Polyethylene Glycol-Linker Conjugates for Environmental Remediation and Sustainability

Publication ID: 24-11857635_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Polyethylene Glycol-Linker Conjugates for Environmental Remediation and Sustainability,” Published Technical Disclosure No. 24-11857635_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857635_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. 11,857,635.

Summary of the Inventive Concept

The present inventive concept discloses novel applications of polyethylene glycol-linker conjugates in environmental remediation, sustainability, and biocatalysis, expanding the original patent's pharmaceutical focus to tackle pressing ecological issues.

Background and Problem Solved

The original patent primarily addressed pharmaceutical applications of polyethylene glycol-linker conjugates. However, environmental pollution, climate change, and inefficient biocatalytic processes pose significant threats to global sustainability. The present inventive concept addresses these limitations by applying the core technology to new, high-impact fields.

Detailed Description of the Inventive Concept

The inventive concept involves the use of polyethylene glycol-linker conjugates in various environmental and sustainability-related applications. Specifically, the conjugates can be designed to treat environmental pollutants, monitor water quality, control pests in agricultural settings, reduce carbon emissions, and enhance biocatalytic processes. The conjugates' controlled release and targeted delivery properties enable efficient and effective solutions to these pressing issues.

Novelty and Inventive Step

The novelty of the present inventive concept lies in the unexpected application of polyethylene glycol-linker conjugates to environmental and sustainability-related fields, departing from the original patent's pharmaceutical focus. The inventive step is the recognition of the conjugates' potential to address critical ecological challenges and the development of novel conjugate designs tailored to these applications.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include the use of different linker compounds, polyethylene glycol chain lengths, or drug molecules tailored to specific environmental or sustainability applications. Variations may also involve the development of novel conjugate architectures or the incorporation of additional functionalities to enhance the conjugates' performance.

Potential Commercial Applications and Market

The present inventive concept has significant commercial potential in the environmental remediation, sustainability, and biocatalysis markets. The conjugates' ability to address pressing ecological issues and improve biocatalytic processes can lead to the development of new products and services, creating opportunities for companies and industries seeking to contribute to a more sustainable future.

CPC Classifications

SectionClassGroup
A A61 A61K47/60
A A61 A61K31/704
A A61 A61P35/00

Field of Art

Pharmaceutical and chemical engineering, specifically polymer-based drug delivery systems and conjugate technologies, with expertise in polyethylene glycol (PEG) linker design and functional modifications

Person of Ordinary Skill (PHOSITA) Profile

A researcher or engineer with advanced degrees in chemistry, chemical engineering, or pharmaceutical sciences, possessing knowledge of polymer conjugation techniques, drug delivery mechanisms, and interdisciplinary applications of molecular engineering

Obviousness Rationale

A PHOSITA would recognize that the fundamental PEG-linker-drug conjugate structure disclosed in the source patent provides a versatile platform for broad technological applications beyond pharmaceutical uses. The modular nature of the conjugate design inherently suggests adaptability to different functional domains, making the environmental and sustainability applications a predictable extension of the original technological concept. The core technical innovation of controlled release and targeted delivery is directly transferable across different application contexts.

Obvious Combinations & Variations

Source Patent Element
Polyethylene glycol-linker-drug conjugate with controllable structural modifications
PTD Variation
Adapting the conjugate for environmental pollutant treatment using bioremediation agents
Obviousness Reasoning
Known technique of modifying drug delivery systems for alternative functional applications, with predictable results based on established polymer conjugation principles
Source Patent Element
Ability to incorporate different drug molecules into PEG-linker structure
PTD Variation
Replacing pharmaceutical drugs with enzymes for carbon sequestration and biocatalysis
Obviousness Reasoning
Predictable substitution of molecular payload while maintaining core conjugate architecture, representing a routine design choice for a skilled practitioner
Source Patent Element
Controlled release mechanism inherent in PEG-linker conjugate design
PTD Variation
Applying controlled release properties to agricultural pesticide delivery in soil
Obviousness Reasoning
Extending known drug delivery principles to agrochemical applications through straightforward technological translation
Source Patent Element
Versatile linking group selection in original patent claims
PTD Variation
Developing novel conjugate architectures for water quality monitoring sensors
Obviousness Reasoning
Utilizing established molecular engineering techniques to adapt conjugate structure for sensing applications, representing an obvious technological adaptation
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857635, a person having ordinary skill in the art would find the environmental and sustainability applications of PEG-linker-drug conjugates to be obvious variations of the original pharmaceutical technology. The modular conjugate design inherently suggests broad applicability across technological domains, rendering subsequent innovations in environmental remediation and biocatalysis predictable extensions of the foundational molecular engineering principles.

Original Patent Information

Patent NumberUS 11,857,635
TitleLinker compound, polyethylene glycol-linker conjugate and derivative thereof and polyethylene glycol-linker-drug conjugate
Assignee(s)JenKem Technology Co., Ltd. (Tianjin)