PATENT CLAIM ANALYSIS

Application Number: 15933080
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["423", "213700"]

Abstract:
A poison-resistant catalytic converter includes a washcoat having a support material comprised of titania and/or silica and a plurality of platinum group metal particles disposed in the support material. The washcoat is disposed on a substrate having a plurality of cells that define respective apertures. The catalytic converter is resistant to poisoning from sulfur and phosphorous compounds while operating at low temperatures. Applications include spark ignited internal combustion engines in combined heat and power systems, vehicles, combustion turbines, boilers and other applications for utilities, industry and vehicle emissions control.

Claim (Index 22):
A method of operating a catalytic system for reducing emissions from a rich burn spark-ignited internal combustion engine, the method comprising:\n controlling a ratio of intake air and fuel (AFR) to the engine so the engine operates in a rich burn regime, the engine generating first exhaust gases substantially free of oxygen; passing said first exhaust gases into a first-stage catalyst chamber to remove at least a portion of at least one of a NOx, a CO, or a hydrocarbon content in the first exhaust gases; cooling said second exhaust gases to 300\u00b0 F.-650\u00b0 F.; increasing an oxygen content of said second exhaust gases to about 0.25-2.0%; and passing said cooled and oxygenated exhaust through a second-stage catalyst chamber containing a poison-resistant catalyst that reduces a CO content and a hydrocarbon content through oxidation reactions, wherein the poison-resistant catalyst includes the catalytic converter of  claim 1 .

Metadata:
- Claim Count in Document: 110.0
- Percentile: 90.0
- Lexical Diversity: 1.4058
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15079938', '14107704', '13156982', '15227530', '12687345']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7925766277440845
- 35 USC 102 Novelty (BERT): 0.5351926796693607
- Combined Prediction Score: 0.7668382329366121
- Mean Citation Score: 302.04363
- Max Citation Score: 381.1038
- Similarity Product: 250.7008085426688

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

Dataset: test