PATENT CLAIM ANALYSIS

Application Number: 15758790
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["429", "429000"]

Abstract:
Improved methods are disclosed for shutting down and storing a fuel cell system, particularly for below freezing temperature conditions. The methods comprise stopping power production from the fuel cell stack, monitoring its temperature, and repeatedly performing a predetermined warming operation if the stack temperature falls to a normal threshold temperature. In the improved methods, either an initial threshold temperature and/or an initial warming operation are used that differ from the respective normal threshold temperature and the predetermined warming operation.

Claim (Index 9):
The method of  claim 1  wherein the step of determining an average hydration state for the cells in the fuel cell stack is selected from the group consisting of deriving the state based on known stack operating conditions just prior to stopping power production, measuring the average cell conductivity, and comparing the polarization characteristics of the stack to a reference state.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 90.0
- Lexical Diversity: 1.72
- Patent Class: 429.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15258141', '10833228', '12625669', '10109982', '12619000']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8961013352594989
- 35 USC 102 Novelty (BERT): 0.5437117637661434
- Combined Prediction Score: 0.8608623781101634
- Mean Citation Score: 242.116776
- Max Citation Score: 442.84192
- Similarity Product: 283.1352826987457

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