PATENT CLAIM ANALYSIS

Application Number: 16201786
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-04
Patent Classification: ["210", "723000"]

Abstract:
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps on (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining supersaturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).

Claim (Index 44):
A method for treating, and recovering phosphate compounds from, wastewater, the method comprising:\n (a) measuring, precipitating and removing fluoride from the wastewater by raising the pH of the wastewater by adding a calcium-containing base with a stoichiometric amount of calcium to precipitate the fluoride, wherein the pH does not promote precipitation of phosphates, and then further raising the pH of the wastewater by adding one or more calcium-free bases; (b) recovering struvite from the wastewater from which fluoride has been removed by maintaining supersaturation conditions for the struvite; and (c) polishing the wastewater, wherein step (c) comprises subjecting the wastewater from step (b) to a membrane treatment system to obtain a concentrate and a permeate comprising treated effluent.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 98.0
- Lexical Diversity: 1.85366
- Patent Class: 210.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13698129', '11303160', '10899326', '11736143', '11736144']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7508741836190919
- 35 USC 102 Novelty (BERT): 0.5955419979451396
- Combined Prediction Score: 0.7353409650516967
- Mean Citation Score: 275.841136
- Max Citation Score: 491.51883
- Similarity Product: 489.0503397821868

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