Novel Applications of Oligo(Carbamoylated Guanidine) in Biofilm Prevention and Treatment

Publication ID: 24-11857521_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Novel Applications of Oligo(Carbamoylated Guanidine) in Biofilm Prevention and Treatment,” Published Technical Disclosure No. 24-11857521_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857521_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. 11,857,521.

Summary of the Inventive Concept

This inventive concept leverages the anti-mycobacterial properties of oligo(carbamoylated guanidine) (OCG) to develop novel solutions for preventing and treating biofilm-related infections in various industries, including medical devices, wound care, agriculture, and marine antifouling coatings.

Background and Problem Solved

The original patent disclosed OCGs as potent anti-mycobacterial agents, but their potential in other fields remained unexplored. Biofilm-related infections pose significant challenges in various industries, resulting in device failure, patient morbidity, and crop loss. Current treatments often involve harsh chemicals or antibiotics, which can lead to resistance and environmental concerns. This inventive concept addresses these limitations by adapting OCG technology to combat biofilm-related infections in new applications.

Detailed Description of the Inventive Concept

The inventive concept involves the use of OCGs as a key component in various formulations and coatings to prevent biofilm formation and eradicate existing biofilms. In medical devices, OCG-based coatings can reduce the risk of catheter-associated urinary tract infections. In wound care, OCG-infused dressings can promote wound healing by inhibiting bacterial growth and biofilm formation. In agriculture, OCG-based compositions can be applied to crops to prevent disease progression. In marine antifouling coatings, OCGs can prevent biofouling organisms from adhering to underwater surfaces. The OCGs can be tailored to specific applications by modifying their structure, composition, and delivery methods.

Novelty and Inventive Step

The new claims introduce a novel application of OCG technology, expanding its scope beyond anti-mycobacterial treatment to address the unmet needs in biofilm prevention and treatment. The inventive step lies in the recognition of OCGs' potential in these new fields and the development of tailored formulations and coatings to harness their biofilm-inhibiting properties.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could involve the use of OCGs in combination with other antimicrobial agents, the development of OCG-based nanoparticles for targeted delivery, or the incorporation of OCGs into implantable devices. Variations of the coatings and formulations could be designed for specific industries or applications, such as orthopedic implants or dental materials.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including medical devices, wound care, agriculture, and marine coatings. The market for biofilm prevention and treatment solutions is substantial, with an estimated value of over $10 billion. By adapting OCG technology to these new applications, this inventive concept can provide a competitive edge in these markets and address pressing needs in public health and environmental sustainability.

CPC Classifications

SectionClassGroup
A A61 A61K31/17
A A61 A61K31/133
A A61 A61K31/277
A A61 A61K31/4409
A A61 A61K31/47
A A61 A61K31/496
A A61 A61K31/498
A A61 A61K31/4965
A A61 A61K31/5377
A A61 A61P31/06
C C07 C07C279/12
C C07 C07D295/215
C C08 C08G65/00
C C08 C08G71/02
C C07 C07C2601/16

Field of Art

Pharmaceutical chemistry and antimicrobial drug development, with expertise in molecular design, drug delivery systems, and bioactive compound applications across medical, agricultural, and materials engineering domains

Person of Ordinary Skill (PHOSITA) Profile

A researcher with advanced degrees in chemistry or pharmaceutical sciences, familiar with molecular modification techniques, drug repurposing strategies, and interdisciplinary applications of antimicrobial compounds

Obviousness Rationale

A person of ordinary skill would recognize the inherent biofilm-inhibiting properties of oligo(carbamoylated guanidine) based on its demonstrated anti-mycobacterial characteristics. The extension of OCG technology from tuberculosis treatment to broader biofilm prevention represents a predictable application of known antimicrobial principles. The structural flexibility of OCGs inherently suggests adaptability across multiple technological domains, making the PTD's proposed variations a logical progression of the source patent's foundational research.

Obvious Combinations & Variations

Source Patent Element
Oligo(carbamoylated guanidine) with variable structural configurations
PTD Variation
Medical device coating to prevent catheter-associated infections
Obviousness Reasoning
Known antimicrobial compounds are routinely adapted for surface modification to prevent bacterial colonization, representing a predictable design choice with expected outcomes
Source Patent Element
Chemical structure allowing molecular modifications
PTD Variation
Agricultural crop disease prevention formulation
Obviousness Reasoning
Extending antimicrobial compounds to agricultural applications is a standard approach in addressing biological contamination across different environmental contexts
Source Patent Element
Demonstrated ability to interact with biological systems
PTD Variation
Marine antifouling coating preventing organism adhesion
Obviousness Reasoning
Applying antimicrobial compounds to prevent biological attachment represents a well-established technique in materials engineering with predictable mechanism of action
Source Patent Element
Molecular design allowing structural variations
PTD Variation
Wound dressing material incorporating OCG for bacterial inhibition
Obviousness Reasoning
Integrating antimicrobial compounds into wound care materials is a known strategy for enhancing healing and preventing infection
Source Patent Element
Chemical structure with potential for targeted modifications
PTD Variation
Nanoparticle-based targeted delivery of OCG compounds
Obviousness Reasoning
Advanced drug delivery techniques represent a natural progression in pharmaceutical development, particularly for compounds with demonstrated biological activity
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in this Published Technical Disclosure would have been obvious to a person having ordinary skill in the art at the time of invention, as they represent predictable extensions of the foundational research disclosed in US Patent 11857521, demonstrating no inventive step beyond the ordinary capabilities of skilled practitioners in pharmaceutical and materials chemistry.

Original Patent Information

Patent NumberUS 11,857,521
TitleAnti-mycobacterial drugs
Assignee(s)The Florida International University Board of Trustees