WO2025224447 - CATALYTIC GASOLINE PARTICULATE FILTER
National phase entry is expected:
Publication Number
WO/2025/224447
Publication Date
30.10.2025
International Application No.
PCT/GB2025/050872
International Filing Date
23.04.2025
Title **
[English]
CATALYTIC GASOLINE PARTICULATE FILTER
[French]
FILTRE À PARTICULES D'ESSENCE CATALYTIQUE
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors
ARULRAJ, Kaneshalingam
BENET RAJKUMAR, Brenda
WARREN, Sarah
Priority Data
63/638,483
25.04.2024
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1969 | |
| EPO | Filing, Examination, Granting | 8107 | |
| Japan | Filing, Examination, Granting | 2092 | |
| South Korea | Filing, Examination, Granting | 1942 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
19,450
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Abstract[English]
A washcoat slurry comprising a platinum group metal (PGM), an oxygen storage capacity (OSC) material, an inorganic oxide support, a polyacrylate, and a solvent is disclosed. A method for the manufacture of a catalytic gasoline particulate filter for the treatment of an exhaust gas comprising coating a wall-flow filter substrate with the washcoat slurry is disclosed.[French]
L'invention concerne une suspension de revêtement catalytique comprenant un métal du groupe platine (MGP), un matériau à capacité de stockage d'oxygène (OSC), un support d'oxyde inorganique, un polyacrylate et un solvant. Un procédé de fabrication d'un filtre à particules d'essence catalytique pour le traitement d'un gaz d'échappement selon l’invention consiste à revêtir un substrat de filtre à écoulement sur paroi avec la suspension de revêtement catalytique.