Silica composite, method for producing the same, and method for producing propylene using the silica composite
US-9527064-B2 · Dec 27, 2016 · US
Ion-exchange
Ion-exchange · 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 | B01J37/30 |
| Official title | Ion-exchange |
| Display label | Ion-exchange |
| Total patents | 682 |
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 | 35 |
| 2016 | 42 |
| 2017 | 52 |
| 2018 | 79 |
| 2019 | 92 |
| 2020 | 91 |
| 2021 | 86 |
| 2022 | 72 |
| 2023 | 44 |
| 2024 | 51 |
| 2025 | 30 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ion-exchanged zsm-5 zeolite catalyst for conversion of alkyl halide to olefins
US-2016347681-A1 · Dec 1, 2016 · US
Cerium-modified manganese octahedral molecular sieves as catalysts for selective catalytic reduction
US-2016346770-A1 · Dec 1, 2016 · US
BIMETAL-EXCHANGED ZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx
US-2016325228-A1 · Nov 10, 2016 · US
Method for synthesis of ruthenium nanoparticles with face-centered cubic and hexagonal close-packed structures
US-2016311028-A1 · Oct 27, 2016 · US
Zeolitic materials and methods for their preparation using alkenyltrialkylammonium compounds
US-9475041-B2 · Oct 25, 2016 · US
Tin-containing zeolitic material having a bea framework structure
US-2016279621-A1 · Sep 29, 2016 · US
Hydrocarbon aromatization catalyst composition and method of formation
US-9446389-B2 · Sep 20, 2016 · US
Catalyst System and Use in Heavy Aromatics Conversion Processes
US-2016221896-A1 · Aug 4, 2016 · US
Basic exchange for enhanced redox OS materials for emission control applications
US-9403151-B2 · Aug 2, 2016 · US
Aromatization catalysts with high surface area and pore volume
US-9387467-B2 · Jul 12, 2016 · US
Uses of certain platinoid accumulating plants for use in organic chemical reactions
US-2016159934-A1 · Jun 9, 2016 · US
Copper Containing Levyne Molecular Sieve For Selective Reduction Of NOx
US-2016129431-A1 · May 12, 2016 · US
Modified zeolite catalyst and methods for producing and using same
US-2016107153-A1 · Apr 21, 2016 · US
Methods of making porous crystalline materials and their use in hydrocarbon sorption
US-2016102590-A1 · Apr 14, 2016 · US
Removal of occluded alkali metal cations from mse-framework type molecular sieves
US-2016101985-A1 · Apr 14, 2016 · US
Process and apparatus for producing olefin
US-9309470-B2 · Apr 12, 2016 · US
Visible light sensitive photocatalyst, method of producing visible light sensitive photocatalyst, and electrochemical water decomposition cell and organic material decomposition system each including visible light sensitive photocatalyst
US-9308526-B2 · Apr 12, 2016 · US
Synthesis of nanosized metal carbides on graphitized carbon as supporting materials for electrocatalysts
US-9295979-B2 · Mar 29, 2016 · US
Copper containing ZSM-34, OFF and/or ERI zeolitic material for selective reduction of NOx
US-9289756-B2 · Mar 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J37/30?
- CPC B01J37/30 is the Cooperative Patent Classification code for “Ion-exchange.”
- How many patents are filed under CPC B01J37/30 (Ion-exchange)?
- Our database includes 682 publications tagged with this CPC code.
- Is patent activity under CPC B01J37/30 growing?
- Publication counts under this code: 51 in 2024 vs 30 in 2025 (latest complete years).