Advanced Antipathogenic Face Mask: Multi-Environment Protection

Publication ID: 24-11857001_0009_PTD

Published: October 27, 2025

Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Advanced Antipathogenic Face Mask: Multi-Environment Protection,” Published Technical Disclosure No. 24-11857001_0009_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11857001_0009_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. 11,857,001.

Background and Problem Solved

The original antipathogenic face mask invention provided a groundbreaking solution for inactivating viruses, bacteria, and fungi. However, certain environments require additional features and adaptations to ensure optimal performance and user safety. This new invention addresses these limitations by introducing specialized variations of the antipathogenic face mask, designed to meet the unique demands of various operational environments.

Novelty and Inventive Step

The new claims introduce novel adaptations of the original antipathogenic face mask, providing specialized solutions for specific environments. The inventive step lies in the unique combination of features and materials that address the particular challenges of each environment, going beyond the original invention's scope.

Alternative Embodiments and Variations

Alternative embodiments may include additional features, such as sensors to monitor environmental conditions, communication devices for real-time updates, or integrated power sources for extended use. Variations of the invention could also include different materials, such as nanofibers or graphene, to enhance the antipathogenic properties or improve user comfort.

Potential Commercial Applications and Market

The adaptive antipathogenic face masks have significant commercial potential in various industries, including healthcare, military, disaster relief, and construction. The invention's ability to address specific environmental challenges makes it an attractive solution for organizations operating in these areas.

CPC Classifications

Section	Class	Group
A	A41	A41D13/1192
D	D06	D06B13/00
D	D06	D06M11/77
A	A41	A41D2500/30
D	D06	D06M2101/20
D	D10	D10B2501/04

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Personal Protective Equipment (PPE) and Advanced Materials Engineering, focusing on antimicrobial protective devices with specialized material compositions

Person of Ordinary Skill (PHOSITA) Profile

A materials engineer or textile scientist with expertise in protective equipment design, familiar with antimicrobial technologies, polymer composites, and environmental adaptation strategies for protective gear

Obviousness Rationale

A PHOSITA would recognize that the source patent's silicon nitride-embedded face mask provides a fundamental template for environmental adaptations. The disclosed variations represent predictable extensions of the original antipathogenic technology, applying known design principles to specific use contexts. The core antimicrobial mechanism remains consistent across variations, with modifications addressing specific environmental challenges through standard engineering approaches.

Obvious Combinations & Variations

Source Patent Element

Fibrous material layer with silicon nitride powder embedded at 1-10 wt% concentration

PTD Variation

Specialized face mask for high-security environments with secure fit mechanism

Obviousness Reasoning

Adding a secure fit mechanism is a predictable design modification to enhance mask performance in controlled environments, representing a routine engineering optimization

Source Patent Element

Spunbond nonwoven polypropylene fabric as base material

PTD Variation

Heat-resistant fibrous layer with integrated cooling mechanism

Obviousness Reasoning

Modifying material properties and adding thermal management is a standard engineering approach for extending protective equipment functionality in extreme temperature conditions

Source Patent Element

Silicon nitride embedded in fibrous layer for antipathogenic properties

PTD Variation

Modular mask system with washable base layer and interchangeable outer layers

Obviousness Reasoning

Creating a modular design with reusable components is a predictable solution for improving equipment versatility and reducing manufacturing costs

Source Patent Element

Antiviral face mask with silicon nitride composition

PTD Variation

Disaster relief distribution strategy with weather-resistant design

Obviousness Reasoning

Adapting protective equipment for specific environmental challenges represents a routine engineering problem-solving approach with predictable solution strategies

Source Patent Element

Basic face mask structure with embedded antimicrobial material

PTD Variation

Integration of environmental sensors or communication devices

Obviousness Reasoning

Adding sensing or communication capabilities to protective equipment is a known technique for enhancing functional utility in specialized contexts

35 U.S.C. § 103 Summary: Based on US Patent 11857001's disclosure of an antipathogenic face mask with silicon nitride-embedded fibrous materials, the present publication demonstrates that variations addressing specific environmental contexts would be obvious to a person having ordinary skill in protective equipment design. The disclosed modifications represent predictable engineering adaptations that do not rise to the level of nonobvious invention, thereby establishing prior art that would render similar claimed innovations obvious.

Original Patent Information

Patent Number	US 11,857,001
Title	Antipathogenic face mask
Assignee(s)	SINTX Technologies, Inc.