Method for manufacturing gasoline particulate filter
US-12544739-B2 · Feb 10, 2026 · US
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Walton Mark patents
Walton Mark is listed as an inventor on 9 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Walton Mark |
| Total patents | 9 |
| First publication | Jan 21, 2021 |
| Latest publication | Feb 10, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Catalytic wall-flow filter
US-12312990-B1 · May 27, 2025 · US
Improved catalytic wall-flow filter
US-2025154890-A1 · May 15, 2025 · US
Ammonia slip catalyst filter
US-2024226864-A1 · Jul 11, 2024 · US
Scrf coatings
US-2024116037-A1 · Apr 11, 2024 · US
Method for manufacturing gasoline particulate filter
US-2023381746-A1 · Nov 30, 2023 · US
Exhaust system including SCRF catalyst with oxidation zone
US-11280240-B2 · Mar 22, 2022 · US
Particulate filters
US-2021260573-A1 · Aug 26, 2021 · US
Exhaust system including scrf catalyst with oxidation zone
US-2021017889-A1 · Jan 21, 2021 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Johnson Matthey Plc | 9 |
| Bergeal David | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F01N3/035 | 9 |
| B01D2255/9155 | 7 |
| B01D2255/2092 | 6 |
| F01N2330/06 | 6 |
| Y02T10/12 | 6 |