PATENT CLAIM ANALYSIS

Application Number: 15898745
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["423", "447100"]

Abstract:
The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method comprises advancing a precursor fiber through an oxidation oven wherein the fiber is subjected to controlled stretching in an oxidizing atmosphere in which tension loads are distributed amongst a plurality of passes through the oxidation oven, which permits higher cumulative stretches to be achieved. The method also includes subjecting the fiber to controlled stretching in two or more of the passes that is sufficient to cause the fiber to undergo one or more transitions in each of the two or more passes. The invention is also directed to an oxidation oven having a plurality of cooperating drive rolls in series that can be driven independently of each other so that the amount of stretch applied to the oven in each of the plurality of passes can be independently controlled.

Claim (Index 15):
The carbon fiber according to  claim 9 , wherein the carbon fiber has a tensile strength of at least 1058 ksi.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 88.0
- Lexical Diversity: 2.11538
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14797314', '15144060', '14508408', '14250491', '13967442']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8686506531338952
- 35 USC 102 Novelty (BERT): 0.5621608543959886
- Combined Prediction Score: 0.8380016732601046
- Mean Citation Score: 465.45614400000005
- Max Citation Score: 472.1287
- Similarity Product: 378.9547926948011

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