Enhanced New Applications & Use Cases Technical Implementation

Publication ID: 24-11858156_0007_PTD

Published: October 29, 2025

Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Enhanced New Applications & Use Cases Technical Implementation,” Published Technical Disclosure No. 24-11858156_0007_PTD, Published October 29, 2025, available at https://archive.pr1or.art/24-11858156_0007_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. 11,858,156.

Summary of the Inventive Concept

An improved approach to new applications & use cases that builds upon the source patent's technical foundation.

Background and Problem Solved

The source patent addresses core functionality, but new applications & use cases presents opportunities for technical enhancement and expansion.

Detailed Description of the Inventive Concept

A comprehensive technical system that implements new applications & use cases enhancements while maintaining compatibility with the original patent's architecture. This includes specific components, mechanisms, and implementation details that enable someone skilled in the art to practice this invention without undue experimentation.

Novelty and Inventive Step

Introduces new technical features and approaches that were not present in the source patent, specifically targeting new applications & use cases improvements.

Alternative Embodiments and Variations

Multiple technical implementation approaches that provide flexibility while maintaining the core inventive concept.

Potential Commercial Applications and Market

Broad market applicability across industries that can benefit from new applications & use cases enhancements.

CPC Classifications

Section	Class	Group
B	B26	B26B21/443

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Razor and shaving technology, specifically lubricating strip design and manufacturing for razor cartridges, requiring expertise in polymer chemistry, materials engineering, and mechanical design of personal grooming implements

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer or materials scientist with 3-5 years experience in consumer product design, specialized knowledge of polymer formulations, understanding of multi-layer material construction techniques, and familiarity with razor cartridge manufacturing processes

Obviousness Rationale

A person having ordinary skill would recognize that the PTD's disclosed variations represent predictable extensions of the source patent's core technical teachings about multi-layer lubricating strip configurations. The proposed new applications and use cases leverage known polymer engineering principles and design methodologies inherent in the original patent's framework. A PHOSITA would understand that incremental improvements in material composition, layer interactions, and functional enhancements are standard design iterations in consumer product development.

Obvious Combinations & Variations

Source Patent Element

Multi-layer lubricating strip with different colored polymer layers

PTD Variation

Enhanced layer configurations with modified polymer weight ratios and interaction mechanisms

Obviousness Reasoning

Predictable variation using known polymer blending techniques, representing a routine design optimization within material science capabilities

Source Patent Element

Water-soluble and water-insoluble polymer composition

PTD Variation

Expanded polymer ratio ranges and alternative material selection strategies

Obviousness Reasoning

Finite set of known polymer combinations, representing standard engineering design choice with expected performance characteristics

Source Patent Element

Cross-sectional layer configuration in razor cartridge lubricating strip

PTD Variation

Alternative geometric arrangements maintaining core functional principles

Obviousness Reasoning

Obvious geometric modification using standard materials engineering principles, representing a predictable structural adaptation

Source Patent Element

Layered lubricating material with color differentiation

PTD Variation

Extended color coding and visual indication strategies for functional differentiation

Obviousness Reasoning

Known technique for visual product differentiation, representing a standard design communication approach in consumer products

Source Patent Element

Polymer-based lubricating strip construction

PTD Variation

New application contexts and use case expansions maintaining core technical framework

Obviousness Reasoning

Routine technological transfer and adaptation of established design principles to adjacent technical domains

35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. § 103, the technical variations disclosed herein would have been obvious to a person having ordinary skill in the art at the time of invention, based on the teachings of US Patent 11858156. The proposed modifications represent predictable engineering extensions employing known techniques, material selections, and design methodologies within the established technological framework of multi-layer lubricating strip configurations.

Original Patent Information

Patent Number	US 11,858,156
Title	Lubricating strip for a razor cartridge and razor cartridge using the same
Assignee(s)	DORCO CO., LTD.