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 11):
The \u03b3-aminobutyric acid hemihydrate crystal according to  claim 2 , wherein the X-ray powder diffraction pattern of the crystal has characteristic absorption peaks at diffraction angles 2\u03b8 of 12.3\u00b0\u00b10.2\u00b0, 17.8\u00b0\u00b10.2\u00b0, 20.6\u00b0\u00b10.2\u00b0, 24.5\u00b0\u00b10.2\u00b0, 25.4\u00b0\u00b10.2\u00b0, 26.5\u00b0\u00b10.2\u00b0, 28.5\u00b0\u00b10.2\u00b0, 29.6\u00b0\u00b10.2\u00b0, 31.6\u00b0\u00b10.2\u00b0, 34.6\u00b0\u00b10.2\u00b0, 36.0\u00b0\u00b10.2\u00b0, 37.5\u00b0\u00b10.2\u00b0, 38.4\u00b0\u00b10.2\u00b0, 39.5\u00b0\u00b10.2\u00b0.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 94.0
- Lexical Diversity: 1.74
- Patent Class: 562.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16078008', '15107032', '15542602', '13572367', '11688644']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.658860186080045
- 35 USC 102 Novelty (BERT): 0.5556376120106505
- Combined Prediction Score: 0.6485379286731057
- Mean Citation Score: 243.05503400000003
- Max Citation Score: 390.27954
- Similarity Product: 330.43398929874667

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