PATENT CLAIM ANALYSIS

Application Number: 15872277
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["429", "144000"]

Abstract:
A microporous battery separator is provided having a first co-extruded multilayered portion and a second co-extruded multilayered portion. The two portions are bonded together. In a preferred embodiment, the battery separator has two substantially identical multilayered portions bonded together face-to-face. Each of the two multilayered portions has at least one strength layer and at least one shutdown layer. Methods for making the battery separators are also provided. Preferably, a tubular multilayered film is extruded, and collapsed onto itself to form a multilayered battery separator precursor. The precursor is then bonded and annealed before it is stretched to form a microporous multilayer battery separator.

Claim (Index 7):
The method of  claim 1  wherein said tubular film has six layers, the second and fifth layers consisting essentially of polyethylene, the first, third, fourth and sixth layers consisting essentially of polypropylene, said third and fourth layers being bonded together.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 1.91525
- Patent Class: 429.0
- Transitional Phrase Type: half
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11744930', '14950625', '15223032', '15172215', '10041348']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8902047830733729
- 35 USC 102 Novelty (BERT): 0.5382631171615024
- Combined Prediction Score: 0.8550106164821859
- Mean Citation Score: 259.901524
- Max Citation Score: 402.8611
- Similarity Product: 250.83715267237423

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