Filter Assembly for Diverse Applications

Publication ID: 24-11857719_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Filter Assembly for Diverse Applications,” Published Technical Disclosure No. 24-11857719_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857719_0002_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. 11,857,719.

Summary of the Inventive Concept

This inventive concept extends the core technology of a filter assembly to various industries beyond medical devices, offering versatile solutions for water purification, humidity control, wastewater treatment, clean air provision, and food preservation.

Background and Problem Solved

The original patent, focused on filters for medical devices, has limitations in addressing diverse applications. This inventive concept tackles the problem of adapting the filter assembly technology to entirely new industries, fields, and problems, thereby expanding its potential impact.

Detailed Description of the Inventive Concept

The filter assembly is designed to be versatile and adaptable to different applications. In an agricultural setting, it can be used to purify water for irrigation. In a greenhouse, it can control humidity by filtering and humidifying air. For wastewater treatment, it can remove contaminants from wastewater. In residential settings, it can provide clean air by removing pollutants from indoor air. Additionally, it can be used to preserve food by removing ethylene gas from storage containers.

Novelty and Inventive Step

The novelty lies in the application of the filter assembly technology to diverse industries, which was not originally considered. The inventive step is the adaptation of the filter assembly to address specific problems in these new fields, such as water purification, humidity control, and food preservation.

Alternative Embodiments and Variations

Alternative embodiments may include variations in filter medium materials, housing designs, and connection configurations to accommodate different industries and applications. For instance, the filter assembly could be integrated into existing systems, such as ventilation systems or irrigation networks, or designed as standalone devices.

Potential Commercial Applications and Market

This inventive concept has significant commercial potential in various industries, including agriculture, horticulture, wastewater treatment, residential construction, and food processing. The market for such filter assemblies is vast, with potential applications in emerging markets and developing countries.

CPC Classifications

SectionClassGroup
A A61 A61M13/003
A A61 A61M16/0875
A A61 A61M16/106
A A61 A61M16/1095
A A61 A61M16/161
A A61 A61M2202/0225
A A61 A61M2205/3327
A A61 A61M2205/3331
A A61 A61M2205/3334
A A61 A61M2205/3368
A A61 A61M2205/3569
A A61 A61M2205/3653
A A61 A61M2205/7527
A A61 A61M2205/7536

Field of Art

Medical device filtration systems, specifically insufflation and gas filtration technologies with expertise in filter design, medical gas handling, and interdisciplinary fluid management systems

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced engineering or biomedical background, possessing knowledge of filtration principles, medical device design, fluid dynamics, and cross-industry adaptation of filtration technologies

Obviousness Rationale

A PHOSITA would recognize that the fundamental filter assembly design from the source patent provides a versatile technological platform readily adaptable to multiple industrial applications. The core technical elements of filtering, housing configuration, and fluid conduit management are universally applicable across different domains. The disclosed variations represent predictable extensions of existing filtration technology by applying known principles to solve analogous problems in different technical contexts.

Obvious Combinations & Variations

Source Patent Element
Filter medium operative to filter medical gases with a housing comprising inlet and outlet
PTD Variation
Adapting filter assembly for agricultural water purification by modifying filter medium composition and water conduit connections
Obviousness Reasoning
Predictable modification of existing filter technology using known material science techniques to address similar filtration challenges in a different domain
Source Patent Element
Patient conduit configured to deliver medical gases through filter assembly
PTD Variation
Integrating filter assembly into greenhouse ventilation systems for humidity control
Obviousness Reasoning
Routine engineering design choice to repurpose fluid transport mechanisms across different technical applications with minimal substantive modification
Source Patent Element
Housing design allowing removable and permanent attachment configurations
PTD Variation
Developing modular filter assemblies for residential air purification and food preservation systems
Obviousness Reasoning
Obvious implementation of existing connection strategies to solve analogous technical problems using well-understood engineering principles
Source Patent Element
Filter assembly positioned between humidification apparatus and patient
PTD Variation
Repositioning filter assembly in wastewater treatment processes to remove contaminants
Obviousness Reasoning
Standard engineering approach of translating filtration placement principles across different fluid management contexts
35 U.S.C. § 103 Summary: Based on US Patent 11857719's fundamental filter assembly disclosure, the present publication demonstrates that a person of ordinary skill in the art would find the disclosed variations obvious through routine engineering adaptation. The technical modifications represent predictable extensions of existing filtration technology, applying known principles to solve analogous problems across diverse industrial domains without requiring inventive insight beyond ordinary professional capabilities.

Original Patent Information

Patent NumberUS 11,857,719
TitleFilter assembly
Assignee(s)Fisher & Paykel Healthcare Limited