PATENT CLAIM ANALYSIS

Application Number: 16043442
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["210", "723000"]

Abstract:
Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO 3  and NaNO 3 , providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.

Claim (Index 1):
A method for regenerating a salt bath comprising:\n heating a salt bath comprising a phosphate salt and at least one of KNO 3  and NaNO 3  to a temperature of greater than or equal to 360\u00b0 C. and less than or equal to 430\u00b0 C.; contacting at least a portion of an ion-exchangeable substrate comprising lithium cations with the salt bath, whereby lithium cations diffuse from the ion-exchangeable substrate and are dissolved in the salt bath; and selectively precipitating dissolved lithium cations from the salt bath, wherein the concentration of dissolved lithium in the salt bath is greater than or equal to 0 wt % lithium and less than or equal to 2.0 wt % lithium.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 95.0
- Lexical Diversity: 2.18868
- Patent Class: 210.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15777422', '15672567', '15303143', '14540328', '12788525']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8066540095198093
- 35 USC 102 Novelty (BERT): 0.6385299470946816
- Combined Prediction Score: 0.7898416032772965
- Mean Citation Score: 395.93687
- Max Citation Score: 695.8578
- Similarity Product: 553.0970917437315

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

Dataset: test