PATENT CLAIM ANALYSIS

Application Number: 16094279
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["560", "038000"]

Abstract:
A method of preparing D-4,4′-biphenylalanine alkyl ester or L-4,4′-biphenylalanine alkyl ester by subjecting DL-4,4′-biphenylalanine alkyl ester to optical resolution using chiral diaroyl tartaric acid as an optical resolving agent is provided.

Claim (Index 2):
The method of  claim 1 , wherein the chiral diaroyl tartaric acid of Chemical Formula 2 as the optical resolving agent is chiral diaroyl-D-tartaric acid of Chemical Formula 5 below or chiral diaroyl-L-tartaric acid of Chemical Formula 6 below: wherein X is the same as or different from each other and are hydrogen, a C1 to C3 alkyl group, fluorine, chlorine, bromine, iodine, a cyano group or a nitro group.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 1.18519
- Patent Class: 560.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11267448', '15762370', '12519488', '13055385', '12470377']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7417783478688386
- 35 USC 102 Novelty (BERT): 0.5308047427076255
- Combined Prediction Score: 0.7206809873527172
- Mean Citation Score: 239.803778
- Max Citation Score: 278.14316
- Similarity Product: 224.08225576053616

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

Dataset: test