Crown Packaging v. Belvac: On-Sale Bar Ends Can-Making Patent Fight

Case Overview

The Parties

The Patents at Issue

This landmark case involved four U.S. patents covering high-performance metal forming and necking technology:

• • US7770425B2 — Methods and apparatus for forming the necked profile of two-piece aluminum beverage cans.
• • US9308570B2 — Methods and apparatus for forming the necked profile of two-piece aluminum beverage cans.
• • US9968982B2 — Methods and apparatus for forming the necked profile of two-piece aluminum beverage cans.
• • US10751784B2 — Methods and apparatus for forming the necked profile of two-piece aluminum beverage cans.

The Accused Product

The accused product was the Belvac necker, a machine integral to producing the characteristic neck geometry of a typical two-piece aluminum beverage can. Given Belvac’s market position, the commercial stakes of this litigation extended to manufacturing operations across the beverage industry.

Legal Representation

Plaintiffs were represented by Baker & Hostetler LLP and Gentry Locke Rakes & Moore LLP, with a ten-attorney team including Daniel J. Goettle, Robert Patrick Leeson, and Jeffrey Lesovitz, among others.

Defendant Belvac was represented by McGuireWoods LLP, with counsel including Brian Charles Riopelle, David Evan Finkelson, and Matthew George Rosendahl.

Litigation Timeline & Procedural History

The case was filed on July 9, 2018, in the Western District of Virginia — Belvac’s home jurisdiction — and remained active for 2,394 days, closing on January 27, 2025. That duration reflects the complexity typical of multi-patent machinery litigation, encompassing claim construction proceedings, competing summary judgment motions, and a significant appellate detour.

A pivotal early procedural milestone was the district court’s grant of Plaintiffs’ Motion for Summary Judgment (Dkt. 125) on the issue of no on-sale bar under 35 U.S.C. § 102(b), formalized in its Order at Dkt. 214. This ruling initially favored Crown Packaging by clearing the patents of an on-sale bar challenge — a ruling that Belvac successfully challenged on appeal.

The Federal Circuit’s December 10, 2024 decision (122 F.4th 919; 2024 WL 5049205) reversed the district court on that issue, finding that the on-sale bar applied. The district court then swiftly complied, vacating its summary judgment order and entering final judgment for Belvac on January 27, 2025. This appeal-driven reversal compressed what might have been a lengthy remand into a clean, final resolution.

The Verdict & Legal Analysis

Outcome

The district court entered judgment in favor of Defendant Belvac on the on-sale bar issue under 35 U.S.C. § 102(b). The prior summary judgment in favor of Crown Packaging on that same issue was vacated. No damages were awarded to plaintiffs. The case was struck from the court’s active docket. Specific financial terms are not applicable, as the case was resolved on a validity ground prior to any damages determination.

Verdict Cause Analysis: The On-Sale Bar Under § 102(b)

The decisive legal issue was whether the asserted patents were invalid under the on-sale bar, a doctrine that bars patent protection for inventions that were offered for sale more than one year before the patent application’s effective filing date. Under the Leahy-Smith America Invents Act (AIA), § 102(b)(1) codifies this bar, while pre-AIA § 102(b) governed relevant patent families here.

The district court had originally granted summary judgment to Crown Packaging, concluding that the on-sale bar did not apply to the asserted patents — effectively preserving their validity on that threshold question. Belvac appealed this finding, and the Federal Circuit disagreed, reversing the district court’s analysis in its December 10, 2024 opinion (Crown Packaging Technology, Inc. v. Belvac Production Machinery, Inc., 122 F.4th 919 (Fed. Cir. 2024)).

While the full reasoning of the Federal Circuit opinion should be reviewed directly, the reversal indicates that commercial activity predating the critical date — likely involving offers for sale of technology embodying the claimed inventions — met the legal threshold for the on-sale bar, rendering the asserted patents invalid on that ground.

Legal Significance

This outcome reinforces that the on-sale bar remains a potent invalidity defense, even for patents with complex prosecution histories and multiple continuation applications. The Federal Circuit’s willingness to reverse a summary judgment determination on this issue signals close appellate scrutiny of how district courts assess pre-filing commercial activity.

The case also illustrates the risk of continuation patent strategies when early commercialization of core technology precedes certain continuation filings. Patent families spanning multiple applications — as here, with four patents across different application numbers — may still face § 102(b) exposure if foundational commercial activity occurred before the earliest effective filing date.

Strategic Takeaways

For Patent Holders:

• Conduct rigorous pre-filing audits of all commercial activity — including prototype demonstrations, offers for sale, and licensing discussions — before filing foundational applications.
• Carefully document invention reduction-to-practice timelines relative to any commercial activity.
• Continuation filing strategies must account for the on-sale bar with respect to each continuation’s effective filing date.

For Accused Infringers:

• The on-sale bar is a viable and fully dispositive invalidity defense. Invest in thorough pre-suit investigation of the patent holder’s commercial history.
• Summary judgment on validity grounds, while difficult to obtain, can eliminate multi-patent cases entirely — as this case demonstrates.
• Appellate strategy matters: Belvac’s persistence through appeal converted a summary judgment loss at the district level into a complete case victory.

For R&D Teams:

• Pre-commercial activities — including beta deployments, customer demonstrations, or informal sales discussions — can inadvertently trigger on-sale bar exposure. Establish clear IP-gating processes before any customer-facing activity involving novel technology.

Industry & Competitive Implications

The beverage can manufacturing sector relies heavily on proprietary machinery innovations, with companies like Belvac competing on technological performance. A Crown Packaging victory could have required Belvac to design around or license necking technology central to its product line — with downstream effects on can manufacturers relying on Belvac equipment.

With judgment entered for Belvac, the competitive landscape for aluminum can necking machinery remains open. No injunction was issued, and Belvac faces no licensing obligation based on these four patents. For Crown Packaging and CarnaudMetalbox, the outcome forecloses this particular enforcement avenue, potentially prompting a reassessment of portfolio prosecution strategies for related can-forming technologies.

More broadly, this case reflects a trend of defendants leveraging validity challenges — rather than non-infringement defenses alone — to achieve complete dispositions in complex machinery patent cases. IP professionals monitoring the packaging and industrial equipment sectors should note this case as a reference point for on-sale bar strategy.

❓ FAQ

What patents were involved in Crown Packaging v. Belvac?

Four U.S. patents: US7770425B2, US9308570B2, US9968982B2, and US10751784B2, covering beverage can necking machinery technology.

What was the basis for Belvac’s victory?

The Federal Circuit held that the on-sale bar under 35 U.S.C. § 102(b) applied, invalidating Crown Packaging’s patents. The district court vacated its prior summary judgment for Crown and entered final judgment for Belvac.

How might this verdict affect beverage can machinery patent litigation?

It reinforces the on-sale bar as a decisive invalidity defense in industrial machinery cases and highlights appellate scrutiny of summary judgment rulings favorable to patent holders.