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 3):
The purification control device as claimed in  claim 2 , wherein\n the coefficient calculation unit repeatedly calculates the division value obtained by dividing the estimated ammonia concentration by the downstream ammonia concentration, for a number of times of calculations set to be greater than 1 in advance, and calculates an average of the calculated division values, as the correction coefficient.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 2.69091
- Patent Class: 422.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15170045', '15170177', '15787984', '12936706', '12917179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8192002328895409
- 35 USC 102 Novelty (BERT): 0.5449232491292538
- Combined Prediction Score: 0.7917725345135123
- Mean Citation Score: 356.48528600000014
- Max Citation Score: 417.83597
- Similarity Product: 333.4773759219717

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