PATENT CLAIM ANALYSIS

Application Number: 16012315
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["244", "204100"]

Abstract:
Airfoil and hydrofoils systems with structures having a surface texture defined by fractal geometries are described. Raised portions or fractal bumps can be included on the surfaces, forming a surface texture. The surface textures can be defined by two-dimensional fractal shapes, partial two-dimensional fractal shapes, non-contiguous fractal shapes, three-dimensional fractal objects, and partial three-dimensional fractal objects. The surfaces can include indents having fractal geometries. The indents can have varying depths and can be bordered by other indents, or bumps, or smooth portions of the airfoil or hydrofoil structure. The fractal surface textures can reduce vortices inherent from airfoil and hydrofoil structures. The roughness and distribution of the fractal surface textures reduce the vortices, improving laminar flow characteristics and at the same time reducing drag. The systems are passive and do not require applied power.

Claim (Index 2):
A drag reduction system comprising:\n a fan blade with the body having a fluid contact surface operative for movement within a first fluid where in the body has a longitudinal axis is asymmetrical in cross section along the longitudinal axis; and a plurality of discrete fractal-base surface features disposed in an asymmetrical pattern on a portion of the body and operative to reduce drag when the fluid-contact surface is moving relative to the first fluid; wherein the plurality of fractal-based surface features comprises:\n (i) a plurality of protrusions on the fluid context surface, each protrusion having a fractal shape, and \n (ii) a plurality of indents on the fluid context surface each indent having a fractal shape wherein each indent is adjacent to at least one protrusion.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 2.14286
- Patent Class: 244.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14247958', '14043781', '14071235', '14853298', '15583137']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8169603800199117
- 35 USC 102 Novelty (BERT): 0.569797971851734
- Combined Prediction Score: 0.792244139203094
- Mean Citation Score: 227.966046
- Max Citation Score: 429.99982
- Similarity Product: 409.5259203845144

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