In a swift resolution spanning just 111 days, the U.S. Court of Appeals for the Federal Circuit closed Case No. 24-1640 between French digital printing innovator MGI Digital Technology S.A. and Duplo U.S.A., Corp. following a joint agreement to voluntarily dismiss the appeal under Fed. R. App. P. 42(b). Filed on April 2, 2024, and closed on July 22, 2024, the infringement action centered on four U.S. patents — US8783806B2, US9422449B2, US8506031B2, and USRE045067E — covering inkjet printing and protective coating application technologies. Each side was ordered to bear its own costs, leaving no public damages award on record.

For IP professionals and patent strategists operating in the digital printing and inkjet coating space, this case is a significant signal. A voluntary dismissal at the Federal Circuit level — after the substantial effort and expense of briefing an appeal — often reflects a confidential resolution between the parties, raising important questions about licensing dynamics, portfolio positioning, and FTO risk across these four patents. Attorneys monitoring inkjet and substrate-coating patent litigation should treat this dismissal as a prompt to reassess competitive exposure in a field where MGI Digital holds a formidable portfolio.

Case Overview

The Parties

The Patents at Issue

The four patents at issue — US8783806B2, US9422449B2, US8506031B2, and USRE045067E — collectively cover inkjet printing systems and methods designed to deposit protective or decorative coatings onto substrates such as paper, card stock, and packaging materials. These inventions describe how ink-jet mechanisms can be precisely controlled to apply UV-curable or other liquid coatings in defined patterns, enabling high-quality spot finishing and full-coverage lamination alternatives in commercial print workflows. Real-world applications include digital varnishing, spot UV coating, and personalized finishing on printed packaging and marketing collateral.

• • US8783806B2
• • US9422449B2
• • US8506031B2
• • USRE045067E

Legal Representation

Plaintiff Counsel: Husch Blackwell LLP (lead: John Aron Carnahan)
Defendant Counsel: Fish & Richardson PC (lead: John Johnson)

Litigation Timeline & Procedural History

Case No. 24-1640 was filed at the U.S. Court of Appeals for the Federal Circuit on April 2, 2024, signaling that a lower-court infringement dispute between MGI Digital Technology S.A. and Duplo U.S.A., Corp. had progressed through at least one prior trial-level stage before reaching the nation’s specialized patent appellate court. The Federal Circuit’s exclusive jurisdiction over patent matters makes it the definitive venue for resolving questions of claim scope, infringement, and patent validity — and the decision to appeal here carried significant strategic weight for both parties operating in the competitive inkjet printing market.

The case closed just 111 days after filing — remarkably fast for a Federal Circuit appeal, where full merits proceedings typically span 18 to 24 months. This compressed timeline strongly suggests the parties reached a private resolution shortly after the appeal was docketed, bypassing full briefing and oral argument. The termination mechanism — voluntary dismissal under Fed. R. App. P. 42(b) by joint stipulation — and the symmetric cost order requiring each side to bear its own expenses are consistent with a confidential settlement or licensing agreement, the financial terms of which were not publicly disclosed.

The Verdict & Legal Analysis

Outcome

The Federal Circuit dismissed Case No. 24-1640 on July 22, 2024, pursuant to a joint stipulation of the parties under Fed. R. App. P. 42(b), with each side ordered to bear its own costs. No damages were awarded, no injunction was entered, and no merits ruling on infringement or validity of the four asserted patents was issued by the court. The underlying terms of any resolution between MGI Digital Technology S.A. and Duplo U.S.A., Corp. were not disclosed in the public record.

Verdict Cause Analysis

Although the case was resolved without a merits decision, the infringement action and its voluntary dismissal at the appellate stage reveal several important legal and strategic dynamics worth analyzing.

• The original action was an infringement claim asserting that Duplo U.S.A.’s inkjet printing and coating products practiced methods or systems covered by four MGI Digital patents — US8783806B2, US9422449B2, US8506031B2, and USRE045067E — spanning both original and reissue patent rights.
• By escalating to the Federal Circuit via appeal, at least one party sought to challenge a lower tribunal’s ruling on infringement, validity, or claim construction, though the specific lower-court outcome is not detailed in the public appellate record.
• The inclusion of a reissue patent (USRE045067E) in the asserted portfolio is legally significant, as reissue patents can reflect a patentee’s deliberate effort to broaden or correct claim scope after initial issuance, potentially affecting the infringement analysis relative to accused products.
• Voluntary dismissal under Fed. R. App. P. 42(b) by mutual agreement, with symmetric cost allocation, is a procedural outcome that preserves no precedent on the merits and leaves the underlying patents fully enforceable against other parties in future proceedings.

Legal Significance

1. Because the Federal Circuit dismissed this appeal on agreed procedural grounds rather than issuing a merits opinion, the four asserted patents — US8783806B2, US9422449B2, US8506031B2, and USRE045067E — emerge from this litigation without any appellate claim construction or invalidity ruling, leaving them fully intact and available for assertion against other defendants in the inkjet printing and coating space.
2. The presence of a reissue patent (USRE045067E) among the asserted claims signals that MGI Digital has actively managed and potentially broadened its patent portfolio post-issuance, a practice that courts and defendants must scrutinize carefully when evaluating intervening rights and prosecution history estoppel in future infringement disputes.
3. A voluntary dismissal at the Federal Circuit level after only 111 days, with no publicly disclosed terms, sets no binding precedent but serves as a market signal that the parties likely reached a licensing or cross-licensing arrangement, which could influence how other competitors in the digital finishing and inkjet coating market assess their own FTO exposure and negotiation leverage against MGI Digital’s portfolio.

Strategic Takeaways

For Patent Attorneys:

• Because no Federal Circuit merits ruling was issued, the claim construction and validity of all four asserted patents remain undisturbed — attorneys representing other inkjet printing or coating companies should treat these patents as fully potent litigation assets and advise clients accordingly.
• The use of a reissue patent (USRE045067E) as part of the asserted portfolio warrants careful prosecution history review in any future FTO or validity analysis, particularly with respect to intervening rights that may have arisen between the original and reissue issuance dates.
• When counseling clients on appeal strategy in patent infringement matters, the swift resolution here illustrates that a Federal Circuit filing can create meaningful settlement leverage even without advancing to full briefing — particularly where the parties’ commercial relationship may benefit from a private resolution.
• Attorneys filing or defending inkjet and substrate-coating patent matters should monitor MGI Digital’s portfolio (application US13/948670, US14/395843, US12/649765, US12/708806) for continuation or divisional activity, as the absence of a merits ruling may embolden further assertion.

For IP Professionals:

• In-house IP teams at companies commercializing digital printing, inkjet coating, or substrate finishing products should immediately audit their product lines against the four MGI Digital patents to determine whether any licensing or design-around steps are warranted before a similar action is initiated against them.
• The voluntary dismissal with each side bearing its own costs suggests a negotiated outcome — IP teams should track any patent assignment or licensing recordals at the USPTO following this dismissal, as these may reveal the contours of a deal that could set expectations for future licensing negotiations in this space.

For R&D Teams:

• R&D teams developing inkjet printing systems or digitally applied protective coatings should conduct a targeted FTO search against US8783806B2, US9422449B2, US8506031B2, and USRE045067E before finalizing product architectures, focusing particularly on the method claims covering deposition control and layer application sequences.
• Because no court invalidated or narrowed any of the four asserted patents, engineering teams should treat design-around as a live option — consulting with patent counsel to identify alternative coating deposition mechanisms, nozzle configurations, or substrate handling methods that fall outside the scope of MGI Digital’s claimed inventions.