Alcohol dehydration catalyst, preparation method the same and method for preparing alpha-olefins using the same
US-11192090-B2 · Dec 7, 2021 · US
Hydroxy carbonates
Hydroxy carbonates · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J27/236 |
| Official title | Hydroxy carbonates |
| Display label | Hydroxy carbonates |
| Total patents | 78 |
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 | 4 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 14 |
| 2020 | 8 |
| 2021 | 12 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Layered double hydroxide, catalyst for water electrolysis cell, water electrolysis cell, water electrolyzer, and method for manufacturing layered double hydroxide
US-2021346879-A1 · Nov 11, 2021 · US
Trimetallic layered double hydroxide composition
US-2021348284-A1 · Nov 11, 2021 · US
Method for efficiently catalyzing furfural to prepare cyclopentanone, and catalyst and preparation method therefor
US-11141724-B2 · Oct 12, 2021 · US
Supported metal catalyst
US-11052377-B2 · Jul 6, 2021 · US
Highly efficient nanosized mesoporous CuMgAl ternary oxide catalyst
US-11045792-B1 · Jun 29, 2021 · US
Methods for preparing mixed-metal oxide diamondoid nanocomposites and catalytic systems including the nanocomposites
US-2021086261-A1 · Mar 25, 2021 · US
Supported bimetallic core-shell structure catalyst and its preparation method
US-10913052-B1 · Feb 9, 2021 · US
Supported bimetallic core-shell structure catalyst and its preparation method
US-2021023536-A1 · Jan 28, 2021 · US
Methods for preparing mixed-metal oxide diamondoid nanocomposites and catalytic systems including the nanocomposites
US-10875092-B2 · Dec 29, 2020 · US
Sio2-layered double hydroxide microspheres and methods of making them
US-2020338533-A1 · Oct 29, 2020 · US
Lanthanide-doped layered double hydroxides and method of producing same
US-2020325031-A1 · Oct 15, 2020 · US
Alcohol dehydration catalyst, preparation method the same and method for preparing alpha-olefins using the same
US-2020306732-A1 · Oct 1, 2020 · US
Supported metal catalyst
US-2020290018-A1 · Sep 17, 2020 · US
SiO2-layered double hydroxide microspheres and methods of making them
US-10773246-B2 · Sep 15, 2020 · US
Heterogenized catalyst for acetylene dimerization
US-10668455-B2 · Jun 2, 2020 · US
Method for forming lanthanum hydroxycarbonate nanoparticles
US-10646856-B2 · May 12, 2020 · US
Method for making LaCO3OH nanoparticles from aqueous salt solutions
US-10512900-B2 · Dec 24, 2019 · US
Formed body and method for producing the same, α-olefin dimerization catalyst, and method for producing α-olefin dimer
US-10500570-B2 · Dec 10, 2019 · US
Catalyst component for reducing the total acid number in refinery feedstocks
US-2019292468-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J27/236?
- CPC B01J27/236 is the Cooperative Patent Classification code for “Hydroxy carbonates.”
- How many patents are filed under CPC B01J27/236 (Hydroxy carbonates)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC B01J27/236 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).