PATENT CLAIM ANALYSIS

Application Number: 16076712
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["428", "586000"]

Abstract:
A steel material for oil country tubular goods that has a high strength and excellent SSC resistance is provided. The steel material according to this invention contains, in mass %, C: more than 0.45 to 0.65%, Si: 0.10 to 1.0%, Mn: 0.1 to 1.0%, P: 0.050% or less, S: 0.010% or less, Al: 0.01 to 0.1%, N: 0.01% or less, Cr: 0.1 to 2.5%, Mo: 0.25 to 5.0%, and Co: 0.05 to 5.0%, and satisfies expressions (1) and (2), and contains 90% or more of tempered martensite by volume ratio: C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15−Co/6+α≥0.70  (1) (3C+Mo+3Co)/(3Mn+Cr)≥1.0  (2) Effective B=B−11(N−Ti/3.4)/14  (3) where, α in expression (1) is 0.250 when effective B (mass %) defined by expression (3) is 0.0003% or more, and is 0 when effective B is less than 0.0003%.

Claim (Index 14):
The steel material according to  claim 3 , wherein the chemical composition contains, in mass %, one or more types of element selected from a group consisting of:\n Ca: 0.0003 to 0.004%, Mg: 0.0003 to 0.004%, Zr: 0.0003 to 0.004%, and rare earth metal: 0.0003 to 0.004%.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 96.0
- Lexical Diversity: 2.15957
- Patent Class: 428.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16328777', '16076705', '15109139', '14408351', '15505678']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9239275500393116
- 35 USC 102 Novelty (BERT): 0.5818695296450651
- Combined Prediction Score: 0.889721747999887
- Mean Citation Score: 396.112156
- Max Citation Score: 475.8955
- Similarity Product: 442.2575502724648

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