Advanced Disease-Resistant Maize Hybrid X18R501 Innovation

Publication ID: 24-11856906_0006_PTD
Published: October 26, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Disease-Resistant Maize Hybrid X18R501 Innovation,” Published Technical Disclosure No. 24-11856906_0006_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856906_0006_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. 11,856,906.

Background and Problem Solved

The original maize hybrid X18R501 has limitations in terms of disease susceptibility, inconsistent germination, and growth rates, resulting in reduced crop yields and lower agronomic quality. This invention addresses these limitations by introducing novel genetic modifications and selection methods to enhance disease resistance, uniformity, and overall crop performance.

Novelty and Inventive Step

The novelty of this invention lies in the specific combination of genetic modifications and selection methods that enhance disease resistance, agronomic quality, and crop yield in maize hybrid X18R501. The inventive step is the application of these modifications and methods to address the inherent limitations of the original patent, resulting in a more robust and high-performing maize hybrid.

Alternative Embodiments and Variations

Alternative embodiments of the invention may include the use of different genetic modifications, such as CRISPR-Cas9 gene editing, or the application of machine learning algorithms to optimize plant growth characteristics. Variations of the invention may also include the use of different maize hybrids as the starting material or the introduction of additional traits, such as herbicide tolerance or pest resistance.

Potential Commercial Applications and Market

The enhanced maize hybrid X18R501 has significant commercial potential in the agricultural industry, particularly in regions where disease resistance and agronomic quality are critical factors. The invention may be licensed to seed companies, agricultural biotechnology firms, or farmers, providing a competitive advantage in the market and contributing to increased crop yields and food security.

CPC Classifications

SectionClassGroup
A A01 A01H6/4684
A A01 A01H5/10

Field of Art

Plant Breeding and Genetic Engineering of Maize Hybrids, focusing on crop improvement techniques involving genetic modification, trait selection, and hybrid development

Person of Ordinary Skill (PHOSITA) Profile

A plant geneticist or plant breeder with advanced degree, expertise in maize genetics, familiarity with genetic modification techniques, understanding of quantitative trait selection, and knowledge of molecular breeding strategies

Obviousness Rationale

A PHOSITA would recognize that the disclosed variations represent predictable extensions of the source patent's foundational hybrid development approach. The technical modifications align with established plant breeding methodologies of enhancing disease resistance, yield, and agronomic performance through targeted genetic interventions. The PTD's claims represent logical incremental improvements using standard techniques known in maize breeding research.

Obvious Combinations & Variations

Source Patent Element
Hybrid maize variety X18R501 derived from crossing specific parent varieties
PTD Variation
Introduction of genetic modifications to enhance disease and insect resistance
Obviousness Reasoning
Predictable result of applying known genetic engineering techniques to improve crop performance, representing a standard approach in plant breeding
Source Patent Element
Backcrossing and genetic transformation techniques mentioned in source patent claims
PTD Variation
CRISPR-Cas9 gene editing for trait optimization
Obviousness Reasoning
Known advanced genetic modification technique that would be obvious to apply for trait enhancement, representing a finite set of predictable genetic intervention strategies
Source Patent Element
Focus on uniform plant characteristics and yield improvement
PTD Variation
Machine learning algorithms for optimizing plant growth characteristics
Obviousness Reasoning
Logical application of computational techniques to existing breeding goals, representing an obvious technological extension of traditional breeding methodologies
Source Patent Element
Hybrid development targeting agronomic performance
PTD Variation
Enhanced brittle stalk resistance through genetic selection
Obviousness Reasoning
Represents a standard design choice in crop improvement, utilizing known genetic selection techniques to address mechanical harvesting challenges
Source Patent Element
Transgene introduction for trait modification
PTD Variation
Drought tolerance gene introduction to improve shelf life
Obviousness Reasoning
Predictable genetic engineering approach using well-established techniques for environmental stress resistance
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856906 and the disclosed technical variations, a person of ordinary skill in the art would find the claimed innovations obvious and non-patentable. The proposed modifications represent standard plant breeding techniques applied to the existing maize hybrid, utilizing predictable genetic engineering strategies that would be readily apparent to a skilled practitioner in the field of crop genetic improvement.

Original Patent Information

Patent NumberUS 11,856,906
TitleMaize hybrid X18R501
Assignee(s)PIONEER HI-BRED INTERNATIONAL, INC.