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 4):
The filter medium for an air filter according to  claim 1 , wherein:\n when air is passed through the filter medium for an air filter at a flow rate of 5.3 cm/sec, a pressure drop is from 30 Pa to 55 Pa, and when air containing NaCl particles with a particle size of 0.4 \u03bcm is passed through the filter medium for an air filter at a flow rate of 5.3 cm/sec, a collection efficiency of the NaCl particles is 75% or greater, and when air containing polyalphaolefin particles with a number median size of 0.25 \u03bcm is continuously blown through the filter medium for an air filter at a flow rate of 5.3 cm/sec, and the pressure drop rises by 250 Pa, a dust holding capacity of the polyalphaolefin particles is 5.0 g/m 2  or greater.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 88.0
- Lexical Diversity: 2.16216
- Patent Class: 55.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16084127', '15538597', '13703860', '11499506', '14394946']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8407055619519508
- 35 USC 102 Novelty (BERT): 0.4856648151917709
- Combined Prediction Score: 0.8052014872759328
- Mean Citation Score: 232.520804
- Max Citation Score: 271.04312000000004
- Similarity Product: 223.910011643324

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