C04B 2235/32
Metal oxides, mixed metal oxides, or oxide-forming salts thereof
Official title: Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
C04B2235/32 (Metal oxides, mixed metal oxides, or oxide-forming salts thereof) appears on 8,925 US grants and 11,408 published applications in this corpus.
Search patents in C04B- Granted patents
- 8,925
- Published applications
- 11,408
- Assignees
- 3,018
- Inventors
- 18,628
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 13 | 0 |
| 1978 | 18 | 0 |
| 1979 | 3 | 0 |
| 1980 | 15 | 0 |
| 1981 | 20 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 11 | 0 |
| 1985 | 18 | 0 |
| 1986 | 20 | 0 |
| 1987 | 15 | 0 |
| 1988 | 27 | 0 |
| 1989 | 27 | 0 |
| 1990 | 34 | 0 |
| 1991 | 49 | 0 |
| 1992 | 42 | 0 |
| 1993 | 53 | 0 |
| 1994 | 51 | 0 |
| 1995 | 41 | 0 |
| 1996 | 47 | 0 |
| 1997 | 59 | 0 |
| 1998 | 46 | 0 |
| 1999 | 63 | 0 |
| 2000 | 56 | 0 |
| 2001 | 74 | 29 |
| 2002 | 99 | 137 |
| 2003 | 158 | 334 |
| 2004 | 208 | 395 |
| 2005 | 180 | 396 |
| 2006 | 232 | 453 |
| 2007 | 236 | 419 |
| 2008 | 232 | 434 |
| 2009 | 276 | 576 |
| 2010 | 347 | 618 |
| 2011 | 379 | 537 |
| 2012 | 393 | 534 |
| 2013 | 427 | 523 |
| 2014 | 413 | 462 |
| 2015 | 415 | 470 |
| 2016 | 421 | 453 |
| 2017 | 412 | 488 |
| 2018 | 382 | 477 |
| 2019 | 382 | 532 |
| 2020 | 393 | 518 |
| 2021 | 353 | 509 |
| 2022 | 395 | 527 |
| 2023 | 399 | 508 |
| 2024 | 353 | 455 |
| 2025 | 368 | 353 |
| 2026 | 242 | 271 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereofIndexing code4,699
- C04B 2235/3205Alkaline earth oxides or oxide forming salts thereofIndexing code4,528
- C04B 2235/3224Rare earth oxide or oxide forming salts thereofIndexing code4,260
- C04B 2235/3217Aluminum oxide or oxide forming salts thereofIndexing code3,902
- C04B 2235/327Iron group oxides, their mixed metal oxides, or oxide-forming salts thereofIndexing code2,199
- C04B 2235/3201Alkali metal oxides or oxide-forming salts thereofIndexing code1,834
- C04B 2235/3262Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereofIndexing code1,615
- C04B 2235/3284Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide formingIndexing code1,261
All 16 subgroupsShow fewer
- C04B 2235/3281Copper oxides, cuprates or oxide-forming salts thereofIndexing code805
- C04B 2235/3286Gallium oxides, gallates, indium oxides, indates, thallium oxides, thallates or oxide formingIndexing code774
- C04B 2235/3298Bismuth oxides, bismuthates or oxide forming salts thereofIndexing code770
- C04B 2235/3293Tin oxides, stannates or oxide forming salts thereofIndexing code557
- C04B 2235/3294Antimony oxides, antimonates, antimonites or oxide forming salts thereof, indium antimonateIndexing code303
- C04B 2235/3287Germanium oxides, germanates or oxide forming salts thereofIndexing code269
- C04B 2235/3296Lead oxides, plumbates or oxide forming salts thereofIndexing code248
- C04B 2235/3289Noble metal oxidesIndexing code243
Recent patents
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- Method for preparing porous ceramic with uniform micro-nano pores8 Oct 2026US 2026/0308066 A1Central South University
- 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.
- 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.
- Sintering additives for improved microstructure control8 Oct 2026US 2026/0308070 A1UT-Battelle, LLC
Most cited
By later US patents
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength334US 6,601,662 B2Grant Prideco, L.P. · 2003
- 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