Melphalan-based Compositions for Novel Applications

Publication ID: 24-11857677_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Melphalan-based Compositions for Novel Applications,” Published Technical Disclosure No. 24-11857677_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857677_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. 11,857,677.

Summary of the Inventive Concept

The inventive concept disclosed herein leverages the core technology of stable ready-to-use injectable formulations of melphalan to address unmet needs in diverse industries, including agriculture, timber preservation, medical devices, industrial wastewater treatment, and cosmetics.

Background and Problem Solved

The original patent addressed the challenge of stabilizing melphalan in liquid pharmaceutical formulations. However, its scope was limited to pharmaceutical applications. The new inventive concept expands the technology's reach to tackle distinct problems in various industries, such as fungal growth in agricultural soil, timber decay, microbial growth on medical devices, fungal contamination in industrial wastewater, and microbial spoilage in cosmetics.

Detailed Description of the Inventive Concept

The inventive concept involves the development of melphalan-based compositions tailored to specific industries. For instance, a melphalan-based composition for agricultural soil treatment would be formulated to effectively control fungal growth while ensuring soil and environmental safety. Similarly, a melphalan-based coating for medical devices would inhibit microbial growth on the device's surface. The composition for timber preservation would prevent fungal decay, while the industrial wastewater treatment composition would reduce fungal growth. Lastly, the melphalan-based preservative composition for cosmetics would inhibit microbial growth, thereby enhancing product shelf life.

Novelty and Inventive Step

The new inventive concept introduces novel applications and use cases for melphalan-based compositions, which were not envisioned in the original patent. The inventive step lies in the adaptation of the core technology to address distinct problems in diverse industries, thereby providing unexpected solutions and benefits.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include varying the concentration of melphalan, adjusting the composition's pH, or incorporating additional components to enhance efficacy or stability. Variations could also involve different methods of application, such as injection, spraying, or coating, depending on the specific industry and use case.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential across multiple industries. The agricultural sector could benefit from melphalan-based soil treatments, while the timber industry could reduce losses due to fungal decay. Medical device manufacturers could integrate melphalan-based coatings to enhance device safety, and industrial wastewater treatment plants could reduce fungal growth. Cosmetics manufacturers could extend product shelf life using melphalan-based preservatives. The market potential is substantial, with opportunities for partnerships, licensing, and new product development.

CPC Classifications

SectionClassGroup
A A61 A61K9/08
A A61 A61K9/0019
A A61 A61K31/198
A A61 A61K47/10
A A61 A61K47/183
A A61 A61K47/32

Field of Art

Pharmaceutical formulations, chemical engineering, and biotechnology with a focus on stable injectable compositions and antimicrobial/antifungal applications

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced degrees in pharmaceutical sciences, chemistry, or chemical engineering, possessing expertise in drug formulation, stability testing, and application of chemical compounds across multiple industrial domains

Obviousness Rationale

A PHOSITA would recognize that the core technical achievement of the source patent - a stable melphalan formulation with broad solvent compatibility - naturally suggests potential cross-industry applications. The fundamental chemical properties of melphalan as an alkylating agent inherently imply antimicrobial and antifungal capabilities that could be systematically explored across different technical domains. The PTD represents a predictable extension of the source patent's core technological insights by applying known chemical behavior to solve related problems in diverse industrial contexts.

Obvious Combinations & Variations

Source Patent Element
Stable liquid parenteral formulation of melphalan with specific solvent compositions
PTD Variation
Agricultural soil treatment composition using melphalan to control fungal growth
Obviousness Reasoning
A PHOSITA would recognize melphalan's inherent antifungal properties and understand that adjusting concentration and application method represents a routine engineering design choice
Source Patent Element
Pharmaceutical formulation with controlled melphalan concentration
PTD Variation
Timber preservation method using melphalan-based injection to prevent fungal decay
Obviousness Reasoning
Applying known antimicrobial chemical properties to wood preservation represents a predictable solution using standard chemical engineering techniques
Source Patent Element
Injectable liquid formulation with stability characteristics
PTD Variation
Medical device coating composition to inhibit microbial growth
Obviousness Reasoning
Extending antimicrobial properties to surface coating represents a straightforward technical adaptation using known chemical engineering principles
Source Patent Element
Pharmaceutically acceptable solvents and concentration ranges
PTD Variation
Industrial wastewater treatment composition for reducing fungal contamination
Obviousness Reasoning
Leveraging melphalan's established antifungal mechanism in a new environmental treatment context represents an obvious technological transfer
Source Patent Element
Stable liquid formulation with controlled chemical properties
PTD Variation
Cosmetic preservative composition inhibiting microbial growth
Obviousness Reasoning
Applying known antimicrobial chemical properties to cosmetic preservation represents a predictable solution within standard product development practices
35 U.S.C. § 103 Summary: Based on US Patent 11857677's disclosure of stable melphalan formulations, the present publication demonstrates that a person having ordinary skill in the art would find the disclosed cross-industry applications obvious and predictable, thereby rendering potential claims to such variations unpatentable under 35 U.S.C. ยง 103 due to the fundamental chemical properties and known adaptability of the underlying pharmaceutical composition.

Original Patent Information

Patent NumberUS 11,857,677
TitleReady to use injectable formulations of melphalan and processes for preparation thereof
Assignee(s)RK PHARMA INC.