PATENT CLAIM ANALYSIS

Application Number: 15760136
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["700", "282000"]

Abstract:
A recording means records a value of pressure of fluid on a downstream side of a differential pressure generation means during a time period after a flow control valve open and control of a flow rate is started or after the flow control valve is closed and the control of a flow rate is stopped until a measured flow rate becomes stable, and a diagnostic means contrasts a controlled value acquired based in a value of the pressure of the fluid on the downstream side recorded by the recording means, with a controlled value when abnormality has not occurred, and diagnoses that abnormality has occurred in the flow meter when a difference between the both controlled values exceeds a threshold. Thereby, a mass flow controller and a diagnostic method which can simply diagnose generation of abnormality in a differential pressure type flow meter without requiring time only for performing the diagnosis.

Claim (Index 23):
The mass flow controller according to  claim 22 , wherein:\n said controlled value is both, or either one of, a time period after the control of the flow rate with said flow control valve is started until the absolute value of the value obtained by differentiating said opening pressure value with respect to time becomes maximum and a time period after the control of the flow rate with said flow control valve is stopped until the absolute value of the value obtained by differentiating said closing pressure value with respect to time becomes maximum.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.12162
- Patent Class: 700.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12513353', '13651089', '13250602', '12065438', '14671746']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3981575738713825
- 35 USC 102 Novelty (BERT): 0.5016210063587279
- Combined Prediction Score: 0.4085039171201171
- Mean Citation Score: 209.490862
- Max Citation Score: 230.46364
- Similarity Product: 152.44515391428948

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

Dataset: test