PATENT CLAIM ANALYSIS

Application Number: 15907117
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-12
Patent Classification: ["540", "461000"]

Abstract:
The present invention describes a new crystalline form of rifaximin, characterized in that it is a solvated form of rifaximin called rifaximin τ The invention also describes a process for the preparation of rifaximin τ, a pharmaceutical composition comprising said rifaximin form, and its use for treating inflammations and infections.

Claim (Index 6):
A process for producing diethylene glycol monoethyl ether solvate crystalline rifaximin \u03c4 comprising:\n adding diethylene glycol monoethyl ether to rifaximin, in a molar ratio ranging from 4:1 to about 500:1, at temperatures ranging from room temperature to 100\u00b0 C. for a duration of time ranging from 5 minutes to 5 hours to provide a rifaximin solution; \n cooling the solution to a temperature ranging from room temperature to \u221220\u00b0 C.; \n filtering the obtained precipitate; \n drying the obtained precipitate at a temperature ranging from room temperature to 40\u00b0 C. under a pressure comprised between ambient pressure and under vacuum, for a duration of time ranging from 5 minutes to 1 day, \n wherein the precipitate before drying is optionally washed with apolar solvent and thereafter lyophilized.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 88.0
- Lexical Diversity: 1.54286
- Patent Class: 540.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15310436', '13935331', '11814628', '13582676', '14261337']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6824196373719533
- 35 USC 102 Novelty (BERT): 0.586628824930818
- Combined Prediction Score: 0.6728405561278399
- Mean Citation Score: 234.718832
- Max Citation Score: 411.19748
- Similarity Product: 355.45676039314753

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

Dataset: test