PATENT CLAIM ANALYSIS

Application Number: 15741772
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-05
Patent Classification: ["568", "069000"]

Abstract:
A copper protective agent is provided. The copper protective agent is represented by a general formula (GI): HS—R (GI); and R is a linear or branched alkyl group having 1 to 20 carbon atoms.

Claim (Index 5):
A method of preparing a copper protective agent, comprising steps of:\n a step S1 of adding N-butyl lithium into a tetrahydrofuran solution having a halogenated hydrocarbon dropwise at \u221278\u00b0 C. under protection of an inert gas, to form a reaction system; a step S2 of adding sulfur powders into the reaction system, and gradually increasing a temperature of the reaction system to the room temperature, wherein the sulfur powders and the reaction system react at the room temperature; a step S3 of extracting the reaction system with an organic solvent to obtain a crude product; and a step S4 of purifying the crude product by a column chromatography or a distillation technique to obtain a purified copper protective agent; wherein the copper protective agent is represented by a general formula (GI):\n HS\u2014R(GI); and \n wherein R is a linear or branched alkyl group having 1 to 20 carbon atoms.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 1.3125
- Patent Class: 568.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14504681', '12095918', '15316444', '14765730', '12651946']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6419747283071334
- 35 USC 102 Novelty (BERT): 0.4745860195667057
- Combined Prediction Score: 0.6252358574330907
- Mean Citation Score: 132.15219
- Max Citation Score: 137.14256
- Similarity Product: 99.9064106457138

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

Dataset: test