PATENT CLAIM ANALYSIS

Application Number: 15899807
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["423", "447100"]

Abstract:
Highly purified carbon nanotubes (CNT) having virtually no carbonaceous impurities (amorphous carbon) nor inorganic impurities (metal and metal oxides), and methods of their preparation are described. The purified CNT feature excellent electrical, mechanical, and thermal properties due to the near total absence of detrimental impurities. The CNT starting material is preferably in the form of wafer, film, or buckypaper for efficient diffusion of purifying media. The highly pure CNT are prepared by heat treating a CNT starting material in a specified amount of oxygen, then treating the CNT in a solution comprising water and acid, or further heat treating the CNT in an atmosphere comprising chlorine (Cl 2 ). Extremely low levels of inorganic impurities may be achieved by treating sequentially with a treatment solution followed by chlorine. Removal of chloride from purified CNT may be achieved by further treating the chlorine-treated material in an atmosphere comprising hydrogen (H 2 ).

Claim (Index 3):
The method of  claim 1 , wherein in step (a), the carbon nanotube starting material is in the form of a wafer, film, or buckypaper having a thickness less than 50 micrometers.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 88.0
- Lexical Diversity: 1.86957
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14663339', '13408884', '14875618', '14875564', '14825021']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7669592924490076
- 35 USC 102 Novelty (BERT): 0.5714073849655726
- Combined Prediction Score: 0.7474041017006641
- Mean Citation Score: 298.703756
- Max Citation Score: 441.23486
- Similarity Product: 393.4288868942047

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

Dataset: test