Superior Industries v. Precision Inc.: Wing Pulley Patent Dispute Ends in Dismissal with Prejudice
Superior Industries, Inc. brought a patent infringement action against Precision, Inc. in Iowa’s Southern District Court, asserting two reissued patents covering its Chevron Wing Pulley conveyor technology against Precision’s competing Herringbone and Continuwing pulley products. After 1,172 days of litigation — including contested sanctions orders that were ultimately vacated — the parties jointly moved to dismiss all claims and counterclaims with prejudice.
Three-Year Wing Pulley Patent Battle Ends in Mutual Dismissal with Prejudice
Superior Industries, Inc. filed this patent infringement action on July 23, 2021, in the Iowa Southern District Court (Case No. 4:21-cv-00224), asserting two reissued patents — USRE045145E and USRE048600E — against Precision, Inc. The asserted patents relate to wing pulley technology used in conveyor belt systems, and Superior alleged that Precision’s Herringbone Wing Pulley product lines and its Continuwing Technology infringed these rights. The accused products spanned at least five distinct Precision pulley configurations: the PPI Herringbone Wing Pulley, Boot, CEMA, and Grain Herringbone Wing Pulleys, and the PPI Continuwing Technology.
The case closed on October 7, 2024, when the court granted the parties’ Joint Motion for Order Dismissing Claims with Prejudice and Vacating Sanctions Orders. All claims and counterclaims were dismissed with prejudice — meaning neither party may relitigate these specific claims — and the court simultaneously vacated its prior sanctions orders (ECF Nos. 157, 166, and 170). Each party agreed to bear its own attorney’s fees, costs, and expenses, with the notable exception that plaintiff’s counsel had already made agreed payments of fees to the defendant, which were preserved under the dismissal order.
The 1,172-day duration and the presence of multiple sanctions orders — three in total, all later vacated — suggest a contentious discovery or conduct dispute that was ultimately resolved as part of the settlement negotiations. The vacatur of sanctions orders as a term of dismissal is commercially significant: it suggests Precision extracted meaningful concessions before agreeing to the prejudicial dismissal. The public record does not disclose the financial terms of any underlying settlement agreement, the scope of any license granted, or the specific basis for the original sanctions.
Filing to Dismissed with Prejudice in 1172 days
1,172 days — over three years of active district court litigation before resolution
Dismissed with prejudice: what the joint order means for both parties
Dismissal with prejudice forecloses re-filing these claims
A dismissal with prejudice is a final adjudication on the merits for claim-preclusion purposes. Superior Industries cannot reassert the same infringement claims under USRE045145E and USRE048600E against Precision for the accused products litigated here. The joint motion structure — and the vacatur of three prior sanctions orders as part of the same order — is consistent with a negotiated resolution rather than a unilateral concession.
Res judicata appliesSuperior closes the case but surrenders future enforcement against Precision
By agreeing to dismiss with prejudice, Superior Industries permanently relinquishes its infringement claims against Precision’s Herringbone and Continuwing products under these two patents. The fee-bearing arrangement — where plaintiff’s counsel made agreed payments to defendant — suggests the litigation did not resolve in Superior’s favour on the merits. Whether a broader commercial licence or non-compete arrangement was negotiated remains undisclosed on the public record.
Enforcement rights extinguishedPrecision secures freedom to operate — and vacatur of sanctions
Precision, Inc. achieved a dismissal with prejudice, which means its Herringbone and Continuwing pulley products cannot be the subject of future infringement claims by Superior under these specific reissued patents. Critically, the vacatur of three sanctions orders (ECF Nos. 157, 166, 170) removes those adverse rulings from the public record, suggesting Precision negotiated their elimination as a condition of settlement — a significant procedural win.
Sanctions orders vacatedReissued wing pulley patents remain active but untested at trial
USRE045145E and USRE048600E were never adjudicated on the merits, meaning their validity and claim scope remain untested by a court. For other conveyor equipment manufacturers, these patents remain enforceable and potentially assertable against different defendants. The settlement-in-dismissal outcome provides no claim-construction guidance, leaving the scope of the reissued patents commercially uncertain for the broader conveyor and bulk materials handling sector.
Patent validity unresolvedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Superior Industries, Inc. | Company | Conveyor equipment manufacturer — holder of USRE045145E and USRE048600E (wing pulley patents)Search in Eureka ↗ |
| Defendant | Precision, Inc. | Company | Precision, Inc. — manufacturer of competing Herringbone and Continuwing wing pulley productsSearch in Eureka ↗ |
| Plaintiff counsel | Akina R. Khan | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Benjamen Charles Linden | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Cyrus A. Morton | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Francois Ecclesiaste | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Navin Ramalingam | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Travis Keith Waller | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Wesley T. Graham | Attorney | Counsel for Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Duncan Green PC | Law Firm | Representing Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff law firm | LEWIS BRISBOIS | Law Firm | Representing Superior Industries, Inc.Search in Eureka ↗ |
| Plaintiff law firm | ROBINS KAPLAN LLP (MN) | Law Firm | Representing Superior Industries, Inc.Search in Eureka ↗ |
| Defendant counsel | Brant D. Kahler | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Jordan Elizabeth Meggison Decker | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Joseph J. Gribbin | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Kyle G. Gottuso | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Margaret R. Szewczyk | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Mark A. Thomas | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Nathan James Borland | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant counsel | Richard L. Brophy | Attorney | Counsel for Precision, Inc.Search in Eureka ↗ |
| Defendant law firm | ARMSTRONG TEASDALE LLP (DE) | Law Firm | Representing Precision, Inc.Search in Eureka ↗ |
| Defendant law firm | ARMSTRONG TEASDALE LLP (MO) | Law Firm | Representing Precision, Inc.Search in Eureka ↗ |
| Defendant law firm | BROWN WINICK | Law Firm | Representing Precision, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Iowa Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order adopts the parties’ joint motion verbatim, dismissing all claims and counterclaims with prejudice while simultaneously vacating three prior sanctions orders. The ‘with prejudice’ designation carries permanent res judicata effect for the specific claims litigated. The vacatur of sanctions — typically an extraordinary remedy — as a bundled term of the dismissal order strongly suggests the parties negotiated these concessions bilaterally. The fee arrangement, whereby plaintiff’s counsel made agreed payments to defendant, is atypical and consistent with a resolution that favoured Precision’s litigation position.
USRE045145E & USRE048600E — Reissued Wing Pulley Conveyor Patents
USRE045145E and USRE048600E are reissued United States patents, originating from application numbers US13/068153 and US15/979879 respectively. Reissued patents are granted by the USPTO when the original patent is deemed wholly or partly inoperative due to a defective specification or overclaimed/underclaimed scope. The reissue process allows patentees to broaden or clarify claims — making the resulting rights potentially more expansive than the originally granted version. Both patents relate to wing pulley technology, a critical component in conveyor belt systems used across agriculture, mining, and bulk materials handling industries.
Wing pulleys are used in conveyor belt drive and return applications to reduce material build-up, belt wear, and maintenance requirements — making them commercially significant in grain handling, mining, and industrial processing. Superior’s Chevron Wing Pulley product is the commercial embodiment of the asserted patents. The reissue designation means competitors cannot rely solely on original patent prosecution history to assess non-infringement; the broadened reissue claims may capture product designs that would have fallen outside the original grant. For manufacturers of herringbone-style, segmented, or alternative-geometry wing pulleys, both patents represent ongoing freedom-to-operate risk.
Should you run an FTO against USRE045145E and USRE048600E?
Any company designing, manufacturing, or importing wing pulleys for conveyor belt applications — particularly herringbone, segmented-wing, or Continuwing-style configurations — should conduct a formal freedom-to-operate analysis against both USRE045145E and USRE048600E. Because neither patent was construed by a court in this litigation, their enforceable claim scope remains legally undefined. R&D teams developing alternatives to traditional crowned or lagged pulleys are especially exposed, as reissued patents can capture design-arounds that predated the reissue grant.
PatSnap Eureka’s FTO Search Agent allows product teams to map their wing pulley designs against the full claim trees of both reissued patents, identify prior art that may support validity challenges, and benchmark against the prosecution history of both original and reissued applications. Given that the claims were never construed in litigation, Eureka’s claim-mapping tools provide a structured way to assess infringement risk before product launch or market entry — reducing exposure to the kind of multi-year, multi-sanctions litigation that characterised this case.
Run a freedom-to-operate analysis on USRE045145E to assess your product’s exposure
Run FTO in Eureka →Similar Wing Pulley & Conveyor Equipment Patent Cases
Explore related patent infringement actions involving conveyor equipment and industrial pulley technology litigated in Iowa and Midwestern district courts.
What this case signals for the conveyor equipment IP landscape
Three sanctions orders, two reissued patents, and a 1,172-day dispute reveal key risk patterns for wing pulley and conveyor belt manufacturers.
Reissued patents demand close FTO scrutiny before product launch
Both asserted patents — USRE045145E and USRE048600E — are reissued patents, which means the USPTO broadened or corrected the original claims after grant. Reissue patents can recapture subject matter initially disclaimed, making their claim scope potentially wider than the original. Conveyor product teams should run FTO analysis against reissued patents specifically, not just original grant versions.
Sanctions litigation as settlement leverage: a pattern to monitor
The presence of three separate sanctions orders — all subsequently vacated as part of the dismissal — suggests that procedural conduct became a negotiating chip in settlement talks. IP litigants should be aware that aggressive discovery positions or litigation conduct can generate sanctions exposure that ultimately affects settlement dynamics and the value each side assigns to resolution.
Superior v Precision — key questions answered
Superior Industries, Inc. sued Precision, Inc. in the Iowa Southern District Court for infringement of two reissued wing pulley patents (USRE045145E and USRE048600E). After 1,172 days of litigation, including three contested sanctions orders, the parties filed a joint motion and all claims and counterclaims were dismissed with prejudice on October 7, 2024. The court also vacated the prior sanctions orders as part of the same order.
Both are reissued US patents relating to wing pulley technology used in conveyor belt systems. Reissued patents have undergone USPTO review to correct or broaden claims beyond the original grant. In this case, the patents covered the Chevron Wing Pulley design, and were asserted against Precision’s Herringbone and Continuwing wing pulley products. The precise claim scope was never construed by the court, leaving enforceability boundaries commercially uncertain.
The court vacated three prior sanctions orders (ECF Nos. 157, 166, and 170) as part of the joint dismissal order requested by both parties. The public record does not disclose the specific basis for the original sanctions. The vacatur as a negotiated term of dismissal suggests it was a material concession extracted by one or both parties during settlement discussions — most likely Precision, as the sanctions appear to have been directed at plaintiff’s conduct.
The dismissal with prejudice forecloses Superior from reasserting the same infringement claims under these two patents against the specific accused products identified in this litigation. However, future Precision product designs not specifically named in the original complaint, or claims under different patents, may not be covered by the preclusion. Precision should assess the exact scope of the complaint’s product definitions to understand the full preclusive effect.
Reissued patents are granted when the USPTO determines the original patent was wholly or partly inoperative due to specification defects or claim scope errors. The reissue process can broaden original claims, meaning a reissued patent may capture product designs that fell outside the original grant. For defendants and FTO analysis, this means original prosecution history alone is insufficient — the reissue prosecution history and any intervening rights doctrine must also be assessed.
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