Urushiol Remediation and Protection Systems

Publication ID: 24-11857666_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Urushiol Remediation and Protection Systems,” Published Technical Disclosure No. 24-11857666_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857666_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. 11,857,666.

Summary of the Inventive Concept

This inventive concept leverages the core technology of the original patent to develop novel solutions for removing urushiol from contaminated soil, decontaminating agricultural equipment, detecting urushiol on surfaces, creating urushiol-resistant plant varieties, and protecting workers from urushiol exposure during forestry operations.

Background and Problem Solved

The original patent focused on detergent compositions for washing urushiol and methods of treating urushiol-induced contact dermatitis. However, urushiol contamination extends beyond human skin to environmental and industrial contexts. This new inventive concept addresses the unmet need for effective solutions in these areas, expanding the scope of urushiol remediation and protection.

Detailed Description of the Inventive Concept

The inventive concept encompasses five distinct applications: a system for removing urushiol from contaminated soil, comprising a urushiol-treating composition and a soil-aeration mechanism; a method for decontaminating urushiol-infested agricultural equipment; a device for detecting urushiol on surfaces; a process for creating urushiol-resistant plant varieties; and a system for protecting workers from urushiol exposure during forestry operations. Each application leverages the original patent's core technology, adapting it to address the unique challenges of these new contexts.

Novelty and Inventive Step

The new claims introduce novel applications and use cases for the original patent's core technology, expanding its scope beyond human skin to environmental and industrial contexts. The inventive step lies in recognizing the potential for urushiol remediation and protection in these areas and adapting the technology to address specific challenges and needs.

Alternative Embodiments and Variations

Alternative embodiments may include variations on the soil-aeration mechanism, such as using microorganisms to break down urushiol or integrating the system with existing agricultural equipment. The device for detecting urushiol on surfaces could be miniaturized for handheld use or integrated into larger monitoring systems. The process for creating urushiol-resistant plant varieties could involve genetic engineering or traditional breeding techniques.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in industries such as environmental remediation, agriculture, forestry, and occupational health. The market for urushiol remediation and protection solutions is substantial, with potential customers including government agencies, private companies, and individual farmers and foresters.

CPC Classifications

SectionClassGroup
A A61 A61K8/8147
A A61 A61K8/342
A A61 A61K8/345
A A61 A61K8/42
A A61 A61K8/44
A A61 A61K8/60
A A61 A61K8/86
A A61 A61K8/894
A A61 A61Q19/10
A A61 A61K2800/30
A A61 A61K2800/41
A A61 A61K2800/596

Field of Art

Chemical engineering and surface treatment technologies, specifically focused on urushiol removal and mitigation strategies, with expertise in surfactant chemistry, environmental remediation, and protective compositions

Person of Ordinary Skill (PHOSITA) Profile

A chemical engineer or materials scientist with advanced degree, specialized knowledge in surfactant formulations, surface chemistry, and practical experience in developing cleaning and decontamination technologies

Obviousness Rationale

A PHOSITA would recognize that the source patent's urushiol cleaning composition provides a foundational technology that can be readily adapted to broader environmental and industrial contexts. The core principles of urushiol removal using specific surfactant combinations are directly transferable to soil, equipment, and protective applications. The variations represent predictable extensions of the original patent's core technological insights, utilizing known techniques of composition modification and application adaptation.

Obvious Combinations & Variations

Source Patent Element
Non-buffered detergent composition with specific C12 surfactants for urushiol removal from human skin
PTD Variation
Applying the same surfactant composition to decontaminate agricultural equipment and soil surfaces
Obviousness Reasoning
A PHOSITA would recognize that surfactant effectiveness is not limited to human skin and could be predictably applied to other contaminated surfaces using known chemical transfer techniques
Source Patent Element
Specific non-ionic polyethylene glycol ether surfactant mixture
PTD Variation
Developing a urushiol detection sensor using the surfactant's chemical interaction properties
Obviousness Reasoning
Leveraging known surfactant chemical sensitivity is a standard design approach for creating sensor technologies with predictable results
Source Patent Element
Composition containing high molecular weight polyacrylic acid polymer
PTD Variation
Integrating polymer technology into soil remediation mechanisms for enhanced urushiol breakdown
Obviousness Reasoning
Applying polymer stabilization techniques to environmental remediation is a standard engineering approach with predictable scientific outcomes
Source Patent Element
Urushiol removal mechanism focused on chemical interaction
PTD Variation
Creating protective systems for workers using similar chemical interaction principles
Obviousness Reasoning
Extending protective chemical technologies to personal safety applications represents a logical and predictable technological progression
Source Patent Element
Specific surfactant composition targeting urushiol molecules
PTD Variation
Developing plant breeding strategies to reduce urushiol production
Obviousness Reasoning
Applying chemical understanding to genetic modification represents a standard approach in biotechnology with predictable scientific methodology
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857666, a person having ordinary skill in the art would find the variations disclosed in this publication to be obvious extensions of the original urushiol removal technology. The systematic application of the source patent's core surfactant composition and chemical interaction principles to diverse contexts represents a predictable technological progression that would be readily conceived by a skilled practitioner without requiring inventive insight.

Original Patent Information

Patent NumberUS 11,857,666
TitleDetergent compositions for washing urushiol and methods of treating urushiol induced contact dermatitis
Assignee(s)The William M. Yarbrough Foundation