PATENT CLAIM ANALYSIS

Application Number: 16186742
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["210", "500270"]

Abstract:
Hierarchical porous membranes suitable for use in oil/water separation processes are provided. The membranes described herein are particularly well suited for separating trace amounts of water (e.g., no greater than 3 wt % water content, no greater than 1 wt % water content, or 50-1000 ppm water) from oil in droplets less than 1 um in size. The membranes have a wide range of applications, including deep seep oil exploration, oil purification, and oil spill cleanup.

Claim (Index 13):
A method of preparing a hierarchical porous membrane suitable for use in an oil/water separation process, the method comprising: (a) combining a polymer, a pore former, and a solvent to make a polymer solution; (b) following step (a), allow the solution to sit for a predetermined time (e.g., 12 hours) at a predetermined temperature (e.g., 50.degree. C.) to allow release of air bubbles; and (c) casting a thin layer (e.g., on the order of 100-500 microns) on a plate (e.g., glass plate) and immersing the plate into a solution (e.g., water at room temperature) to undergo coagulation, thereby forming the hierarchical porous membrane; (d) optionally, rinsing the hierarchical porous membrane in a second solution (e.g., water for a predetermined time period, e.g., 24 hours); and (e) optionally, immersing the hierarchical porous membrane in a third solution (e.g., 1:1 glycerol-water solution for a predetermined time period, e.g., 24 hours).

Metadata:
- Claim Count in Document: 20.0
- Percentile: 98.0
- Lexical Diversity: 1.5
- Patent Class: 210.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14303297', '13781601', '14213280', '14939953', '13159950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7876294390993025
- 35 USC 102 Novelty (BERT): 0.5305747811628198
- Combined Prediction Score: 0.7619239733056542
- Mean Citation Score: 258.1815
- Max Citation Score: 374.59952
- Similarity Product: 237.860130544405

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