Advanced Antipathogenic Face Mask Technology

Publication ID: 24-11857001_0004_PTD
Published: October 27, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Advanced Antipathogenic Face Mask Technology,” Published Technical Disclosure No. 24-11857001_0004_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11857001_0004_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 patent disclosed antiviral, antibacterial, and antifungal compositions, systems, methods, and devices, including silicon nitride compositions, devices, and coatings for the inactivation and lysis of viruses, bacteria, and fungi. However, there remains a need for specialized face masks tailored to specific, demanding environments. The present invention addresses this limitation by providing adapted face masks for niche applications.

Novelty and Inventive Step

The new claims introduce novel adaptations of the original antipathogenic face mask, including specialized materials, coatings, and configurations tailored to specific niche environments. These adaptations provide a non-obvious solution to the limitations of the original patent, offering enhanced antipathogenic properties and functionality in demanding environments.

Alternative Embodiments and Variations

Alternative embodiments of the invention may include different materials, such as specialized fabrics or membranes, or alternative configurations, such as modular or adjustable designs. Variations may also include different types of antipathogenic agents or coatings, or the incorporation of additional features, such as sensors or communication devices.

Potential Commercial Applications and Market

The invention has significant commercial potential in various industries, including disaster relief, healthcare, security, and emergency response. The adapted face masks can be marketed to organizations and individuals operating in niche environments, providing a unique solution to their specific needs.

CPC Classifications

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

Field of Art

Personal Protective Equipment (PPE) and Advanced Materials Engineering, focusing on antipathogenic face mask design with specialized material compositions and environmental adaptations

Person of Ordinary Skill (PHOSITA) Profile

A materials engineer or PPE designer with expertise in textile engineering, nanotechnology, and protective equipment design, familiar with silicon nitride applications and environmental performance requirements

Obviousness Rationale

A PHOSITA would recognize that the source patent's silicon nitride face mask technology provides a foundational design that can be readily adapted to specific environmental conditions by applying standard engineering techniques. The core antipathogenic mechanism remains consistent across variations, with modifications representing predictable extensions of the original protective concept. The PTD's claims represent logical design iterations that would be apparent to a skilled practitioner seeking to optimize face mask performance for specialized contexts.

Obvious Combinations & Variations

Source Patent Element
Fibrous material layer with silicon nitride powder embedded at 1-10 wt%
PTD Variation
Adding water-resistant coating layer for disaster relief environments
Obviousness Reasoning
Applying protective coatings to enhance environmental resistance is a standard design approach in PPE, representing a predictable modification to improve functional performance
Source Patent Element
Silicon nitride powder in nonwoven polypropylene fabric
PTD Variation
Incorporating nanomaterials to enhance antipathogenic properties
Obviousness Reasoning
Augmenting existing antimicrobial compositions with advanced nanomaterials is a known technique for improving pathogen inactivation capabilities
Source Patent Element
Antiviral face mask with fibrous material layer
PTD Variation
Adding thermal insulation layer for high-temperature or extreme cold environments
Obviousness Reasoning
Modifying protective equipment for specific environmental conditions represents a standard engineering design choice with predictable implementation strategies
Source Patent Element
Face mask with silicon nitride embedded layer
PTD Variation
Integrating specialized air filtration layer for smoke-filled environments
Obviousness Reasoning
Adapting respiratory protection by adding filtration layers is a routine engineering solution for addressing specific environmental challenges
35 U.S.C. § 103 Summary: Based on US Patent 11857001's disclosure of an antipathogenic face mask with silicon nitride embedded fibrous layers, the present publication demonstrates that a person of ordinary skill in the art would find the claimed variations obvious through standard engineering design techniques. The disclosed adaptations represent predictable extensions of the source patent's core technological concept, utilizing known methods to modify protective equipment for specialized environmental contexts.

Original Patent Information

Patent NumberUS 11,857,001
TitleAntipathogenic face mask
Assignee(s)SINTX Technologies, Inc.