Method for the preparation of synthetic crystalline zeolite materials with enhanced pore volume
US-2018194635-A1 · Jul 12, 2018 · US
Type ZSM-5
Type ZSM-5 · 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 | C01B39/38 |
| Official title | Type ZSM-5 |
| Display label | Type ZSM-5 |
| Total patents | 210 |
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 | 16 |
| 2016 | 17 |
| 2017 | 23 |
| 2018 | 19 |
| 2019 | 35 |
| 2020 | 22 |
| 2021 | 24 |
| 2022 | 10 |
| 2023 | 15 |
| 2024 | 19 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas adsorbent and vacuum thermal insulation material including gas adsorbent
US-9968907-B2 · May 15, 2018 · US
Method for separating straight-chain conjugated diene
US-9944576-B2 · Apr 17, 2018 · US
Oligomerization of ethylene to liquid transportation fuels with post synthesis treated zsm-5 catalyst
US-2018022664-A1 · Jan 25, 2018 · US
Method for separating straight-chain conjugated diene
US-2017349510-A1 · Dec 7, 2017 · US
Loudspeaker system with improved sound
US-9820023-B2 · Nov 14, 2017 · US
Synthesis of high silica zeolite via interzeolite transformation without OSDAs
US-9802831-B2 · Oct 31, 2017 · US
Ion-exchange process
US-2017296971-A1 · Oct 19, 2017 · US
Loudspeaker system with improved sound
US-9794659-B2 · Oct 17, 2017 · US
Gas adsorbent and vacuum thermal insulation material including gas adsorbent
US-2017274349-A1 · Sep 28, 2017 · US
Zeolite production method
US-2017267536-A1 · Sep 21, 2017 · US
Zeolite production method
US-2017267535-A1 · Sep 21, 2017 · US
Substrate having at least one partially or entirely flat surface and use thereof
US-2017260058-A1 · Sep 14, 2017 · US
Porous support-zeolite membrane composite, and method for producing porous support-zeolite membrane composite
US-2017259214-A1 · Sep 14, 2017 · US
Synthesis of ZSM-5
US-9757716-B2 · Sep 12, 2017 · US
Separation membrane structure
US-2017225129-A1 · Aug 10, 2017 · US
Zeolite production method
US-2017217779-A1 · Aug 3, 2017 · US
Oxide materials and synthesis by fluoride/chloride anion promoted exfoliation
US-9718048-B2 · Aug 1, 2017 · US
Oxide materials and synthesis by fluoride/chloride anion promoted exfoliation
US-9718049-B2 · Aug 1, 2017 · US
Loudspeaker system with improved sound
US-9699536-B2 · Jul 4, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B39/38?
- CPC C01B39/38 is the Cooperative Patent Classification code for “Type ZSM-5.”
- How many patents are filed under CPC C01B39/38 (Type ZSM-5)?
- Our database includes 210 publications tagged with this CPC code.
- Is patent activity under CPC C01B39/38 growing?
- Publication counts under this code: 19 in 2024 vs 9 in 2025 (latest complete years).