PATENT CLAIM ANALYSIS

Application Number: 16301027
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-06
Patent Classification: ["514", "254030"]

Abstract:
Provided are a preparation method for a crystalline form of the compound represented by formula (A), as well as a method for preparation thereof, a composition thereof, and an application thereof in preparing an angiotensin II receptor antagonist or an application in preparing a drug for preventing and/or treating hypertension, chronic heart failure and diabetic nephropathy.

Claim (Index 8):
A preparation method of the composition according to  claim 7 , wherein, the method comprises one or more of the following proceedings:\n (1) adding isopropyl acetate to the crystalline form II to obtain a suspension, and stirring at 50\u00b0 C. to 90\u00b0 C. to obtain a mixture of the crystalline form I and the crystalline form II; preferably, stirring the suspension at 50\u00b0 C. to 90\u00b0 C. for 3 hours to 3 days, and most preferably stirring the suspension at 60\u00b0 C. to 90\u00b0 C. for 5 hours to 1 day; (2) pulverizing and sieving a wet product of the crystalline form II followed by vacuum drying at 40\u00b0 C. to 60\u00b0 C. (such as 50\u00b0 C.), preferably for 3 hours to 3 days, for example 24 h; (3) vacuum drying a wet product of the crystalline form II at 40\u00b0 C. to 60\u00b0 C. (such as 50\u00b0 C.) for 3 hours to 3 days followed by micronizing; and (4) adding a solvent to the crystalline form II to obtain a suspension, stirring the suspension at room temperature to obtain a mixture of the crystalline form I and the crystalline form II; preferably, the solvent is selected from methyl tert-butyl ether or a mixture of ethanol and methylcyclohexane; more preferably, the volume ratio of the two solvents in the mixture is from 1:8 to 8:1, and most preferably from 1:6 to 5:1; preferably, stirring for 3 hours to 3 days, and most preferably, stirring for 1-3 days.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 98.0
- Lexical Diversity: 1.46512
- Patent Class: 514.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13001715', '15740719', '13805920', '14116099', '13505360']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7800917283722686
- 35 USC 102 Novelty (BERT): 0.5372787179597793
- Combined Prediction Score: 0.7558104273310197
- Mean Citation Score: 333.132024
- Max Citation Score: 349.10037
- Similarity Product: 233.33820509500265

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

Dataset: test