PATENT CLAIM ANALYSIS

Application Number: 15780574
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["420", "008000"]

Abstract:
A high-strength bolt is provided that has high strength and excellent hydrogen embrittlement resistance characteristics. A bolt according to this invention has a chemical composition consisting of, in mass %, C: 0.22 to 0.40%, Si: 0.10 to 1.50%, Mn: 0.20 to less than 0.40%, P: 0.020% or less, S: 0.020% or less, Cr: 0.70 to 1.45%, Al: 0.005 to 0.060%, Ti: 0.010 to 0.045%, B: 0.0003 to 0.0040%, N: 0.0015 to 0.0080% and O: 0.0020% or less, with a balance being Fe and impurities, and satisfying Formula (1) and Formula (2), and with the high-strength bolt having a tensile strength of 1000 to 1300 MPa. 0.50≤C+Si/10+Mn/5+5Cr/22≤0.85  (1) Si/Mn>1.0  (2) Where, a content (mass %) of a corresponding element is substituted for each symbol of an element in Formula (1) and Formula (2).

Claim (Index 8):
The high-strength bolt according to  claim 4 , wherein:\n at a root of a thread of the high-strength bolt, an absolute value of a compressive residual stress of an outer layer of the root of the thread is 10 to 90% of the tensile strength of the high-strength bolt.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 93.0
- Lexical Diversity: 2.06593
- Patent Class: 420.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15737799', '11490975', '14370814', '15022857', '15546063']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7486689636570725
- 35 USC 102 Novelty (BERT): 0.5260027163311357
- Combined Prediction Score: 0.7264023389244788
- Mean Citation Score: 252.91833
- Max Citation Score: 320.17618
- Similarity Product: 232.7065554736948

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