Advanced Hair Cutting Comb: Precision Trimming Innovation

Publication ID: 24-11857054_0006_PTD

Published: November 07, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Hair Cutting Comb: Precision Trimming Innovation,” Published Technical Disclosure No. 24-11857054_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857054_0006_PTD

This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,054.

Background and Problem Solved

The original cutting comb patent, while effective for cutting hair, has limitations in terms of accommodating different hair types, collecting cut hair, and providing comfortable usage. The present invention addresses these limitations by introducing novel features that enhance the overall cutting comb experience.

Novelty and Inventive Step

The new claims introduce novel features that significantly improve upon the original cutting comb patent. The adjustable teeth, detachable hair collection, ergonomic design, and automated hair-length detection features are non-obvious and provide a substantial enhancement to the original invention.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include interchangeable teeth modules for different hair types, adjustable comb bodies for varying hair lengths, or integrated hair drying and styling features. Variations could also include compact, travel-sized versions of the cutting comb system or specialized versions for specific hair types, such as curly or straight hair.

Potential Commercial Applications and Market

The enhanced cutting comb system has significant commercial potential in the hair care industry, particularly among professional hairstylists and individuals seeking high-quality, at-home hair trimming solutions. The invention's innovative features and improved user experience could capture a substantial market share, with potential applications in salons, spas, and retail markets.

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Hair cutting tools and grooming devices, specifically precision cutting combs with specialized tooth configurations for hair trimming and split end removal

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with expertise in hair styling tools, mechanical engineering, and product design, familiar with ergonomic principles and hair cutting technologies

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's variations represent predictable extensions of the source patent's core cutting comb technology. The disclosed improvements leverage known mechanical design principles and address common user needs in hair trimming tools. The variations demonstrate incremental enhancements that would be apparent to a skilled designer seeking to optimize hair cutting functionality.

Obvious Combinations & Variations

Source Patent Element

Comb with teeth oriented perpendicularly to longitudinal axis

PTD Variation

Adjustable teeth length to accommodate different hair types

Obviousness Reasoning

A PHOSITA would recognize that variable tooth length is a predictable solution for addressing diverse hair textures, representing a simple mechanical modification to the existing tooth design

Source Patent Element

Hair cutting comb with planar hair-dividing elements

PTD Variation

Integrated hair collection module with vacuum mechanism

Obviousness Reasoning

Combining hair cutting tools with collection systems is a known technique in grooming technologies, representing an obvious improvement to reduce user cleanup and enhance functionality

Source Patent Element

Fixed comb body configuration

PTD Variation

Ergonomic handle with pivoting joint for multiple cutting angles

Obviousness Reasoning

Improving tool ergonomics through adjustable joints is a standard design approach in handheld devices, providing predictable benefits in user comfort and manipulation

Source Patent Element

Manual hair cutting mechanism

PTD Variation

Automated hair-length detection with motorized adjustment

Obviousness Reasoning

Integrating sensor-based length detection represents an obvious technological progression, applying well-known automation principles to existing manual hair cutting technologies

Source Patent Element

Single comb body design

PTD Variation

Interchangeable teeth modules for different hair types

Obviousness Reasoning

Modular design approaches are common in grooming tools, representing a predictable solution for expanding product versatility through simple mechanical interchangeability

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857054 for a cutting comb, the present publication demonstrates that the claimed variations would have been obvious to a person having ordinary skill in the art at the time of invention. The disclosed improvements represent predictable technological extensions utilizing standard design techniques, thereby rendering subsequent claims involving similar hair cutting tool configurations unpatentable under 35 U.S.C. Section 103.

Original Patent Information

Patent Number	US 11,857,054
Title	Cutting comb
Assignee(s)	ATHROA HAIR CARE