Air Purification and Disinfection Systems for Public Spaces

Publication ID: 24-11857706_0007_PTD

Published: October 28, 2025

Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Air Purification and Disinfection Systems for Public Spaces,” Published Technical Disclosure No. 24-11857706_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857706_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. 11,857,706.

Summary of the Inventive Concept

The inventive concept leverages the core technology of the original patent to develop innovative air purification and disinfection systems for public spaces, enhancing indoor air quality and reducing airborne pathogens.

Background and Problem Solved

The original patent's display apparatus with integrated air treatment technology, initially designed for domestic appliances, has limitations in addressing the specific needs of public spaces. The new inventive concept addresses this gap by adapting the technology to tackle the unique challenges of air purification and disinfection in hospitals, schools, offices, and hotels.

Detailed Description of the Inventive Concept

The inventive concept comprises a display apparatus integrated with an air treatment apparatus, which incorporates a first radiation source device to treat air passing through a passage channel. The system can be configured to emit electromagnetic radiation to produce a photocatalytic reaction, reducing airborne pathogens and allergens. The display apparatus can be designed to provide real-time air quality monitoring and feedback.

Novelty and Inventive Step

The new claims introduce a novel application of the original patent's technology to public spaces, providing a non-obvious solution to the specific challenges of air purification and disinfection in these environments.

Alternative Embodiments and Variations

Alternative embodiments may include integrating the air treatment apparatus with other public space infrastructure, such as ventilation systems or lighting fixtures. Variations could include adapting the system for use in public transportation or outdoor spaces.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the healthcare, education, and hospitality industries, where maintaining high indoor air quality and reducing airborne pathogens is critical. The market for air purification and disinfection systems is growing rapidly, driven by increasing concerns about public health and wellbeing.

CPC Classifications

Section	Class	Group
A	A61	A61L9/205
A	A61	A61L2209/11
A	A61	A61L2209/12

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Air purification and treatment technologies, specifically focused on electromagnetic radiation-based air treatment systems for domestic and public spaces, requiring expertise in photocatalytic processes, radiation sources, and air flow management

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced engineering or applied physics background, possessing knowledge of photocatalysis, LED technologies, air treatment systems, and experience designing integrated environmental control solutions

Obviousness Rationale

A PHOSITA would recognize the straightforward extension of the source patent's air treatment apparatus technology to diverse public space environments by adapting the core radiation-based treatment mechanism. The fundamental photocatalytic process and radiation source configuration remain consistent across applications, with modifications primarily involving integration strategies and specific environmental targeting. The technical principles underlying air treatment are transferable across different spatial contexts with predictable and expected results.

Obvious Combinations & Variations

Source Patent Element

Air treatment apparatus with radiation source device for treating fluid passing through passage channel

PTD Variation

Integrating air treatment system into display apparatus for hospitals, schools, and public spaces

Obviousness Reasoning

Known technique of adapting air purification technologies to specific environmental needs, representing a predictable design variation with expected performance outcomes

Source Patent Element

Electromagnetic radiation emission for photocatalytic reaction

PTD Variation

Targeting specific wavelengths for pathogen and allergen reduction in different public spaces

Obviousness Reasoning

Routine optimization of radiation parameters for targeted environmental treatment, utilizing well-understood photocatalytic principles

Source Patent Element

Housing with air inlet and outlet openings

PTD Variation

Configuring air treatment apparatus for integration with ventilation systems in office buildings and transportation infrastructure

Obviousness Reasoning

Standard engineering approach of modular system design, applying known air flow management principles to alternative implementation contexts

Source Patent Element

LED-based radiation source device

PTD Variation

Implementing real-time air quality monitoring and feedback mechanisms within public space air treatment systems

Obviousness Reasoning

Predictable technological enhancement leveraging existing radiation source infrastructure to provide additional diagnostic functionality

35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. § 103, the variations disclosed herein would have been obvious to a person having ordinary skill in the art at the time of invention, as taught by US Patent 11857706, rendering obvious any subsequently claimed air treatment apparatus configurations that represent mere design variations of the fundamental photocatalytic air treatment methodology.

Original Patent Information

Patent Number	US 11,857,706
Title	Display apparatus for a domestic appliance
Assignee(s)	EMZ-HANAUER GMBH & CO. KGAA