Zeolite shaped bodies
US-2026042079-A1 · Feb 12, 2026 · US
Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 · 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 | C01B39/44 |
| Official title | Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 |
| Display label | Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 |
| Total patents | 43 |
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 | 3 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 10 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organo-template free fer synthesis
US-2025222442-A1 · Jul 10, 2025 · US
Hydrocarbon Adsorption Device
US-2023381738-A1 · Nov 30, 2023 · US
Zsm-35 molecular sieve and production method therefor, isomerization catalyst and production method therefor, and isomerization method
US-2023286817-A1 · Sep 14, 2023 · US
Functional structural body and method for making functional structural body
US-11655157-B2 · May 23, 2023 · US
Catalyst for gasoline synthesis from dimethyl ether, method for preparing the same, and method for preparing gasoline using the same
US-11648539-B2 · May 16, 2023 · US
Method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method
US-11634334-B2 · Apr 25, 2023 · US
Catalyst for gasoline synthesis from dimethyl ether, method for preparing the same, and method for preparing gasoline using the same
US-2022347662-A1 · Nov 3, 2022 · US
Catalyst for synthesizing dimethyl ether from synthetic gas, method for manufacturing the same, and method for synthesizing dimethyl ether using the same
US-2022348529-A1 · Nov 3, 2022 · US
Method for synthesizing a FER/MOR composite molecular sieve
US-11260377-B2 · Mar 1, 2022 · US
Process for the preparation of zeolites encapsulating transition metal nanoparticles from layered silicate precursors
US-2021370277-A1 · Dec 2, 2021 · US
Xenon adsorbent
US-11065597-B2 · Jul 20, 2021 · US
SCR catalysts having improved low temperature performance, and methods of making and using the same
US-11000836-B2 · May 11, 2021 · US
Method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method
US-2021094836-A1 · Apr 1, 2021 · US
Sound absorbing material and speaker box using same
US-10939195-B2 · Mar 2, 2021 · US
Modified crystalline aluminosilicate for dehydration of alcohols
US-10773250-B2 · Sep 15, 2020 · US
Functional structural body and method for making functional structural body
US-2020115248-A1 · Apr 16, 2020 · US
Modified Crystalline Aluminosilicate for Dehydration of Alcohols
US-2020078776-A1 · Mar 12, 2020 · US
Zsm-35 molecular sieve and preparation method thereof
US-2020038848-A1 · Feb 6, 2020 · US
Sound absorbing material and speaker box using same
US-2020037062-A1 · Jan 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B39/44?
- CPC C01B39/44 is the Cooperative Patent Classification code for “Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38.”
- How many patents are filed under CPC C01B39/44 (Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C01B39/44 growing?
- Publication counts under this code: 5 in 2023 vs 1 in 2025 (latest complete years).