Catalytic converter
US-2015375206-A1 · Dec 31, 2015 · US
Operations & Transport
Operations & Transport · 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 | B01J35/04 |
| Official title | — |
| Display label | Operations & Transport (mapped technology topic) |
| Total patents | 2,376 |
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 | 160 |
| 2016 | 227 |
| 2017 | 267 |
| 2018 | 303 |
| 2019 | 304 |
| 2020 | 282 |
| 2021 | 274 |
| 2022 | 283 |
| 2023 | 218 |
| 2024 | 58 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical connection having a bushing or a conductor configured to absorb limited torque
US-9225107-B2 · Dec 29, 2015 · US
Particulate matter purifying material, filter catalyst for purifying particulate matter using particulate matter purifying material, and method of regenerating filter catalyst for purifying particulate matter
US-9222382-B2 · Dec 29, 2015 · US
Honeycomb filter and production method therefor, and aluminium titanate-based ceramic and production method therefor
US-2015367334-A1 · Dec 24, 2015 · US
Catalytic converter
US-2015352523-A1 · Dec 10, 2015 · US
Honeycomb structure
US-9188040-B2 · Nov 17, 2015 · US
Low cost lean NOx reduction catalyst system
US-9186654-B2 · Nov 17, 2015 · US
Ammonia slip catalyst having platinum impregnated on high porosity substrates
US-2015321184-A1 · Nov 12, 2015 · US
Catalyst Assembly For Treating Engine Exhaust
US-2015321181-A1 · Nov 12, 2015 · US
Catalyst precursor, method for producing the same, method for using the same, and reactor that uses the same
US-9175004-B2 · Nov 3, 2015 · US
Exhaust gas purification filter
US-2015298058-A1 · Oct 22, 2015 · US
Mixed metal oxidic nano sheets coated monolithic catalysts useful for the decomposition of toxic n2o and a process for the preparation thereof
US-2015290625-A1 · Oct 15, 2015 · US
Porous body, honeycomb filter, method for producing porous body, and method for producing honeycomb filter
US-2015273380-A1 · Oct 1, 2015 · US
Honeycomb structure
US-2015273436-A1 · Oct 1, 2015 · US
Catalyzed SCR filter and emission treatment system
US-9144795-B2 · Sep 29, 2015 · US
Extruded honeycomb catalyst
US-9138731-B2 · Sep 22, 2015 · US
Plugged honeycomb structure
US-2015260065-A1 · Sep 17, 2015 · US
Honeycomb structure
US-2015259254-A1 · Sep 17, 2015 · US
Method of Making a Nanotube Array Structure
US-2015258531-A1 · Sep 17, 2015 · US
Column contact apparatus and method for operating the same
US-9132392-B2 · Sep 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J35/04?
- CPC B01J35/04 is the Cooperative Patent Classification code for “Operations & Transport.”
- How many patents are filed under CPC B01J35/04 (Operations & Transport)?
- Our database includes 2,376 publications tagged with this CPC code.
- Is patent activity under CPC B01J35/04 growing?
- Publication counts under this code: 218 in 2023 vs 58 in 2024 (latest complete years).