C01B 13/14
Methods for preparing oxides or hydroxides in general
Official title: Methods for preparing oxides or hydroxides in general (particular individual oxides or hydroxides, see the relevant groups of subclasses C01B - C01G or C25B, according to the element combined with the oxygen or hydroxy group)
C01B13/14 (Methods for preparing oxides or hydroxides in general) appears on 1,208 US grants and 929 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,208
- Published applications
- 929
- Assignees
- 686
- Inventors
- 2,684
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 13 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 14 | 0 |
| 1989 | 29 | 0 |
| 1990 | 20 | 0 |
| 1991 | 31 | 0 |
| 1992 | 33 | 0 |
| 1993 | 31 | 0 |
| 1994 | 24 | 0 |
| 1995 | 32 | 0 |
| 1996 | 26 | 0 |
| 1997 | 33 | 0 |
| 1998 | 40 | 0 |
| 1999 | 33 | 0 |
| 2000 | 30 | 0 |
| 2001 | 33 | 8 |
| 2002 | 29 | 64 |
| 2003 | 47 | 70 |
| 2004 | 50 | 65 |
| 2005 | 39 | 65 |
| 2006 | 50 | 54 |
| 2007 | 32 | 59 |
| 2008 | 22 | 57 |
| 2009 | 46 | 49 |
| 2010 | 36 | 48 |
| 2011 | 38 | 41 |
| 2012 | 26 | 41 |
| 2013 | 30 | 32 |
| 2014 | 18 | 31 |
| 2015 | 34 | 18 |
| 2016 | 34 | 28 |
| 2017 | 23 | 24 |
| 2018 | 24 | 28 |
| 2019 | 24 | 35 |
| 2020 | 19 | 27 |
| 2021 | 23 | 19 |
| 2022 | 23 | 20 |
| 2023 | 11 | 15 |
| 2024 | 9 | 12 |
| 2025 | 14 | 13 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C01B 13/32By oxidation or hydrolysis of elements or compounds in the liquid or278
- C01B 13/18By thermal decomposition of compounds276
- C01B 13/36By precipitation reactions in aqueous solutions232
- C01B 13/145After-treatment of oxides or hydroxides193
- C01B 13/20By oxidation of elements in the gaseous state133
- C01B 13/34By oxidation or hydrolysis of sprayed or atomised solutions114
- C01B 13/16Purification16
Recent patents
- Sol application methods12 May 2026US 12,623,197 B2Green Sol-Gel Ltd.
- Spray pyrolysis system and method for manufacture of mixed metal oxide compositions13 Jan 2026US 12,522,500 B2Pyrochem Catalyst Company
- CaB2O4/PbO/CuO/Pb3O4/PbB2O4/Pb4O(BO3)2 nanocomposite material and method of making2 Dec 2025US 12,486,169 B1Imam Mohammad Ibn Saud Islamic University
- All-scale self-assembly and precise positioning of supraparticles14 Oct 2025US 12,441,978 B2The Regents of the University of California
- Spray evaporation of a liquid raw material for preparation of silicon dioxide and metal oxides9 Sep 2025US 12,410,061 B2Evonik Operations GmbH
- Process for manufacturing oxides13 Aug 2026US 2026/0234007 A1Evonik Operations GmbH
- Process for manufacturing oxides13 Aug 2026US 2026/0234016 A1Evonik Operations GmbH
- Preparation method for doped metal oxide, and light-emitting device comprising doped metal oxide30 Jul 2026US 2026/0223532 A1Tcl Technology Group Corporation
- Fluidized bed calcination with gas mixture comprising hydrogen26 Mar 2026US 2026/0084129 A1Metso Metals Oy
- Modified metal oxide particle material and method for producing same12 Mar 2026US 2026/0070786 A1Admatechs Co., Ltd.
Most cited
By later US patents
- High power ultrasonic reactor for sonochemical applications392US 7,157,058 B2Nano-Size Ltd. · 2007
- Nanostructured fillers and carriers316US 6,228,904 B1Nanomaterials Research Corporation · 2001
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Method of producing nanoscale powders by quenching of vapors219US 5,788,738 ANanomaterials Research Corporation · 1998