PATENT CLAIM ANALYSIS

Application Number: 16011870
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["546", "153000"]

Abstract:
A method for producing a drug substance of crystalline pitavastatin calcium excellent in stability, is presented. In the production of a compound (pitavastatin calcium) represented by the formula (1): The water content is adjusted to a level of from 5 to 15%, and the crystal form is controlled to be crystal form A, thereby to obtain a drug substance excellent in stability.

Claim (Index 15):
The method according to  claim 7 , wherein the pitavastatin calcium salt is produced by:\n adding a calcium compound to a solution comprising a compound according to formula (2): wherein M+ represents an alkali metal ion, dissolved in water or in a C 1-4  alcohol comprising at least 60% of water;\n filtering precipitated crystals; and \n drying the crystals so that a water content of the crystals is 9% (w/w) or greater.

Metadata:
- Claim Count in Document: 68.0
- Percentile: 94.0
- Lexical Diversity: 1.58696
- Patent Class: 546.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13818681', '13665932', '15749377', '13884734', '15532281']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7327088611606837
- 35 USC 102 Novelty (BERT): 0.4906272598967066
- Combined Prediction Score: 0.708500701034286
- Mean Citation Score: 192.428704
- Max Citation Score: 237.1111
- Similarity Product: 179.39631320800785

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

Dataset: test