2:20-cv-06177
Imprenta Services Inc v. Nicholas Patrick Karll
I. Executive Summary and Procedural Information
- Parties & Counsel:- Plaintiff: Imprenta Services, Inc. (Texas) and Mike Sanchez (Texas)
- Defendant: Nicholas Patrick Karll (California) and Eco Packaging Solutions (California)
- Plaintiff’s Counsel: Frederic M. Douglas
 
- Case Identification: 2:20-cv-06177, C.D. Cal., 07/10/2020
- Venue Allegations: Venue is asserted as proper in the Central District of California because the Defendants maintain a principal place of business within the district.
- Core Dispute: Plaintiffs, a packaging manufacturer and its president, seek a declaratory judgment that they do not infringe Defendants' patent, that the patent is unenforceable due to inequitable conduct, and that Plaintiffs' president is the rightful inventor of the technology-in-suit.
- Technical Context: The technology concerns multi-component, child-resistant caps for recyclable metal containers, a product category relevant to industries, such as the cannabis market, that require specialized, compliant packaging.
- Key Procedural History: The lawsuit was initiated by the Plaintiffs in response to a cease and desist letter sent by Defendants on the same day the patent-in-suit issued. The complaint's central allegations of incorrect inventorship and inequitable conduct are based on a series of email communications and design proposals between the parties that predate the patent's earliest filing date, suggesting a dispute arising from a prior business collaboration.
Case Timeline
| Date | Event | 
|---|---|
| 2018-01-05 | Defendant Karll signs a quotation from Plaintiff Imprenta for a container with a "debossed plate glued" inside the lid. | 
| 2018-01-12 | Plaintiff Sanchez emails an "improved design" to Defendant Karll, allegedly omitting the glued plate. | 
| 2018-04-12 | Earliest priority date for U.S. Patent No. 10,513,375. | 
| 2019-12-24 | U.S. Patent No. 10,513,375 issues. | 
| 2019-12-24 | Defendants' counsel sends a letter to Plaintiffs asserting infringement of the ’375 Patent. | 
| 2020-07-10 | Complaint for Declaratory Judgment filed. | 
II. Technology and Patent(s)-in-Suit Analysis
U.S. Patent No. 10,513,375 - "Metal Child Resistant Container"
Issued December 24, 2019 (’375 Patent)
The Invention Explained
- Problem Addressed: The patent identifies shortcomings in existing child-resistant packaging, such as plastic containers that are not easily recyclable or single-use packages that cannot be resealed. It notes a need for an improved, recyclable metal container that is user-friendly, cost-effective, and meets child-resistance certification requirements while also better preserving the contents from UV light or chemical leaching. (’375 Patent, col. 2:30-67).
- The Patented Solution: The invention is a child-resistant container featuring a multi-part cap assembly. The assembly includes a metal outer cap, a metal inner cap, and a "metal plate" fixed between them. (’375 Patent, col. 23:12-21). To open the container, a user must perform two actions: first, apply downward pressure to the outer cap to engage a set of couplers (e.g., a tongue on the plate engaging a groove on the inner cap), and second, twist the now-engaged assembly to unscrew it from the container body. (’375 Patent, Abstract; Fig. 3C). This push-and-turn mechanism prevents children from easily opening the container, as simply spinning the outer cap will not disengage the lid.
- Technical Importance: This design purports to combine the benefits of metal packaging (recyclability, durability, content preservation) with a robust, multi-action child-resistance feature suitable for regulated consumer goods. (’375 Patent, col. 2:7-16).
Key Claims at a Glance
- The complaint identifies independent claims 1 and 18 as being at issue (Compl. ¶21).
- Independent Claim 1 recites the following essential elements:- A container body and a cap assembly.
- The cap assembly includes a metal inner cap and a metal outer cap.
- A "metal plate" is disposed between the inner and outer caps and is "rotationally and axially fixed relative to the outer cap."
- A "first coupler" (a groove) is coupled to the inner cap.
- A "second coupler" (a tongue) is coupled to the metal plate.
- The couplers engage when the outer cap is moved to a "second position" (e.g., pushed down), which rotationally fixes the inner and outer caps to each other.
 
- The complaint does not specify any dependent claims.
III. The Accused Instrumentality
Product Identification
The products at issue are Plaintiffs' "unique products that serve as metal child-resistant containers with novel cap assemblies" (Compl. ¶¶6, 11). The Defendants' cease-and-desist letter characterizes them as "purportedly child-resistant metal containers that you are marketing and selling to customers in the cannabis industry" (Compl. Ex. D, p. 27).
Functionality and Market Context
The complaint alleges the Plaintiffs' products differ from the patented invention in a key respect: they "fail to incorporate... a metal plate as described in Claims 1 and 18" (Compl. ¶21). Plaintiffs' theory appears to be that their design, which they allege was conceived by Mike Sanchez, achieves child resistance without the specific "metal plate" structure claimed in the ’375 Patent. The complaint includes a technical drawing from a 2018 email, showing an exploded view of a multi-part container lid with components labeled in red and yellow, which Plaintiffs allege represents their own improved design (Compl. Ex. B, p. 17).
IV. Analysis of Infringement Allegations
This is a declaratory judgment action for non-infringement. The following chart summarizes the Plaintiffs' core non-infringement argument as presented in the complaint.
’375 Patent Infringement Allegations
| Claim Element (from Independent Claim 1) | Alleged Infringing Functionality | Complaint Citation | Patent Citation | 
|---|---|---|---|
| a metal plate disposed between the inner cap and the outer cap, wherein the plate is rotationally and axially fixed relative to the outer cap; | Plaintiff alleges its products do not contain this feature, stating its containers "fail to incorporate... a metal plate as described in Claims 1 and 18." | ¶21 | col. 23:18-21 | 
| [Remaining elements of Claim 1] | The complaint does not provide sufficient detail for analysis of how Plaintiffs' products relate to the other limitations of Claim 1. | N/A | N/A | 
Identified Points of Contention
- Scope Questions: The primary dispute for non-infringement will be whether the structure of Plaintiffs' container lid falls within the scope of the claim term "a metal plate... fixed relative to the outer cap." The case may explore whether a component in Plaintiffs' product, which they may characterize differently (e.g., as a "second inner lid" per Compl. ¶14), is the legal equivalent of the claimed "metal plate."
- Technical Questions: A key factual question will be the comparison between the design allegedly created by Plaintiff Sanchez (Compl. Ex. B) and the invention claimed in the ’375 Patent. Evidence will be required to establish the precise structure and functionality of Plaintiffs' container lids to determine if they indeed lack the claimed "metal plate" or a structural equivalent.
V. Key Claim Terms for Construction
The Term
"a metal plate disposed between the inner cap and the outer cap"
Context and Importance
The definition of this term is central to both the non-infringement and inventorship disputes. Plaintiffs' non-infringement defense is explicitly based on the absence of this element (Compl. ¶21). Furthermore, the dispute over whether Plaintiff Sanchez invented this feature will depend on whether his proposed design (Compl. Ex. B) is found to disclose this claimed element. Practitioners may focus on this term because its interpretation could resolve the infringement question and heavily influence the inventorship and inequitable conduct claims.
Intrinsic Evidence for Interpretation
- Evidence for a Broader Interpretation: The specification suggests the "plate" is not limited to a simple flat disk. It states that the plate (110) "can be or include a third cap, such as a middle cap" and can be a "disk, cap (e.g., middle cap) or other structure." (’375 Patent, col. 13:4-6, 17-19). Defendants may use this language to argue that Plaintiffs' "second inner lid" is merely a different name for the claimed "metal plate."
- Evidence for a Narrower Interpretation: Claim 1 requires the plate to be "rotationally and axially fixed relative to the outer cap." Plaintiffs may argue their design does not meet this functional requirement. The patent figures, such as Figure 6, depict the plate (110) as a discrete component distinct from the inner cap (105) and outer cap (102), which could support an argument that a structure integrated differently is not the same "plate."
VI. Other Allegations
Indirect Infringement
Plaintiffs make a blanket denial of any indirect or contributory infringement (Compl. ¶22). The pre-suit letter from Defendants' counsel accuses Plaintiffs of "encouraging or inducing others to do any of the foregoing" (Compl. Ex. D, p. 27).
Willful Infringement
The Defendants' cease-and-desist letter alleges that infringement was willful, stating that Plaintiffs' products "appear to have been knowingly and willfully copied" (Compl. Ex. D, p. 27). This allegation establishes pre-suit knowledge.
Inequitable Conduct and Incorrect Inventorship
The complaint contains significant additional allegations beyond non-infringement.
- Inequitable Conduct: Plaintiffs allege that Defendant Karll knew of the "inventive contributions and printed publications of Mike Sanchez" but "intentionally omitted disclosing Plaintiffs' contributions" to the U.S. Patent and Trademark Office during prosecution (Compl. ¶¶8, 25, 27).
- Incorrect Inventorship: Plaintiffs allege that Mike Sanchez is the "first, true, and original inventor" or, in the alternative, a co-inventor of the subject matter claimed in the ’375 Patent. This claim is based on allegations that Sanchez conceived of the invention and disclosed it in a January 12, 2018 email to Karll, which predates the patent's earliest priority date of April 12, 2018 (Compl. ¶¶14, 16, 31).
VII. Analyst’s Conclusion: Key Questions for the Case
- A central issue will be one of priority and inventorship: does the evidence, particularly the January 12, 2018 email and attachment (Compl. Ex. B), demonstrate that Plaintiff Mike Sanchez conceived of the invention claimed in the ’375 Patent and communicated it to Defendant Nicholas Karll before the patent's priority date? The resolution of the incorrect inventorship and inequitable conduct claims depends entirely on the answer.
- The infringement analysis will turn on a question of claim construction and factual equivalence: can the claim term "a metal plate," defined in the patent as being "fixed relative to the outer cap," be construed to read on the specific multi-part lid configuration used in Plaintiffs' products, which they contend lacks such a plate?