Plants and seeds of hybrid corn variety CH010528

Judd J. Maxwell, Sycamore, IL (US); Laron L. Peters, Gothenburg, NE (US); Mark J. Brinkman, Omaha, NE (US); Paul T. Nelson, St. Charles, MO (US); Scott C. Stelpflug, Ankeny, IA (US)

USPTO: us-12628768 · published 2026-05-19 · patents · A01H 6/4684· A01H 1/00· A01H 5/10

Plants and seeds of hybrid corn variety CH010528

Mark J. Brinkman, Omaha, NE (US) , Judd J. Maxwell, Sycamore, IL (US) , Paul T. Nelson, St. Charles, MO (US) , Laron L. Peters, Gothenburg, NE (US) , Scott C. Stelpflug, Ankeny, IA (US) This is my paper

Pith reviewed 2026-05-21 08:31 UTC · model grok-4.3

classification patents A01H 6/4684A01H 1/00A01H 5/10

keywords hybrid cornmaize varietyplant seedparental crossseed depositcorn breeding

0 comments

The pith

A hybrid corn seed designated CH010528 is produced by crossing parent varieties CV951892 and CV487690 whose representative seeds are deposited under specified accession numbers.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper establishes a new hybrid corn variety through a defined parental cross. It specifies that seeds of CH010528 result from crossing plant variety CV951892 with variety CV487690. Representative seeds of each parent are preserved in a public depository under NCMA accession numbers 202306064 and 202106018. A sympathetic reader would care because the deposit and description allow others to reproduce the exact hybrid for breeding or commercial use. The central object is the hybrid seed itself, defined by its parentage rather than by performance traits.

Core claim

The paper claims a seed of hybrid corn variety CH010528 produced by crossing a first plant of variety CV951892 with a second plant of variety CV487690, with representative seeds of the parent varieties deposited under NCMA Accession No. 202306064 and NCMA Accession No. 202106018 respectively.

What carries the argument

The specific parental cross between deposited lines CV951892 and CV487690 that generates the hybrid seed CH010528.

If this is right

Breeders can obtain the parent seeds from the deposit and recreate the hybrid on demand.
The variety can be maintained and multiplied using the deposited parent lines.
Commercial production of CH010528 seed becomes possible under the patent protection.
Further breeding work can use the same deposited parents to generate related hybrids.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

The patent creates a legal and practical route for others to access and replicate the hybrid once the patent expires.
Similar deposit-based definitions could standardize how other hybrid crops are protected and transferred.
If the parents remain genetically stable, the hybrid can be reproduced reliably for many years after the initial filing.

Load-bearing premise

The deposited seed samples truly match the claimed parent varieties and stay viable and genetically stable enough to produce the described hybrid when crossed.

What would settle it

Grow plants from the deposited parent seeds, perform the cross, and check whether the resulting seeds and plants match the morphological and genetic description of variety CH010528.

read the original abstract

1 . A seed of hybrid corn variety CH010528, produced by crossing a first plant of variety CV951892 with a second plant of variety CV487690, wherein representative seeds of said varieties CV951892 and CV487690 are deposited under NCMA Accession No. 202306064 and NCMA Accession No. 202106018, respectively.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

This is a standard plant-variety patent that simply names one new hybrid corn cross backed by seed deposits; it contains no data, methods, or results.

read the letter

The core fact is that the document asserts ownership over hybrid corn variety CH010528, produced by crossing the two inbred lines CV951892 and CV487690 whose seeds are deposited under the listed NCMA accession numbers. That specific combination and the deposit references are new to the patent record, but the underlying technique of making hybrids from inbred parents has been standard practice for decades. The filing meets the minimal legal test for enablement because anyone with access to the deposits can in principle recreate the hybrid. Beyond that single definitional claim, the text supplies no yield data, disease ratings, agronomic trials, or genetic characterization. The absence of any supporting evidence is not a flaw in a patent context, but it does mean the document adds nothing that a plant breeder or geneticist could use to assess performance or advance understanding. The citation pattern is limited to prior patents on similar varieties, which is expected and not a sign of missing literature. This piece is useful only to seed companies tracking intellectual property or to patent examiners checking novelty of the exact cross. It has no place in a scientific reading group, would not be cited in research, and should be desk-rejected if submitted to a journal as a research article. Treat it strictly as a legal disclosure rather than a contribution to plant science.

Referee Report

0 major / 1 minor

Summary. The manuscript claims a seed of the hybrid corn variety CH010528 produced by crossing a plant of variety CV951892 with a plant of variety CV487690, with representative seeds of the two parent lines deposited under NCMA Accession Nos. 202306064 and 202106018, respectively.

Significance. If the deposited material is viable and genetically stable, the claim supplies a reproducible definition of the hybrid via physical deposits rather than derived parameters or experimental fits. This is the standard mechanism for enabling others to obtain the variety for breeding or commercial use.

minor comments (1)

The single-sentence abstract (and apparently the claim) uses the phrasing 'a seed of hybrid corn variety CH010528' without an explicit statement of the hybrid's agronomic or morphological characteristics that distinguish it from other varieties; adding a brief table or paragraph summarizing distinguishing traits would improve clarity for readers.

Simulated Author's Rebuttal

0 responses · 0 unresolved

We thank the referee for the careful review and for recommending acceptance. The report correctly identifies the central enabling mechanism of the application—the deposit of the parental inbred lines—which supplies a reproducible definition of hybrid variety CH010528.

Circularity Check

0 steps flagged

No circularity; claim is definitional via deposits

full rationale

The document is a plant-variety patent whose central claim is a direct definition: the hybrid seed is produced by crossing two named parent lines whose representative seeds are deposited at NCMA. No equations, fitted parameters, predictions, derivations, or self-citations exist that could reduce the claim to its own inputs. Reproducibility is enabled by the external physical deposits rather than any internal reasoning chain, so the assertion is self-contained and non-circular.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The central claim depends on the legal and biological validity of the two seed deposits and on the assumption that the named varieties are distinct and stable inbred lines.

axioms (1)

domain assumption Deposited seeds under NCMA accession numbers faithfully represent the claimed parent varieties CV951892 and CV487690.
The patent text invokes these accessions to define the parents; no independent verification data are provided.

pith-pipeline@v0.9.0 · 5652 in / 1030 out tokens · 30211 ms · 2026-05-21T08:31:32.022387+00:00 · methodology

discussion (0)

Lean theorems connected to this paper

Citations machine-checked in the Pith Canon. Every link opens the source theorem in the public Lean library.

IndisputableMonolith/Foundation/RealityFromDistinction.lean reality_from_one_distinction unclear

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unclear
Relation between the paper passage and the cited Recognition theorem.

A seed of hybrid corn variety CH010528, produced by crossing a first plant of variety CV951892 with a second plant of variety CV487690, wherein representative seeds of said varieties CV951892 and CV487690 are deposited under NCMA Accession No. 202306064 and NCMA Accession No. 202106018, respectively.

What do these tags mean?

matches: The paper's claim is directly supported by a theorem in the formal canon.
supports: The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
extends: The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
uses: The paper appears to rely on the theorem as machinery.
contradicts: The paper's claim conflicts with a theorem or certificate in the canon.
unclear: Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.