Davaus v. S7 IP Holdings: Cornhead Patent Case Transferred to South Dakota
Davaus, LLC filed a patent infringement action against S7 IP Holdings, LLC and Shawn Gengerke in Indiana’s Northern District, asserting US9961830B2 covering a combine cornhead row unit designed to reduce field yield losses. After 534 days, the court granted defendants’ motion and transferred the entire case to the District of South Dakota under 28 U.S.C. §1406(a), signalling a venue defect rather than a merits ruling.
Venue defect ends Indiana proceedings before merits are reached
On September 18, 2023, Davaus, LLC filed an infringement action in the United States District Court for the Northern District of Indiana, asserting US9961830B2 against S7 IP Holdings, LLC and individual defendant Shawn Gengerke. The patent in suit covers a combine cornhead row unit engineered to reduce field yield losses during harvest — a commercially significant advance in precision agricultural equipment. Barrett McNagny, LLP represented Davaus, while S7 IP Holdings deployed a four-attorney defence team across DeWitt LLP and Taft, Stettinius & Hollister LLP.
Rather than defending on the merits, the defendants moved to transfer the case on venue grounds. The court granted that motion and directed the Clerk to transfer proceedings to the United States District Court for the District of South Dakota pursuant to 28 U.S.C. §1406(a) — the statute governing transfers when venue in the originating district is improper or defective. The Indiana court closed the case on March 5, 2025, without issuing any ruling on infringement, validity, or damages.
The 534-day duration before transfer suggests the venue challenge was substantively contested before the court resolved it. Section 1406(a) transfers, as opposed to §1404(a) convenience transfers, typically indicate that venue was found to be legally improper in Indiana — not merely inconvenient. What remains unknown from the public record is whether the South Dakota proceedings have commenced, how Gengerke’s individual liability will be framed in the new forum, and whether the parties explored settlement during the Indiana phase.
Filing to Case Transferred in 534 days
534 days from filing to transfer — venue resolved before any merits adjudication
Case transferred to South Dakota: what the §1406(a) order means
§1406(a) transfer signals improper — not merely inconvenient — venue
28 U.S.C. §1406(a) empowers a court to transfer a case when venue in the original district is improper. This is distinct from a §1404(a) convenience transfer. A §1406(a) transfer suggests the court found that Indiana was not a legally permissible forum for this dispute — likely because S7 IP Holdings and Gengerke lacked the requisite contacts with the Northern District of Indiana. The substantive litigation now continues in South Dakota.
Improper venue — §1406(a)Davaus retains its infringement claims — litigation continues in South Dakota
A §1406(a) transfer preserves the plaintiff’s case entirely. Davaus, LLC did not lose on the merits and its claims under US9961830B2 remain live. However, Davaus must now litigate in South Dakota — a forum likely more favourable to the defendants — and will need to adapt its litigation strategy, potentially including retaining local South Dakota counsel and re-evaluating procedural timelines.
Claims survive — new forumS7 IP Holdings wins the venue fight — now faces merits in home forum
The defendants’ successful transfer motion is a meaningful procedural win: litigating in a familiar or more convenient forum typically reduces costs and can influence case dynamics. However, the transfer resolves only venue — not infringement or validity. S7 IP Holdings and Shawn Gengerke must still defend against US9961830B2 on the merits before the District of South Dakota.
Procedural win — merits pendingAgricultural equipment IP enforcers must carefully map defendant contacts
This transfer is a practical reminder that venue selection in patent cases involving IP holding entities requires rigorous pre-filing analysis of where the defendant entity and individual officers are incorporated, reside, or have committed infringing acts. Asserting in an improper district can cost the plaintiff over a year of proceedings and force relitigation of procedural posture. Companies operating in precision ag IP should monitor the South Dakota docket for merits outcomes.
Venue diligence criticalFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Davaus, LLC | Company | Agricultural equipment IP holder — asserting US9961830B2 on cornhead row unit technologySearch in Eureka ↗ |
| Defendant | S7 IP Holdings, LLC | Company | S7 IP Holdings, LLC and individual Shawn Gengerke — IP holding entity and associated individualSearch in Eureka ↗ |
| Co-Defendant | Shawn Gengerke | Individual | Search in Eureka ↗ |
| Plaintiff counsel | Benjamin D. Ice | Attorney | Counsel for Davaus, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Barrett McNagny, LLP | Law Firm | Representing Davaus, LLCSearch in Eureka ↗ |
| Defendant counsel | Hayley A Sears | Attorney | Counsel for S7 IP Holdings, LLCSearch in Eureka ↗ |
| Defendant counsel | Jonathan G Polak | Attorney | Counsel for S7 IP Holdings, LLCSearch in Eureka ↗ |
| Defendant counsel | Joseph M Tanner | Attorney | Counsel for S7 IP Holdings, LLCSearch in Eureka ↗ |
| Defendant counsel | Zachary P Armstrong PHV | Attorney | Counsel for S7 IP Holdings, LLCSearch in Eureka ↗ |
| Defendant law firm | DeWitt LLP – Min/MN | Law Firm | Representing S7 IP Holdings, LLCSearch in Eureka ↗ |
| Defendant law firm | Taft, Stettinius & Hollister LLP (Ind/IN) | Law Firm | Representing S7 IP Holdings, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Indiana Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order grants the defendants’ transfer motion in full, directing transfer to the District of South Dakota under 28 U.S.C. §1406(a) — the improper venue statute. Critically, this is a procedural disposition: the Indiana court made no finding on infringement, validity, claim construction, or damages. The order’s reliance on §1406(a) rather than §1404(a) suggests the court determined that venue was legally defective in Indiana, not merely inconvenient. The case proceeds with all substantive issues unresolved before the South Dakota district court.
US9961830B2 — Combine Cornhead Row Unit Technology
US9961830B2 protects a combine cornhead row unit engineered specifically to reduce field yield losses — a persistent efficiency challenge in grain harvesting. The patent application number US15/039163 reflects a filing in the mid-2010s, a period of rapid innovation in precision agricultural machinery as manufacturers sought to recover yield lost to mechanical header inefficiencies. The patent’s claims likely address structural or mechanical features of individual row units that interact with standing corn stalks to reduce ear loss, stalk damage, or header gathering inefficiencies.
In the precision agriculture sector, cornhead row unit improvements represent commercially high-value IP: even marginal yield recovery across large-scale farming operations translates to significant economic benefit. A patent asserting enforceable claims in this space can create meaningful barriers for OEM cornhead manufacturers, aftermarket row unit suppliers, and agricultural equipment distributors. The continued life of this litigation in South Dakota means US9961830B2 remains an active enforcement instrument — competitors and suppliers active in the North American corn belt should treat this patent as a live FTO concern.
Should you run an FTO against US9961830B2?
Any company designing, manufacturing, distributing, or selling combine cornhead row units — or components used in such units — should assess their exposure to US9961830B2. This is particularly urgent for aftermarket row unit suppliers, OEM cornhead manufacturers, and precision ag equipment distributors operating in markets where Davaus, LLC has active commercial interests. With no invalidity ruling on record and the infringement case actively transferred rather than dismissed, this patent carries full presumption of validity.
PatSnap Eureka’s FTO Search Agent allows R&D and product teams to map their cornhead row unit designs against the claims of US9961830B2 in minutes, identifying overlap risk and surfacing prior art that could support a validity challenge. Eureka also tracks the South Dakota docket for any claim construction orders or IPR filings that may affect enforceability — ensuring your competitive intelligence is current before product launch or supply chain commitments.
Run a freedom-to-operate analysis on US9961830B2 to assess your product’s exposure
Run FTO in Eureka →Similar Patent Cases: Combine & Harvesting Equipment Infringement
These cases involve comparable patent enforcement actions in agricultural harvesting equipment technology before US district courts, including venue and infringement disputes.
What this case signals for the agricultural equipment IP landscape
A §1406(a) transfer after 534 days carries lessons for IP enforcement strategy in precision agriculture technology.
Pre-filing venue analysis is non-negotiable for IP holding company defendants
When defendants are IP holding entities or individuals with limited operational footprint, plaintiffs must conduct granular venue analysis before filing. The Northern District of Indiana lacked proper venue here — resulting in 534 days of proceedings without any merits progress. Thorough pre-filing diligence on defendant contacts, incorporation, and acts of infringement by district is essential.
§1406(a) vs §1404(a): the distinction matters for case outcome prediction
Practitioners monitoring this docket should note that a §1406(a) transfer — improper venue — is legally distinct from a §1404(a) convenience transfer. The former signals that the originating court found it lacked authority to hear the case in Indiana, not merely that South Dakota was more convenient. This affects how the transferred case is received and potentially how courts view the plaintiff’s original forum choice.
Davaus v S7 — key questions answered
The Northern District of Indiana transferred the case to the District of South Dakota under 28 U.S.C. §1406(a) after granting defendants’ motion. No ruling on infringement or validity was issued. The case, asserting US9961830B2 covering a combine cornhead row unit, was closed in Indiana on March 5, 2025 after 534 days of proceedings.
A §1406(a) transfer means the court found venue in the original district was legally improper — not merely inconvenient. Unlike a §1404(a) convenience transfer, §1406(a) signals a defect in the plaintiff’s choice of forum. The case is not dismissed; all claims survive and proceed in the transferee court, but the plaintiff must re-establish its litigation posture in the new district.
US9961830B2 is a United States patent covering a combine cornhead row unit designed to reduce field yield losses during grain harvesting. It was asserted by Davaus, LLC against S7 IP Holdings, LLC and Shawn Gengerke. Application number US15/039163 suggests it was filed in the mid-2010s during a period of active innovation in precision agricultural machinery.
Plaintiff Davaus, LLC is represented by Barrett McNagny, LLP and asserts infringement of US9961830B2. Defendants are S7 IP Holdings, LLC — an IP holding entity — and individual Shawn Gengerke. The defence was handled by a four-attorney team spanning DeWitt LLP and Taft, Stettinius & Hollister LLP.
No. The transfer order was purely procedural and made no ruling on the validity, claim scope, or enforceability of US9961830B2. The patent retains its full presumption of validity. The infringement case continues before the District of South Dakota, meaning the patent remains an active enforcement risk for parties in the combine cornhead row unit market.
PatSnap Eureka searches patents and litigation data to answer instantly.