Poly(amino acid) Block Copolymer-Based Formulations for Agricultural and Veterinary Applications

Publication ID: 24-11857630_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Poly(amino acid) Block Copolymer-Based Formulations for Agricultural and Veterinary Applications,” Published Technical Disclosure No. 24-11857630_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857630_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. 11,857,630.

Summary of the Inventive Concept

This inventive concept leverages the core technology of SN-38 formulations with poly(amino acid) block copolymers to address unmet needs in agricultural and veterinary medicine, enabling novel applications and use cases.

Background and Problem Solved

The original patent disclosed formulations of SN-38 with poly(amino acid) copolymers for chemotherapy applications. However, the potential of this technology extends beyond human healthcare. In agricultural and veterinary medicine, there is a pressing need for effective treatments against plant diseases, parasitic infections, and fungal decay. Current solutions often have limited efficacy, high toxicity, or environmental concerns. The inventive concept addresses these limitations by adapting the core technology to create targeted, controlled-release formulations for these new applications.

Detailed Description of the Inventive Concept

The inventive concept comprises formulations of SN-38 with poly(amino acid) block copolymers tailored for agricultural and veterinary use cases. These formulations can be administered to plants, soil, or animals to treat diseases, improve crop yields, or prevent fungal decay. The poly(amino acid) block copolymer enables controlled release of SN-38, allowing for sustained activity against target pathogens while minimizing environmental impact. The formulations can be delivered through various means, including microfluidic devices, to ensure precise targeting and optimal efficacy.

Novelty and Inventive Step

The inventive concept's novelty lies in its application of the original patent's core technology to entirely new industries and use cases, leveraging the unique properties of poly(amino acid) block copolymers to address specific challenges in agricultural and veterinary medicine. The inventive step involves adapting the formulations and delivery mechanisms to accommodate the distinct requirements of these new applications.

Alternative Embodiments and Variations

Alternative embodiments may include varying the poly(amino acid) block copolymer composition, SN-38 concentration, or delivery mechanism to optimize performance in different agricultural or veterinary contexts. Variations could also involve combining the SN-38 formulations with other active ingredients or adjuvants to enhance efficacy or reduce side effects.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the agricultural and veterinary medicine markets, where there is a growing demand for innovative, effective, and environmentally friendly solutions. Target industries include crop protection, animal health, and wood preservation, with potential applications in organic farming, precision agriculture, and sustainable forestry.

CPC Classifications

SectionClassGroup
A A61 A61K47/34
A A61 A61K9/08
A A61 A61K9/19
A A61 A61K31/4375
A A61 A61K31/513
A A61 A61K31/519
A A61 A61K45/06
A A61 A61K47/26

Field of Art

Pharmaceutical and Agricultural Formulation Chemistry, focusing on drug delivery systems, polymer-based drug carriers, and controlled release technologies for medical and agricultural applications

Person of Ordinary Skill (PHOSITA) Profile

A researcher with advanced degrees in chemistry, polymer science, or pharmaceutical sciences, possessing expertise in drug formulation, polymer chemistry, and interdisciplinary applications of bioactive compounds

Obviousness Rationale

A PHOSITA would recognize the natural extensibility of the SN-38 poly(amino acid) block copolymer formulation from human pharmaceutical applications to agricultural and veterinary contexts. The core technological principles of controlled drug delivery and topoisomerase inhibition are directly transferable across biological systems. The poly(amino acid) block copolymer's versatile properties inherently suggest broader application potential beyond initial medical use.

Obvious Combinations & Variations

Source Patent Element
Controlled release formulation of SN-38 with poly(amino acid) block copolymer
PTD Variation
Applying the formulation to agricultural pest control and plant disease management
Obviousness Reasoning
Known technique of adapting pharmaceutical delivery mechanisms to agricultural contexts, with predictable results in pathogen inhibition
Source Patent Element
Specific weight percentages of SN-38 and copolymer in composition
PTD Variation
Adjusting formulation ratios for optimal performance in different biological systems
Obviousness Reasoning
Routine optimization through design choice, demonstrating a PHOSITA's ability to modify concentrations for specific applications
Source Patent Element
Topoisomerase I inhibition mechanism
PTD Variation
Extending inhibition strategy to plant and fungal pathogens
Obviousness Reasoning
Predictable extrapolation of molecular mechanism across diverse biological targets, representing a finite set of obvious variations
Source Patent Element
Cryoprotectant inclusion in original formulation
PTD Variation
Developing microfluidic delivery mechanisms for precise application
Obviousness Reasoning
Known technique of enhancing drug delivery through advanced technological approaches, representing an incremental innovation
Source Patent Element
Poly(amino acid) block copolymer as primary delivery mechanism
PTD Variation
Veterinary and wood preservation applications
Obviousness Reasoning
Obvious extension of polymer's inherent properties to additional biological protection contexts
35 U.S.C. § 103 Summary: Based on US Patent 11857630's disclosure of SN-38 formulations with poly(amino acid) block polymers, the present publication demonstrates that a Person Having Ordinary Skill In The Art would find the agricultural, veterinary, and alternative application variations obvious and predictable extensions of the original technological framework, thus rendering potential derivative claims anticipated and non-patentable under standard obviousness analysis.

Original Patent Information

Patent NumberUS 11,857,630
TitleFormulations of SN-38 with poly(amino acid) block polymers
Assignee(s)TYNDALL FORMULATION SERVICES, LLC