PATENT CLAIM ANALYSIS

Application Number: 16405087
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-11
Patent Classification: ["422", "168000"]

Abstract:
A purification control device ( 12 ) controls a urea water injector ( 5 ) for supplying urea as a reducing agent to an SCR catalyst ( 4 ). The purification control device ( 12 ) sets a pre-deterioration maximum occlusion amount based on the SCR catalyst temperature, and estimates the concentration of ammonia discharged from the SCR catalyst ( 4 ), as an estimated ammonia concentration, based on upstream NOx concentration information, downstream NOx concentration information, urea injection amount information, the pre-deterioration maximum occlusion amount, and ammonia occlusion amount information. The purification control device ( 12 ) acquires downstream ammonia concentration information. When the downstream ammonia concentration is greater than the estimated ammonia concentration, the purification control device ( 12 ) decreases the supply amount of urea from the urea water injector ( 5 ).

Claim (Index 2):
The purification control device as claimed in  claim 1 , further comprising a coefficient calculation unit configured to calculate, as a correction coefficient, a division value obtained by dividing the estimated ammonia concentration by the downstream ammonia concentration, wherein\n the decreasing unit decreases the supply amount based on the correction coefficient calculated by the coefficient calculation unit.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 2.69091
- Patent Class: 422.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15170045', '15170177', '15787984', '12936706', '12917179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8014726615224989
- 35 USC 102 Novelty (BERT): 0.5412078587287036
- Combined Prediction Score: 0.7754461812431194
- Mean Citation Score: 356.48528600000014
- Max Citation Score: 417.83597
- Similarity Product: 316.55161333325736

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

Dataset: test