Advanced Drought-Resistant Maize Hybrid X00R828 Innovation

Publication ID: 24-11856908_0001_PTD

Published: October 27, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Drought-Resistant Maize Hybrid X00R828 Innovation,” Published Technical Disclosure No. 24-11856908_0001_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11856908_0001_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. 11,856,908.

Background and Problem Solved

The original maize hybrid X00R828, while exhibiting desirable traits, has inherent limitations in terms of yield, disease resistance, and drought tolerance. The present invention addresses these limitations by introducing novel genetic combinations, disease resistance genes, and drought tolerance mechanisms to create a more resilient and high-performing maize hybrid.

Novelty and Inventive Step

The new claims introduce novel genetic combinations, disease resistance genes, and drought tolerance mechanisms not present in the original patent, thereby providing a non-obvious and innovative solution to the limitations of maize hybrid X00R828.

Alternative Embodiments and Variations

Alternative embodiments may include variations in genetic marker selection algorithms, trait stacking strategies, and engineering approaches for drought tolerance. Additionally, the automated breeding system could be adapted for use with other maize hybrids or crop species.

Potential Commercial Applications and Market

The enhanced maize hybrid X00R828 has significant commercial potential in the agricultural industry, particularly in regions prone to drought and disease outbreaks. The improved yield, disease resistance, and drought tolerance traits can increase crop productivity, reduce losses, and enhance farmer profitability, making it an attractive solution for seed companies, farmers, and agricultural suppliers.

CPC Classifications

Section	Class	Group
A	A01	A01H6/4684
A	A01	A01H5/08
A	A01	A01H5/10

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Plant Breeding and Genetic Engineering of Maize Hybrids, focusing on crop improvement techniques involving genetic marker selection, trait stacking, and environmental stress tolerance

Person of Ordinary Skill (PHOSITA) Profile

A plant geneticist or crop scientist with advanced degree, expertise in molecular breeding techniques, genetic marker analysis, and familiarity with maize genomics and breeding strategies

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable extensions of known maize breeding techniques, utilizing standard genetic engineering approaches to enhance the base X00R828 hybrid. The disclosed methods of trait selection, disease resistance introduction, and drought tolerance engineering are consistent with established practices in agricultural biotechnology. The systematic approach to hybrid improvement follows well-established protocols in crop science research.

Obvious Combinations & Variations

Source Patent Element

Hybrid maize variety X00R828 created by crossing specific inbred varieties PH4DDB and PH48J7

PTD Variation

Genetic marker selection algorithm for identifying superior trait combinations within the hybrid's genetic background

Obviousness Reasoning

Genetic marker-assisted selection is a standard technique in plant breeding, representing a predictable optimization of the existing hybrid development process

Source Patent Element

Patent's focus on combining desirable traits in maize hybrids

PTD Variation

Introducing novel disease resistance genes from wild maize relatives

Obviousness Reasoning

Introgression of resistance genes from wild relatives is a well-known and routine strategy in crop improvement, representing a finite set of predictable genetic enhancement approaches

Source Patent Element

Claim for potential transgene introduction into parent varieties

PTD Variation

Engineered drought-responsive transcription factor and root architecture modification

Obviousness Reasoning

Genetic modifications to improve stress tolerance are standard techniques in crop biotechnology, with a limited number of known approaches for enhancing plant performance

Source Patent Element

Hybrid development method involving specific crossing strategies

PTD Variation

Machine learning-based trait prediction and automated breeding system

Obviousness Reasoning

Application of computational techniques to breeding is a predictable technological progression, representing an obvious extension of existing breeding methodologies

Source Patent Element

Focus on improving crop performance and agronomic qualities

PTD Variation

Seed treatment composition with beneficial microorganisms and growth-promoting substances

Obviousness Reasoning

Seed treatments and microbiome enhancement are well-established techniques for improving crop establishment and performance

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856908 for maize hybrid X00R828, the present publication demonstrates that the claimed variations represent obvious extensions of known plant breeding techniques, employing standard genetic engineering approaches that would be readily apparent to a person having ordinary skill in agricultural biotechnology. The disclosed methods of genetic marker selection, trait enhancement, and breeding optimization constitute prior art that would render obvious any subsequent claims to similar maize hybrid improvement strategies.

Original Patent Information

Patent Number	US 11,856,908
Title	Maize hybrid X00R828
Assignee(s)	PIONEER HI-BRED INTERNATIONAL, INC.