Precision Fertilizer Dispenser for Sustainable Agriculture

Publication ID: 24-11857504_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Precision Fertilizer Dispenser for Sustainable Agriculture,” Published Technical Disclosure No. 24-11857504_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857504_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. 11,857,504.

Summary of the Inventive Concept

This inventive concept leverages the core technology of a patient-controlled oral liquid medicine dispenser and deactivation system to develop a precision fertilizer dispenser for sustainable agriculture, enabling efficient and environmentally friendly fertilizer application.

Background and Problem Solved

The original patent addressed the limitations of invasive patient-controlled liquid medication administration, but its core technology can be repurposed to tackle the pressing issue of fertilizer waste and environmental contamination in agriculture. The inventive concept solves the problem of inefficient fertilizer application, reducing waste, and promoting sustainable farming practices.

Detailed Description of the Inventive Concept

The precision fertilizer dispenser consists of a modified dosing container, adapted for fertilizer storage, and a suction apparatus, integrated with a GPS system, to dispense precise amounts of fertilizer according to soil conditions and crop requirements. The system minimizes fertilizer waste, prevents water contamination, and optimizes crop yields. The sealed waste receptacle, now configured for fertilizer containment, ensures safe disposal and prevents diversion.

Novelty and Inventive Step

The new claims introduce a non-obvious application of the original patent's technology to the agricultural industry, providing a novel solution for sustainable fertilizer management. The inventive concept's integration of GPS technology and soil condition monitoring enables a previously unknown level of precision and control in fertilizer application.

Alternative Embodiments and Variations

Alternative embodiments could include modifications for use in different agricultural settings, such as greenhouses or vertical farming, or integration with other precision agriculture tools, like drones or autonomous tractors. Variations could also involve adapting the system for use with different types of fertilizers or crop-specific requirements.

Potential Commercial Applications and Market

The precision fertilizer dispenser has significant commercial potential in the agricultural industry, particularly among farmers and agricultural companies seeking to reduce their environmental footprint and optimize crop yields. The target market includes sustainable agriculture initiatives, precision farming companies, and government agencies promoting environmentally friendly farming practices.

CPC Classifications

SectionClassGroup
A A61 A61J7/0053
A A61 A61J1/22
G G16 G16H20/13
A A61 A61J2200/30
A A61 A61J2200/70

Field of Art

Medical device technology and precision dispensing systems, with expertise in controlled liquid delivery mechanisms, dosage management, and system integration across medical and agricultural domains

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced engineering or biomedical degrees, understanding fluid dynamics, precision dispensing technologies, and cross-domain system adaptation techniques

Obviousness Rationale

A skilled practitioner would recognize the fundamental design principles of the patient-controlled liquid medicine dispenser are readily adaptable to precision agricultural applications. The core technological elements - controlled volumetric dispensing, sealed waste management, and suction-based delivery - translate directly to fertilizer distribution systems. The PTD's integration of GPS and soil monitoring represents a predictable technological extension of the source patent's core mechanical and control principles.

Obvious Combinations & Variations

Source Patent Element
Defined volumetric capacity dosing container with spillway mechanism
PTD Variation
Adapting dosing container for precise fertilizer volume control
Obviousness Reasoning
A PHOSITA would recognize that fluid delivery principles are transferable between medical and agricultural domains, with predictable modifications to accommodate different liquid properties
Source Patent Element
Sealed waste receptacle with neutralizing agent
PTD Variation
Sealed fertilizer containment system preventing environmental contamination
Obviousness Reasoning
The containment and prevention strategies are directly applicable across liquid management contexts, representing a known technique for controlling potentially hazardous substances
Source Patent Element
Suction apparatus for controlled liquid delivery
PTD Variation
GPS-integrated suction system for precision fertilizer application
Obviousness Reasoning
Integrating location-based control with existing mechanical delivery mechanisms represents a predictable technological enhancement using standard sensor and control technologies
Source Patent Element
Patient-controlled liquid medicine delivery system
PTD Variation
Crop-responsive fertilizer application system with monitoring capabilities
Obviousness Reasoning
Translating patient-centric control paradigms to crop management represents a logical extension of precision delivery and feedback control principles
Source Patent Element
Deactivation system preventing unauthorized liquid access
PTD Variation
Agricultural system preventing unauthorized fertilizer diversion or misuse
Obviousness Reasoning
Security and controlled access principles are universally applicable across systems managing valuable or potentially dangerous liquid resources
35 U.S.C. § 103 Summary: Based on US Patent 11857504's comprehensive liquid delivery system, the present publication demonstrates that a person having ordinary skill in the art would find the agricultural fertilizer dispensing variations obvious and predictable extensions of the source patent's core technological principles, thereby establishing robust prior art against potential future patent claims in precision agricultural dispensing technologies.

Original Patent Information

Patent NumberUS 11,857,504
TitlePatient-controlled liquid oral medicine dispenser and deactivation system
Assignee(s)Yale University