PATENT CLAIM ANALYSIS

Application Number: 15751128
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["055", "497000"]

Abstract:
Provided are a filter medium for an air filter capable of having extended life even when composed of embossable material. The filter medium ( 1 ) has a tensile elongation of 10% or greater, and includes a main collection layer ( 30 ) having a filing rate of 5% to 15%, a thickness of 0.35 mm to 0.70 mm, and a peak in a fiber diameter distribution at less than 1.0 μm and a peak at 1.0 μm or greater. An average fiber diameter of small fiber diameters of less than 1.0 μm is from 0.1 μm to less than 0.8 μm, and an average fiber diameter of large fiber diameters of 1.0 μm or greater is from 1.2 μm to less than 3.0 μm. A volume ratio of the fibers having the small fiber diameter to the fibers having the large fiber diameter is from 30:70 to 80:20.

Claim (Index 2):
A filter medium for an air filter, comprising:\n an upstream collection layer; and a main collection layer disposed downstream side of the upstream collection layer in an airflow, the filter medium for an air filter having a tensile elongation of 10% or greater, the upstream collection layer having:\n when air containing NaCl particles with a particle size of 0.4 \u03bcm is passed through the upstream collection layer at a flow rate of 5.3 cm/sec, a collection efficiency of the NaCl particles of 5% to 50%; \n a thickness of 0.15 mm to 0.45 mm; \n one peak in a fiber diameter distribution; and \n an average fiber diameter of 1.0 \u03bcm to 2.0 \u03bcm, \n the main collection layer having:\n a filing rate of 5% to 15%; \n a thickness of 0.26 mm to 0.56 mm; \n a peak at less than 1.0 \u03bcm, and a peak at 1.0 \u03bcm or greater in a fiber diameter distribution; \n the main collection layer, including:\n fibers having a small fiber diameter of less than 1.0 \u03bcm, with an average fiber diameter of 0.1 \u03bcm to less than 0.8 \u03bcm; and \n fibers having a large fiber diameter of 1.0 \u03bcm or greater, with an average fiber diameter of 1.2 \u03bcm to 3.0 \u03bcm, \n with a volume ratio of the fibers having the small fiber diameter to the fibers having the large fiber diameter, that is, the fibers having the small fiber diameter:fibers having the large fiber diameter, being from 30:70 to 80:20.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 88.0
- Lexical Diversity: 2.16216
- Patent Class: 55.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16084127', '15538597', '13703860', '11499506', '14394946']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8236681602313115
- 35 USC 102 Novelty (BERT): 0.4873877444103803
- Combined Prediction Score: 0.7900401186492184
- Mean Citation Score: 232.520804
- Max Citation Score: 271.04312000000004
- Similarity Product: 209.9987010726643

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