Gramm & Reaper Solutions v. Deere & Co.: Corn Header Sensor Patent Claim Defeated
Richard Gramm, Reaper Solutions LLC, and Headsight Inc. sued John Deere in the Iowa Southern District Court, asserting US6202395B1 covering height-sensing technology for corn headers. After 706 days of litigation, the court entered judgment against plaintiffs on their sole infringement claim and in Deere’s favor on all counterclaims.
How Deere Defeated a Corn Header Sensor Infringement Suit on the Merits
Filed on 23 February 2022 in the Iowa Southern District Court, this case pitted inventor Richard Gramm, his commercialisation vehicle Reaper Solutions LLC, and agricultural technology company Headsight Inc. against Deere & Co. — one of the world’s largest agricultural equipment manufacturers. The plaintiffs alleged that Deere’s height sensors, mounted or mountable to corn headers, infringed US6202395B1, a patent protecting sensing technology used to control header height during harvesting operations.
The case closed on 30 January 2024 when the court entered judgment against plaintiffs on their sole infringement claim and in favour of Deere on all counterclaims — a full merits victory for the defendant. The order denying further proceedings (Dkt. 229) preceded the final judgment, suggesting the court resolved the dispositive issue decisively, leaving no viable path for plaintiffs to continue the action at first instance.
At 706 days, the case ran longer than many district court patent disputes resolved at summary judgment, suggesting substantive litigation through claim construction and potentially expert discovery before resolution. The public record does not disclose the precise basis for the merits judgment — whether claim construction, invalidity on counterclaim, or non-infringement — but the comprehensive nature of the ruling, covering the sole claim and all counterclaims, is consistent with a dispositive motion outcome rather than a mid-case settlement.
Filing to Judgment on the merits for Defendant in 706 days
706 days — longer than the median district court patent case resolution of ~500 days
Judgment for Deere: what a full merits defense win means for both sides
Judgment on the merits: the most decisive district court outcome
A judgment on the merits means the court resolved the substantive dispute — not a procedural technicality. The plaintiffs’ infringement claim was adjudicated and defeated, and Deere prevailed on every counterclaim it raised. This forecloses relitigating the same claims against Deere on this patent in this court, and typically carries strong preclusive effect in any subsequent proceedings.
Full merits adjudicationInfringement claim extinguished — enforcement position severely weakened
The judgment against plaintiffs on their sole infringement claim effectively ends this enforcement campaign against Deere. If any counterclaims included invalidity of US6202395B1, the patent’s commercial value as a licensing tool would be materially reduced. Even absent an invalidity finding, the failed infringement verdict signals that Deere’s specific corn header height sensor implementation does not fall within the asserted claims — narrowing future enforcement scope.
Enforcement position weakenedDeere prevails on every front, including its own counterclaims
Deere’s litigation team at Crowell & Moring secured a clean sweep: no infringement liability and affirmative relief on all counterclaims. A counterclaim win can include invalidity, unenforceability, or a declaration of non-infringement. This outcome insulates Deere’s corn header height sensor products from further claims under this patent and may deter follow-on litigation from the same plaintiffs.
Full defense victoryAgricultural sensing IP: harder enforcement environment after this ruling
For competitors designing around corn header height sensing technology, this outcome suggests that Deere’s implementation successfully avoided the scope of US6202395B1 — or that the patent was found invalid. Either result is informative for FTO analysis. Companies operating in precision harvesting and header control technology should note that enforcement of narrow sensor patents against large OEMs faces high evidentiary and claim-scope hurdles.
OEM enforcement risk reducedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Richard Gramm | Individual | Agricultural sensor IP licensor — holder of US6202395B1 (corn header height sensing)Search in Eureka ↗ |
| Co-Plaintiff | Reaper Solutions LLC | Company | Search in Eureka ↗ |
| Co-Plaintiff | Headsight, Inc. | Company | Search in Eureka ↗ |
| Defendant | Deere & Co. | Company | Deere & Co. — global agricultural equipment manufacturer, maker of John Deere corn headersSearch in Eureka ↗ |
| Plaintiff counsel | Christopher A. Young | Attorney | Counsel for Richard GrammSearch in Eureka ↗ |
| Plaintiff counsel | Glenn L. Johnson | Attorney | Counsel for Richard GrammSearch in Eureka ↗ |
| Plaintiff counsel | John A. Cotter | Attorney | Counsel for Richard GrammSearch in Eureka ↗ |
| Plaintiff counsel | Thomas John Oppold | Attorney | Counsel for Richard GrammSearch in Eureka ↗ |
| Plaintiff law firm | Larkin Hoffman Law Firm | Law Firm | Representing Richard GrammSearch in Eureka ↗ |
| Plaintiff law firm | Mckee Voorhees & Sease, PLC | Law Firm | Representing Richard GrammSearch in Eureka ↗ |
| Defendant counsel | Jeffry M. Nichols | Attorney | Counsel for Deere & Co.Search in Eureka ↗ |
| Defendant counsel | Judy He | Attorney | Counsel for Deere & Co.Search in Eureka ↗ |
| Defendant counsel | Laura Lydigsen | Attorney | Counsel for Deere & Co.Search in Eureka ↗ |
| Defendant counsel | Wesley T. Graham | Attorney | Counsel for Deere & Co.Search in Eureka ↗ |
| Defendant law firm | Crowell & Moring, LLP (Il) | Law Firm | Representing Deere & Co.Search in Eureka ↗ |
| Defendant law firm | Duncan Green PC | Law Firm | Representing Deere & Co.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Iowa Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The verdict language is notably comprehensive: judgment entered against plaintiffs on ‘its sole claim of infringement’ and in Deere’s favor on ‘all counterclaims.’ The phrase ‘all counterclaims’ suggests Deere asserted multiple affirmative positions — potentially including invalidity or unenforceability — each of which was resolved in its favor. The reference to Order 229 denying ‘further proceedings’ indicates the court actively closed off plaintiffs’ options before entering final judgment, signalling a deliberate and conclusive disposition on the merits rather than a procedural default.
US6202395B1 — Corn Header Height Sensing Technology
US6202395B1 (application no. US09/223921) covers height-sensing technology designed for corn headers used in agricultural harvesting. Height sensors on corn headers detect ground clearance and crop contact in real time, enabling automated or operator-assisted adjustments that reduce crop loss and header damage. The patent’s filing date — application number format suggests late 1990s prosecution — places it in an early era of precision agriculture automation, potentially giving it broad claim scope relative to modern sensor implementations.
Corn header height sensing is a commercially significant technology as precision agriculture adoption accelerates. Deere’s market dominance in combine harvesters makes any patent assertable against its header product line strategically valuable — and vigorously contested. The fact that Headsight Inc., a specialist in header control systems, co-asserted this patent alongside inventor Gramm suggests the technology is directly competitive with Deere’s own sensor solutions. The merits defeat leaves the patent’s enforceability against other OEMs — AGCO, CNH, Claas — as an open question worth monitoring.
Should you run an FTO analysis against US6202395B1?
Any manufacturer, Tier 1 supplier, or precision agriculture technology company developing height sensing systems for corn headers or similar small-grain headers should consider an FTO review against US6202395B1. The patent’s outcome in this case — particularly whether any invalidity counterclaim succeeded — directly affects whether the patent remains a live risk. If claims were not invalidated, the patent survives and may be asserted against products outside Deere’s specific implementation.
PatSnap Eureka’s FTO Search Agent can map your specific sensor mounting architecture against the claim language of US6202395B1, incorporating prosecution history and any court-construed claim terms from this proceeding. For R&D teams designing next-generation header control systems, this analysis should be completed before product launch — particularly given the multiple plaintiffs structure here, which suggests an active monetisation strategy that may continue against other targets.
Run a freedom-to-operate analysis on US6202395B1 to assess your product’s exposure
Run FTO in Eureka →Similar Patent Cases: Agricultural Sensor Technology in U.S. District Courts
Cases involving agricultural equipment sensor patents litigated in Iowa and Midwest federal district courts, including precision harvesting and header control technology disputes.
What this case signals for the agricultural sensor IP landscape
A full merits defense win for Deere sets a high bar for future sensor patent enforcement against major agricultural OEMs.
Sole-claim cases carry existential risk for plaintiffs
The plaintiffs asserted only one infringement claim. With no fallback position, a single adverse ruling on claim construction or non-infringement terminates the entire action. Patent holders enforcing agricultural sensor patents against large OEMs should assess claim breadth and alternative claim theories before filing to avoid a similarly binary outcome.
Deere’s counterclaim sweep strengthens its freedom to operate
Prevailing on all counterclaims — not merely defeating infringement — gives Deere a more durable legal position. If invalidity was among those counterclaims, the patent cannot be re-asserted against Deere or, potentially, any party. Companies supplying or integrating corn header sensors should track whether an invalidity judgment was entered as part of this record.
Richard v Deere — key questions answered
Judgment was entered against all plaintiffs on their sole infringement claim and in favor of Deere & Co. on all counterclaims. The Iowa Southern District Court issued its judgment on 30 January 2024, following an order denying further proceedings, constituting a full merits victory for the defendant.
The plaintiffs asserted US6202395B1 (application no. US09/223921), a patent covering height sensing technology for corn headers used in agricultural harvesting. The accused products were Deere height sensors mounted or mountable to corn headers.
A counterclaim win means Deere not only defeated the infringement allegation but affirmatively prevailed on positions it asserted against the plaintiffs. Depending on the specific counterclaims filed — which may include patent invalidity or unenforceability — this could mean US6202395B1 was invalidated, which would have sector-wide implications beyond just this case.
A 706-day duration in a district court patent case is consistent with full proceedings through claim construction, expert discovery, and dispositive motion briefing. The absence of any settlement and the ultimate merits judgment suggests both sides litigated substantively. The specific procedural history is not fully public, but the timeline is consistent with a Markman hearing and summary judgment process.
Potentially. If Deere’s counterclaims included a successful invalidity challenge to US6202395B1, the patent may no longer be enforceable by any party against any defendant. If only non-infringement was found, the patent survives and could still be asserted against other OEMs or suppliers — AGCO, CNH, Claas — whose sensor implementations differ from Deere’s. An FTO analysis is advisable for any company active in header height sensing.
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