PATENT CLAIM ANALYSIS

Application Number: 15764956
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["251", "368000"]

Abstract:
To provide a press-fitting, sintered valve seat having excellent valve coolability enabling use in high-efficiency engines, as well as excellent deformation resistance and wear resistance, first and second hard particles differing in hardness are dispersed in a total amount of 25-70% by mass in a network-shaped Cu matrix, the second hard particles having hardness of 300-650 HV0.1, lower than that of the first hard particles, and 0.08-2.2% by mass of P is contained in the sintered valve seat.

Claim (Index 1):
A sintered valve seat comprising hard particles dispersed in a matrix of Cu or its alloy,\n said hard particles being composed of at least one type of first hard particles, and at least one type of second hard particles; the total amount of said first and second hard particles being 25-70% by mass; said second hard particles having hardness of 300-650 HV0.1, lower than that of said first hard particles; and said sintered valve seat containing 0.08-2.2% by mass of P.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 1.70588
- Patent Class: 251.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15321645', '15778039', '14412910', '15126683', '15822857']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7982812921072096
- 35 USC 102 Novelty (BERT): 0.540034728985302
- Combined Prediction Score: 0.7724566357950189
- Mean Citation Score: 410.705554
- Max Citation Score: 464.4512
- Similarity Product: 353.31449992027285

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