Patent · US Active

Exhaust gas purification catalyst

US10159935B2 · kind B2 · utility

13Cited by
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13Claims
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Key dates

Filing dateOct 7, 2015
Grant dateDec 25, 2018
Priority date
Expiry dateOct 7, 2035

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/12
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An exhaust gas purification catalyst having an excellent exhaust gas purification ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes entrance cell, exit cell, and a wall-flow substrate having partition wall to separate these cell, a catalytic layer formed from exhaust inlet-side ends in the extending direction in sections of the interior of partition wall facing entrance cell, and a catalytic layer formed on the surface of partition wall facing exit cell from exhaust outlet-side ends in the extending direction of partition wall, having a length shorter than the entire partition wall length.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.