PATENT CLAIM ANALYSIS

Application Number: 16062716
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["562", "554000"]

Abstract:
The present invention discloses a γ-aminobutyric acid hemihydrate crystal, its molecular formula is C 4 H 9 NO 2 .0.5H 2 O. It also discloses a method of preparing a γ-aminobutyric acid hemihydrate crystal, including first adding crude γ-aminobutyric acid to water to prepare a γ-aminobutyric acid suspension at an initial concentration of 1.2-2.0 g/mL; then stirring the suspension at a constant temperature of 5-10° C. for 6-12 hours, followed by filtering and drying to obtain the γ-aminobutyric acid hemihydrate crystal. The γ-aminobutyric acid hemihydrate crystal is stable, does not easily absorb moisture and agglomerate, and is convenient for further processing and use. The crystal has a large main particle size, uniform particle size distribution, high bulk density, good flowability, and a purity of ≥99%. The preparation method of the crystal according to the present invention is simple, easy to operate, highly efficient and low in energy consumption, and is suitable for large-scale industrial production.

Claim (Index 5):
A method of preparing a \u03b3-aminobutyric acid hemihydrate crystal, comprising the steps of:\n S1: adding crude \u03b3-aminobutyric acid to water to prepare a \u03b3-aminobutyric acid suspension at an initial concentration of 1.2 g/mL to 2.0 g/mL; and S2: stirring the product of S1 at a constant temperature between 5-10\u00b0 C. for 6-12 hours, filtering and drying to obtain the \u03b3-aminobutyric acid hemihydrate crystal.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 94.0
- Lexical Diversity: 1.74
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16078008', '15107032', '15542602', '13572367', '11688644']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6323648864958198
- 35 USC 102 Novelty (BERT): 0.5526253259566497
- Combined Prediction Score: 0.6243909304419027
- Mean Citation Score: 243.05503400000003
- Max Citation Score: 390.27954
- Similarity Product: 309.9175578824043

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

Dataset: test