PATENT CLAIM ANALYSIS

Application Number: 15887701
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["429", "429000"]

Abstract:
Systems and methods for transitioning a fuel cell system between operating modes. The fuel cell system may be a SOFC system comprising Ni-containing anodes. The transitions may be from a shutdown mode to a hot standby mode, from a hot standby mode to a power ready hot standby mode, from a power ready hot standby mode to an operating mode, from an operating mode to a power ready hot standby mode, from a power ready hot standby mode to a hot standby mode, from a hot standby mode to a shutdown mode, and from an operating mode to a shutdown mode.

Claim (Index 24):
A method of transitioning a fuel cell system having a stack comprising a plurality of fuel cells from a power-ready hot standby mode at a temperature in the range of 800 C to 1000 C wherein the anodes of the fuel cells are substantially free of oxidized metal, to a shutdown mode at ambient temperature wherein the anodes of the fuel cells comprise oxidized metal, the method comprising:\n flowing an oxidant in a cathode loop of the fuel cell system;\n controlling the mass flow rate or the temperature of the oxidant flowing in the cathode loop to thereby effect cooling of the fuel cell stack; \n inhibiting oxidation of the metal in the anodes of the fuel cells while the fuel cell stack cools down from the hot standby temperature to a predetermined temperature by\n applying an RCB to the fuel cell stack while the fuel cell stack above the predetermined temperature, and \n flowing a transition fuel in an anode loop of the fuel cell system at a mass flow rate sufficient to prevent oxidation of the metal in the anodes; and \n effecting oxidation of a metal contained in the anodes of the fuel cells while the fuel cell stack cools down from the predetermined temperature to ambient temperature by ceasing the flow of the transition fuel in the anode loop.

Metadata:
- Claim Count in Document: 71.0
- Percentile: 88.0
- Lexical Diversity: 3.54839
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15811290', '15333560', '15801112', '10993902', '15341376']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8791567693852157
- 35 USC 102 Novelty (BERT): 0.5091646389359928
- Combined Prediction Score: 0.8421575563402934
- Mean Citation Score: 264.966286
- Max Citation Score: 298.2686
- Similarity Product: 201.64411587820047

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

Dataset: test