Visible light-activated photocatalytic coating composition and air purification filter
US-10449519-B2 · Oct 22, 2019 · US
with catalysts
with catalysts · 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 | B01D46/82 |
| Official title | with catalysts |
| Display label | with catalysts |
| Total patents | 116 |
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 | 7 |
| 2016 | 1 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 23 |
| 2020 | 13 |
| 2021 | 14 |
| 2022 | 8 |
| 2023 | 11 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust gas purification filter
US-2019299139-A1 · Oct 3, 2019 · US
Sieve seal and method for operation thereof
US-2019264640-A1 · Aug 29, 2019 · US
Bathroom management apparatus
US-10393403-B2 · Aug 27, 2019 · US
Emissions Control Substrate
US-2019240651-A1 · Aug 8, 2019 · US
Device and method comprising double reducing devices and a catalytically coated particle filter for treatment of an exhaust stream
US-10364724-B2 · Jul 30, 2019 · US
Exhaust gas purification system for an internal combustion engine
US-10337376-B2 · Jul 2, 2019 · US
Exhaust gas control system for internal combustion engine
US-10302000-B2 · May 28, 2019 · US
Method for cleaning process off- or engine exhaust gas
US-10286360-B2 · May 14, 2019 · US
Method and system for controlling nitrogen oxide emissions from a combustion engine
US-10273850-B2 · Apr 30, 2019 · US
Exhaust treatment system and method for treatment of an exhaust stream
US-10273852-B2 · Apr 30, 2019 · US
System and method for purification of an exhaust stream by use of two reduction catalysts
US-10267197-B2 · Apr 23, 2019 · US
Device and method for impacting the amount of nitrogen oxides in exhaust gases from an internal combustion engine
US-10267198-B2 · Apr 23, 2019 · US
Exhaust treatment system and method for treatment of an exhaust stream
US-10260391-B2 · Apr 16, 2019 · US
Method and system for controlling nitrogen oxide emissions from a combustion engine
US-10260392-B2 · Apr 16, 2019 · US
Aftertreatment system
US-2019085746-A1 · Mar 21, 2019 · US
Exhaust treatment system and method for treatment of an exhaust stream
US-2019040778-A1 · Feb 7, 2019 · US
Method and system for the removal of particulate matter from engine exhaust gas or process equipment
US-10196949-B2 · Feb 5, 2019 · US
Exhaust Gas After-Treatment Unit for an Internal Combustion Engine
US-2019003360-A1 · Jan 3, 2019 · US
Exhaust gas treating device, temperature raising method of catalyst, regeneration method of honeycomb structure, and ash removing method
US-10166500-B2 · Jan 1, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/82?
- CPC B01D46/82 is the Cooperative Patent Classification code for “with catalysts.”
- How many patents are filed under CPC B01D46/82 (with catalysts)?
- Our database includes 116 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/82 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).