PATENT CLAIM ANALYSIS

Application Number: 16014979
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["422", "177000"]

Abstract:
An exhaust gas purification material according to the present invention is provided with a particulate filter  10  that traps particulate matter in exhaust gas and contains an SCR catalyst for adsorbing ammonia and reducing NOx in the exhaust gas. A maximum allowable adsorption amount of ammonia adsorbable by the filter  10  differs between an upstream portion  10 a  of the filter  10  including an exhaust gas inlet-side end  10 c , and a downstream portion  10 b  of the filter  10  including an exhaust gas outlet-side end  10 d . The SCR catalyst contained in the upstream portion  10 a  and the SCR catalyst contained in the downstream portion  10 b  are qualitatively different. A ratio (B/A) of a maximum allowable adsorption amount of ammonia A in the upstream portion  10 a  and a maximum allowable adsorption amount of ammonia B in the downstream portion  10 b  satisfies the relationship 1.1≤(B/A)≤2.

Claim (Index 4):
The exhaust gas purification material according to  claim 1 , wherein the filter includes:\n a substrate of wall flow structure, having inlet cells in which only an exhaust gas inflow end is open, outlet cells adjacent to the inlet cells and in which only an exhaust gas outflow end is open, and a porous partition wall that separates the inlet cells and the outlet cells; an upstream catalyst layer provided within the partition wall in the upstream portion and containing an SCR catalyst; and a downstream catalyst layer provided within the partition wall in the downstream portion and containing an SCR catalyst, wherein the upstream catalyst layer is formed in such a manner that 80 mass % or more of the total amount of the SCR catalyst is present in a portion corresponding to up to 80% of the thickness of the partition wall, from a surface of the partition wall in contact with the inlet cells towards the outlet cells, and the downstream catalyst layer is formed in such a manner that 80 mass % or more of the total amount of the SCR catalyst is present in a portion corresponding to up to 80% of the thickness of the partition wall, from the surface of the partition wall in contact the outlet cells towards the inlet cells.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 94.0
- Lexical Diversity: 2.38806
- Patent Class: 422.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15037356', '15101980', '14421797', '11725442', '15590535']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8318427086988306
- 35 USC 102 Novelty (BERT): 0.5788455725345066
- Combined Prediction Score: 0.8065429950823982
- Mean Citation Score: 347.69805400000007
- Max Citation Score: 484.34125
- Similarity Product: 476.2076146698743

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test