Patents
US 12744223 B2: Surface modified oxygen reduction electrochemical catalysts
- Granted
- 2026-09-22
- Filed
- 2023-06-05 application 18205695
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A catalyst includes a metal on carbon (Me/C) particle with a surface modified with a plurality of immobilized planar six-membered benzene-like rings having at least three functional groups (R1-R3), and up to seven functional groups (R4-R7). The plurality of immobilized planar six-membered benzene-like rings can be a plurality of immobilized triazine rings. The R1 functional group is bonded to or provides a bond with the Me/C particle and is selected from O, COO, NH, NR4, S, an alkylamino group having 1 to 10 carbon atoms, an alkyl group having 1 to 10 carbon atoms, and a perfluoro alkyl group having 1 to 10 carbon atoms.
Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Toyota Motor Engineering & Manufacturing North America, Inc. 4,290 patents | US company or organization | Plano, TX | Toyota Motor Engineering & Manufacturing North America, Inc. State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-09-22 |
| Toyota Jidosha Kabushiki Kaisha 30,553 patents | Foreign company or organization | Toyota, JP | PTBLXML, file of 2026-09-22 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Keiichi Okubo | Ann Arbor, MI | 3 | PTBLXML, file of 2026-09-22 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01M | Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | H01M4/9008 | PTBLXML, file of 2026-09-22 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.