PATENT CLAIM ANALYSIS

Application Number: 15762849
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["546", "322000"]

Abstract:
Provided are an inositol nicotinate crystalline form A and a preparation method therefor. The X-ray powder diffraction analysis, obtained by using Cu-Kα ray measurement, of the inositol nicotinate crystalline form A has obvious characteristic diffraction peaks at least at 2θ values, expressed in degrees, of 7.05, 7.41, 9.74, 17.80, 19.86, 23.57, 25.48 and 26.20 with an error range of +/−0.2°. The preparation method is one of or a mixed crystallization method of two or more of an evaporation crystallization method, a cooling crystallization method or an anti-solvent crystallization method. The process thereof is simple and easy to operate, and has more selectivity; the inositol nicotinate crystalline form A can be prepared by various methods, and the prepared product has a good crystallization degree and high chemical stability; and the inositol nicotinate crystalline form A prepared by the present method does not have the problem that a residual solvent is out-of-limit.

Claim (Index 12):
A preparation method of the crystal form A of inositol nicotinate, wherein the method is the evaporative crystallization method, the cooling crystallization method or the anti-solvent crystallization method, or a mixed crystallization method comprising at least two of the evaporative crystallization method, the cooling crystallization method and the anti-solvent crystallization method.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 90.0
- Lexical Diversity: 1.89888
- Patent Class: 546.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14896748', '16087317', '15549918', '16300303', '10527193']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7593691370899377
- 35 USC 102 Novelty (BERT): 0.4865802271572081
- Combined Prediction Score: 0.7320902460966647
- Mean Citation Score: 207.13343
- Max Citation Score: 211.54416
- Similarity Product: 150.87086829202653

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