SCR-Active Material
US-2020406191-A1 · Dec 31, 2020 · US
Iron group metals or copper
Iron group metals or copper · 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 | B01J29/56 |
| Official title | Iron group metals or copper |
| Display label | Iron group metals or copper |
| Total patents | 88 |
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 | 15 |
| 2016 | 12 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 8 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Synthesis of metal promoted zeolite catalyst
US-10807080-B2 · Oct 20, 2020 · US
SCR-active material
US-10799831-B2 · Oct 13, 2020 · US
Use of a palladium/platinum/zeolite-based catalyst as passive nitrogen oxide adsorber for purifying exhaust gas
US-2020246784-A1 · Aug 6, 2020 · US
Zeolite with reduced extra-framework aluminum
US-2020206723-A1 · Jul 2, 2020 · US
Catalytic washcoat with controlled porosity for nox abatement
US-2020188895-A1 · Jun 18, 2020 · US
Scr method for reducing oxides of nitrogen and method for producing a catalyst for such method
US-2020018210-A1 · Jan 16, 2020 · US
One-pot synthesis of copper containing small-pore zeolites
US-10486145-B2 · Nov 26, 2019 · US
Crystalline Zeolites with ERI/CHA Intergrowth Framework Type
US-2019351399-A1 · Nov 21, 2019 · US
Method of forming a catalyst with an ion-modified binder
US-10369552-B2 · Aug 6, 2019 · US
SCR-Active Material
US-2019184338-A1 · Jun 20, 2019 · US
Selective catalytic reduction articles and systems
US-2019170042-A1 · Jun 6, 2019 · US
Active scr catalyst
US-2019134615-A1 · May 9, 2019 · US
Ion-exchanged molecular sieve catalysts exhibiting reduced n2o emissions
US-2019134617-A1 · May 9, 2019 · US
Processes using molecular sieve SSZ-105
US-10272423-B2 · Apr 30, 2019 · US
Catalyst for oxidising ammonia
US-2019091677-A1 · Mar 28, 2019 · US
Bi-metal molecular sieve catalysts
US-2019001313-A1 · Jan 3, 2019 · US
Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine
US-2018361364-A1 · Dec 20, 2018 · US
Catalyst for treating exhaust gas
US-10118127-B2 · Nov 6, 2018 · US
Method of Forming a Catalyst with an Ion-Modified Binder
US-2018297017-A1 · Oct 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J29/56?
- CPC B01J29/56 is the Cooperative Patent Classification code for “Iron group metals or copper.”
- How many patents are filed under CPC B01J29/56 (Iron group metals or copper)?
- Our database includes 88 publications tagged with this CPC code.
- Is patent activity under CPC B01J29/56 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).