Membrane surface activation to eliminate fouling and concentration polarization in water purification systems
US-10874994-B2 · Dec 29, 2020 · US
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)
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) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B13/14 |
| 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) |
| Display label | 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) |
| Total patents | 89 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 8 |
| 2019 | 13 |
| 2020 | 5 |
| 2021 | 14 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of preparing metal oxide-silica composite aerogel and metal oxide-silica composite aerogel prepared thereby
US-10792650-B2 · Oct 6, 2020 · US
Method for producing metal oxide nanocrystals, method for producing multi-element oxide nanocrystals, and metal oxide nanocrystals
US-10745822-B2 · Aug 18, 2020 · US
Ultraviolet and/or near-infrared blocking agent composition for transparent material
US-2020231437-A1 · Jul 23, 2020 · US
Method for producing nanocrystals and nanocrystal production device
US-10640882-B2 · May 5, 2020 · US
Silicon coated metal microparticles, silicon compound coated metal microparticles, and production method thereof
US-2019292374-A1 · Sep 26, 2019 · US
Layered double hydroxide film and composite material containing layered double hydroxide
US-10370250-B2 · Aug 6, 2019 · US
Silicon compound-coated metal particles
US-2019217384-A1 · Jul 18, 2019 · US
Method for producing oxide particles with controlled color characteristics
US-2019211209-A1 · Jul 11, 2019 · US
Method of producing silicon compound coated oxide particles, silicon compound coated oxide particles, and silicon compound coated oxide composition containing the same
US-2019144681-A1 · May 16, 2019 · US
Oxide particles with controlled color characteristics, and coating composition or film-like composition containing said oxide particles
US-2019135654-A1 · May 9, 2019 · US
Inorganic composite oxides and methods of making the same
US-10239045-B2 · Mar 26, 2019 · US
Microspheres Comprising Polydisperse Polymer Nanospheres and Porous Metal Oxide Microspheres
US-2019076810-A1 · Mar 14, 2019 · US
Porous Metal Oxide Microspheres
US-2019076809-A1 · Mar 14, 2019 · US
Methods for processing fumed metallic oxides
US-10227237-B2 · Mar 12, 2019 · US
Method for producing nanocrystals and nanocrystal production device
US-2019032241-A1 · Jan 31, 2019 · US
Precise modifying method for fine particle dispersion liquid
US-2019031508-A1 · Jan 31, 2019 · US
Precise modifying method for fine particle dispersion liquid
US-2019031509-A1 · Jan 31, 2019 · US
Method for producing metal oxide nanocrystals, method for producing multi-element oxide nanocrystals, and metal oxide nanocrystals
US-2018371638-A1 · Dec 27, 2018 · US
Preparation method for rod-shaped molybdenum oxide and preparation method for molybdenum oxide composite
US-10130937-B2 · Nov 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B13/14?
- CPC C01B13/14 is the Cooperative Patent Classification code for “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).”
- How many patents are filed under CPC C01B13/14 (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))?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC C01B13/14 growing?
- Publication counts under this code: 2 in 2024 vs 5 in 2025 (latest complete years).