Catalyst system for treating NOx- and particle-containing diesel exhaust gas
US-9527036-B2 · Dec 27, 2016 · US
NOx-storage component incorporated in the catalyst
NOx-storage component incorporated in the catalyst · 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 | B01D2255/91 |
| Official title | NOx-storage component incorporated in the catalyst |
| Display label | NOx-storage component incorporated in the catalyst |
| Total patents | 466 |
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 | 43 |
| 2016 | 39 |
| 2017 | 66 |
| 2018 | 73 |
| 2019 | 67 |
| 2020 | 50 |
| 2021 | 34 |
| 2022 | 42 |
| 2023 | 17 |
| 2024 | 22 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust emission purifier of internal combustion engine
US-9523300-B2 · Dec 20, 2016 · US
Exhaust gas purifying catalyst
US-9522385-B2 · Dec 20, 2016 · US
ZPGM Diesel Oxidation Catalysts and methods of making and using same
US-9511350-B2 · Dec 6, 2016 · US
Emissions reduction system
US-2016341091-A1 · Nov 24, 2016 · US
Zeolite and redox oxide combined catalyst body
US-9492811-B2 · Nov 15, 2016 · US
Exhaust gas purification catalyst and method for producing the same
US-2016296912-A1 · Oct 13, 2016 · US
Exhaust system for a compression ignition engine having a capture face for volatilised platinum
US-2016273427-A1 · Sep 22, 2016 · US
Nanoparticle carrying method
US-9381496-B2 · Jul 5, 2016 · US
Air-injection system to improve effectiveness of selective catalytic reduction catalyst
US-9376949-B2 · Jun 28, 2016 · US
Emissions treatment system with ammonia-generating and SCR catalysts
US-9358503-B2 · Jun 7, 2016 · US
Device for discharging exhaust gas from diesel engine, having ammonolysis module
US-9321008-B2 · Apr 26, 2016 · US
Emissions treatment system with ammonia-generating and SCR catalysts
US-9321009-B2 · Apr 26, 2016 · US
Desulfurization of nox storage catalysts
US-2016082427-A1 · Mar 24, 2016 · US
Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine
US-9261004-B2 · Feb 16, 2016 · US
Exhaust cleaner for internal combustion engine
US-9255509-B2 · Feb 9, 2016 · US
Hexagonal oxidation catalyst
US-2016001226-A1 · Jan 7, 2016 · US
Catalyst blends
US-2015375215-A1 · Dec 31, 2015 · US
Diesel engine exhaust gas purification method and exhaust gas purification system
US-9222394-B2 · Dec 29, 2015 · US
Oxidation Catalyst for a Compression Ignition Engine
US-2015360213-A1 · Dec 17, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2255/91?
- CPC B01D2255/91 is the Cooperative Patent Classification code for “NOx-storage component incorporated in the catalyst.”
- How many patents are filed under CPC B01D2255/91 (NOx-storage component incorporated in the catalyst)?
- Our database includes 466 publications tagged with this CPC code.
- Is patent activity under CPC B01D2255/91 growing?
- Publication counts under this code: 22 in 2024 vs 10 in 2025 (latest complete years).