2:24-cv-00548
BuzzBallz LLC v. MPL Brands NV Inc
I. Executive Summary and Procedural Information
- Parties & Counsel:- Plaintiff: BuzzBallz, LLC (Texas)
- Defendant: MPL Brands NV, Inc. d/b/a PATCO BRANDS (Nevada)
- Plaintiff’s Counsel: Campbell & Williams; Haynes and Boone, LLP
 
- Case Identification: 2:24-cv-00548, D. Nev., 03/20/2024
- Venue Allegations: Venue is alleged to be proper because Defendant is incorporated in Nevada, maintains a registered agent in the state, and has allegedly committed acts of patent infringement within the district.
- Core Dispute: Plaintiff alleges that Defendant’s "Big Sipz" ready-to-drink beverage containers infringe a patent related to the specific design and construction of a container with a plastic body and a metal pop-top lid.
- Technical Context: The technology concerns single-serve beverage packaging, specifically the combination of a uniquely shaped, molded plastic body with a conventional, easy-open metal lid, a design prevalent in the ready-to-drink cocktail market.
- Key Procedural History: The patent-in-suit issued on March 19, 2024, and this complaint was filed the following day. The patent was assigned by the inventor to the Plaintiff on March 20, 2024. The complaint does not allege any pre-suit notice or litigation history between the parties.
Case Timeline
| Date | Event | 
|---|---|
| 2010-04-19 | Earliest Priority Date for '441 Patent | 
| 2022-Q4 | Defendant began marketing "Big Sipz" products | 
| 2024-03-19 | U.S. Patent No. 11,932,441 Issues | 
| 2024-03-20 | Complaint Filed | 
II. Technology and Patent(s)-in-Suit Analysis
- Patent Identification: U.S. Patent No. 11,932,441, "Container," issued March 19, 2024 (the “’441 Patent”).
The Invention Explained
- Problem Addressed: The patent’s background section identifies a market challenge: while metal cans with "easy-open-end" lids are popular with consumers, metal is difficult and expensive to form into novel shapes. This limits the ability to create aesthetically attractive or distinctive packaging compared to what is possible with moldable plastics. (’441 Patent, col. 1:24-40).
- The Patented Solution: The invention is a hybrid container that combines a molded plastic body with a metal pop-top lid. (’441 Patent, col. 2:16-22). The specification describes a container with a distinct, rounded body shape, a defined neck and lip structure for sealing the metal lid, and a base with specific depressions. (’441 Patent, col. 2:22-42; Fig. 1). This combination aims to provide the design flexibility of plastic while retaining the functionality and consumer familiarity of a metal pop-top lid.
- Technical Importance: This design allows for the creation of beverage containers with unique, brand-identifying shapes that are difficult to achieve with traditional all-metal canning processes. (’441 Patent, col. 1:36-40).
Key Claims at a Glance
- The complaint asserts independent Claim 1. (Compl. ¶19).
- Claim 1 is a product claim that recites a highly detailed container structure, with key elements including:- A container body made of resin and a lid made of metal.
- The body includes a side wall and a base portion with an upwardly extending depression that defines an outline.
- A "center element" in the base is centered relative to both the outline and the container side wall.
- A series of specific dimensional relationships, such as the opening’s diameter being less than the middle portion’s, and the base’s diameter being less than the middle portion’s.
- A "stemless" body, which is explicitly defined by the lower portion of the side wall having a diameter greater than the base portion.
- A specific lid structure with two concentric circular shapes, a pivotable arm, and a weakened area for opening.
- A precise set of three distinct angular relationships defined between the upper, middle, and lower portions of the container side wall relative to the bottom of the base portion.
- A continuous interior, and a seal formed between the lid and a lip on the container body.
 
- The complaint states that Defendant infringes "one or more claims... including, but not limited to, Claim 1." (Compl. ¶24).
III. The Accused Instrumentality
Product Identification
Defendant’s "Big Sipz" line of ready-to-drink alcoholic cocktails. (Compl. ¶15).
Functionality and Market Context
The complaint alleges the accused products are "truncated, round, plastic containers with aluminum pop-top lids." (Compl. ¶15). The complaint provides images showing four varieties of the "Big Sipz" product, each in a rounded container with a metal lid. (Compl. ¶16, p. 8). The complaint alleges that Defendant began marketing and selling these products in the fourth quarter of 2022, placing them in direct competition with Plaintiff’s products. (Compl. ¶15, ¶7). The complaint provides images of four different "Big Sipz" products, showing their generally round shape and pop-top lids (Compl. ¶16, p. 8).
IV. Analysis of Infringement Allegations
The complaint references an attached claim chart (Exhibit B) to illustrate infringement, but this exhibit was not included with the publicly filed complaint. (Compl. ¶17). The narrative infringement theory presented in the complaint is summarized below.
The complaint alleges that Defendant’s "Big Sipz" products directly infringe at least Claim 1 of the ’441 Patent. (Compl. ¶18). The core of the allegation is that the accused products are structurally equivalent to the patented invention, comprising a "container body and lid having the features, structural elements, and materials as recited in Claim 1." (Compl. ¶19). The infringement is asserted to be either literal or under the doctrine of equivalents. (Compl. ¶20).
- Identified Points of Contention:- Technical Questions: The infringement analysis will depend on a highly granular comparison of the accused product's physical structure against the numerous limitations of Claim 1. A central question will be whether the "Big Sipz" container meets every specific geometric and relational requirement. For instance, does the accused container’s side wall exhibit the three distinct and ordered angular relationships relative to its base as mandated by the claim? (’441 Patent, col. 5:44-64).
- Scope Questions: Claim 1 contains over twenty distinct limitations. The defense may focus on arguing that even a minor deviation from any one of these detailed structural requirements—such as the precise concentricity of the lid’s circular shapes or the specific definition of the "center element" in the base—is sufficient to prove non-infringement. (’441 Patent, col. 4:18-25, col. 4:56-65).
 
V. Key Claim Terms for Construction
- The Term: "stemless" - Context and Importance: The claim recites "thereby rendering the container body stemless." (’441 Patent, col. 4:44-45). Practitioners may focus on this term because the patent appears to act as its own lexicographer, defining "stemless" not by its ordinary meaning but by a specific geometric condition: "a lower portion of the container side wall... being greater in diameter than the base portion." (’441 Patent, col. 4:40-44). The dispute will hinge on whether the accused product's geometry satisfies this precise definition.
- Intrinsic Evidence for Interpretation:- Evidence for a Broader Interpretation: A party could argue the term should be given its plain meaning of simply lacking a stem, but this is likely to be a weak argument given the explicit definitional language in the claim.
- Evidence for a Narrower Interpretation: The claim language itself provides the narrow definition. The phrase "thereby rendering" directly links the term "stemless" to the preceding structural limitation, suggesting the definition is self-contained within the claim. (’441 Patent, col. 4:44-45). Figure 1, which shows a continuously curved, bowl-like container, further supports this interpretation. (’441 Patent, Fig. 1).
 
 
- The Term: "...the first angle is an acute angle; the third angle is an obtuse angle; the second angle is greater than the first angle; and the third angle is greater than the second angle" - Context and Importance: This set of limitations defines the specific curvature of the container wall. It is not a single term but a complex relational definition that will be critical to the infringement analysis. The central issue for construction will be establishing a clear, repeatable methodology for identifying the "upper," "middle," and "lower" portions of the side wall and measuring their respective angles relative to the "bottom of the base portion."
- Intrinsic Evidence for Interpretation:- Evidence for a Broader Interpretation: A party might argue for some flexibility in defining the boundaries between the upper, middle, and lower portions of the side wall, which are not explicitly demarcated in the specification.
- Evidence for a Narrower Interpretation: The claim language is highly specific and mathematical. A party will argue that these are strict, testable conditions. Figure 8 provides a detailed mechanical drawing with specific radii (e.g., "R48," "R12"), which could be used to argue for a very precise and non-flexible interpretation of the container's required shape and the resulting angles. (’441 Patent, Fig. 8).
 
 
VI. Other Allegations
- Indirect Infringement: The complaint makes no allegations of indirect infringement.
- Willful Infringement: The complaint alleges willful infringement based on Defendant's continuation of infringing activities after being served with the complaint. It explicitly states that Defendant possessed "actual knowledge of the '441 Patent and infringement... at least since Defendant was served a copy of this Complaint." (Compl. ¶27). This allegation is based purely on post-filing conduct.
VII. Analyst’s Conclusion: Key Questions for the Case
- A core issue will be one of technical conformity: can the plaintiff demonstrate that the accused "Big Sipz" container meets every one of the numerous and highly specific geometric, dimensional, and relational limitations recited in Claim 1? The sheer quantity of these limitations provides the defendant with multiple potential avenues to argue for non-infringement based on even minor structural differences.
- A key question for damages will be the impact of timing. Because the patent issued only one day prior to the filing of the suit, recoverable damages are limited to acts of infringement occurring on or after the issue date. This raises the question of how a reasonable royalty can be established for past damages that accrued over an extremely short period and how that will influence the strategic considerations for both parties moving forward.