PATENT CLAIM ANALYSIS

Application Number: 15893853
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["251", "330000"]

Abstract:
A valve stem seal hermetically seals a space formed between a valve stem of a valve which establishes and interrupts communication between a cylinder and a port and a valve guide into which the valve stem is inserted in a reciprocally movable manner, wherein the valve stem seal includes: a reinforcing ring formed into an annular shape centered about an axis, and extending in a radial direction of a ring of the reinforcing ring; and an elastic body portion formed into an annular shape centered about the axis, attached to the reinforcing ring, and including a seal lip which abuts on the valve stem.

Claim (Index 6):
The hermetic sealing structure according to  claim 3 , wherein the elastic body portion includes a back pressure lip which is disposed on a side closer to the valve guide than the seal lip, and abuts on the valve stem, and\n the back pressure lip is disposed in a space formed between the one end of the valve guide and the accommodating portion.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 88.0
- Lexical Diversity: 2.09434
- Patent Class: 251.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15113066', '13179648', '10612454', '13628271', '14117808']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7778102506044899
- 35 USC 102 Novelty (BERT): 0.4717833394020012
- Combined Prediction Score: 0.7472075594842411
- Mean Citation Score: 227.33785
- Max Citation Score: 248.5882
- Similarity Product: 199.94543341822623

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

Dataset: test