high-temperature stability8 Oct 2026US 2026/0308067 A1Amotech Co., Ltd.
- Silver-containing zirconia sintered body, silver-containing stabilized zirconia powder, method for producing silver-containing stabilized zirconia powder, and method for producing silver-containing zirconia sintered body8 Oct 2026US 2026/0308069 A1Daiichi Kigenso Kagaku Kogyo 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
- Dielectric ceramic, method of preparing the same, and multilayer ceramic capacitor including the same8 Oct 2026US 2026/0311933 A1Samsung Electro-Mechanics Co., Ltd.
- Dielectric composition, dielectric element, electronic device, and multilayer electronic device1 Oct 2026US 2026/0296978 A1TDK Corporation
Most cited
By later US patents
- Nanocrystalline apatites and composites, prostheses incorporating them, and method for their production242US 6,013,591 AMassachusetts Institute of Technology · 2000
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Atomic layer controlled deposition on particle surfaces225US 6,613,383 B1The Regents of the University of Colorado · 2003
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Tunable dielectric compositions including low loss glass184US 6,905,989 B2Paratek Microwave, Inc. · 2005