PATENT CLAIM ANALYSIS

Application Number: 15772946
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["546", "084000"]

Abstract:
The present invention relates to the technical field of chemical drugs and crystal form processes, and to a pyrroloquinoline quinine B crystal form and a preparation method therefor. The present invention comprehensively characterizes the pyrroloquinoline quinine B crystal form by virtue of means such as X-ray powder diffraction analysis, thermo-gravimetric analysis, and differential scanning calorimetry analysis so as to find the fact that the pyrroloquinoline quinine B crystal form is high in crystallinity and low in hygroscopicity, and a regular crystal form can be formed, thereby facilitating process treatment and improvement of physical and chemical properties of a medicine, and improving the patent medicine performance. The preparation method for the pyrroloquinoline quinone B crystal form provided in the present invention is simple, easy to control, and high in reproducibility.

Claim (Index 11):
A method for preparing the crystal form B of pyrroloquinoline quinone of  claim 1 , comprising the steps of: pyrroquinoline quinine acid is placed in a vacuum drying oven at room temperature, and the temperature is raised, thereby obtaining the crystal form B of pyrroloquinoline quinone.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 93.0
- Lexical Diversity: 1.97183
- Patent Class: 546.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14441571', '14897926', '14420754', '15762895', '13814820']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7684658003343401
- 35 USC 102 Novelty (BERT): 0.5057230192365797
- Combined Prediction Score: 0.7421915222245641
- Mean Citation Score: 241.91967
- Max Citation Score: 264.032
- Similarity Product: 173.2378410167694

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