DCT

5:26-cv-00750

Alien Processing LLC v. Podtronix Inc

Log In
Key Events
Amended Complaint
complaint Intelligence

I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 5:26-cv-00750, C.D. Cal., 04/24/2026
  • Venue Allegations: Venue is alleged to be proper in the Central District of California because the Defendant, Podtronix, Inc., is a resident of the district with its principal place of business located there.
  • Core Dispute: Plaintiff alleges that Defendant's modular extraction booths infringe a patent related to a closed oil extraction booth with an integrated safety ventilation system.
  • Technical Context: The technology concerns modular, enclosed environments designed for the safe use of flammable and hazardous solvents in oil extraction processes, a critical component in industries such as botanical and cannabis extraction.
  • Key Procedural History: The asserted patent was assigned to Plaintiff on January 4, 2024. The complaint notes that Plaintiff maintains a virtual patent marking webpage that identifies the asserted patent as covering its own modular extraction booths, which may be relevant to questions of notice.

Case Timeline

Date Event
2016-04-09 U.S. Patent No. 10,232,286 Priority Date
2018-01-01 Defendant allegedly began selling the Accused Products (stated as "since at least 2018")
2019-03-19 U.S. Patent No. 10,232,286 Issue Date
2024-01-04 U.S. Patent No. 10,232,286 assigned to Plaintiff
2026-04-24 Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 10,232,286 - "Closed oil extraction booth with integrated ventilation system"

  • Patent Identification: U.S. Patent No. 10,232,286 ("ʼ286 Patent"), issued March 19, 2019.

The Invention Explained

  • Problem Addressed: The patent describes the problem of safely handling hazardous and flammable solvents during oil extraction from materials like plants ʼ286 Patent, col. 1:21-30 Constructing or retrofitting facilities with the required explosion-proof equipment, specialized ventilation, and monitoring systems is described as expensive ʼ286 Patent, col. 1:47-49
  • The Patented Solution: The ʼ286 Patent discloses a self-contained, modular extraction booth that provides a safe working environment without requiring expensive, intrinsically safe equipment inside the booth ʼ286 Patent, col. 2:50-54 The solution involves assembling the booth from prefabricated panels, locating all electrical equipment outside the enclosure, and using a specific ventilation system designed to capture heavier-than-air gases by drawing air from near the floor level ʼ286 Patent, col. 3:7-18 The system also includes a gas monitoring system that can automatically increase ventilation speed or trigger alarms if hazardous conditions are detected ʼ286 Patent, col. 6:10-21
  • Technical Importance: The invention offers a portable, cost-effective, and compliant solution for conducting solvent-based extraction, potentially lowering the barrier to entry and improving safety compared to building permanent, hazardous-rated facilities ʼ286 Patent, col. 4:16-19

Key Claims at a Glance

  • The complaint asserts infringement of at least independent Claim 1 Compl. ¶28
  • The essential elements of independent Claim 1 include:
    • An oil extraction booth comprising a plurality of pre-fabricated wall and ceiling panels, and a door.
    • A ventilation system with an air intake and an exhaust system.
    • The exhaust system includes a "vertical exhaust duct" with a "lower end proximate to a floor," an "exhaust vent in the lower end of the exhaust duct," and an "exhaust fan" located externally.
    • Ports in the walls to allow piping from external equipment.
    • An external electrical panel to control the external equipment.
    • A monitoring system with at least one sensor inside the booth and a monitor programmed to provide an alarm when gas or liquid concentration exceeds a predetermined level.

III. The Accused Instrumentality

Product Identification

The accused instrumentalities are the "C1D1 & C2D2 Extraction Labs and Enclosures" sold by Podtronix, Inc. Compl. ¶18

Functionality and Market Context

The complaint describes the accused products as "Prefabricated UL Certified C1D1 Extraction Labs for plant oil extraction" Compl. ¶19 They are presented as modular, customizable units that can be disassembled and moved Compl. ¶30 Functionally, they are alleged to include an "optimized airflow design with dual speed for added safety," an "Exhaust Plenum," an external exhaust fan, an external control panel, and a gas monitoring system that alerts users to unsafe gas levels Compl. ¶33 Compl. ¶35 Compl. ¶¶40-41 The complaint includes a diagram from the defendant's website depicting the features of a "Pre-Fabricated Modular C1D1 Extraction Lab," which identifies components such as a "Gas Sensor," "Exhaust Plenum," and "Control Panel" Compl. ¶35

IV. Analysis of Infringement Allegations

'286 Patent Infringement Allegations

Claim Element (from Independent Claim 1) Alleged Infringing Functionality Complaint Citation Patent Citation
a plurality of pre-fabricated wall panels; The accused device is described as comprising "pre-fabricated wall panels." The complaint provides photographs from the defendant's website showing these panels. ¶30 col. 7:19
a plurality of pre-fabricated ceiling panels; The accused device is alleged to comprise "pre-fabricated ceiling panels," supported by images from the defendant's website. ¶31 col. 7:21
a door; The accused device is alleged to have a door, as shown in website photographs. ¶32 col. 7:22
a ventilation system configured to remove air from the booth... The accused device is alleged to have a ventilation system, citing website claims of an "optimized airflow design." ¶33 col. 7:23-24
an air intake configured to pass filtered air into the booth; The accused device allegedly has an intake fan on the ceiling to pass filtered air into the booth. The complaint includes a schematic diagram from the defendant's website showing the "Intake Fan." ¶34 col. 7:25-26
a vertical exhaust duct secured to a wall panel and having an open upper end at or above the ceiling panels and a lower end proximate to a floor; The accused device is alleged to have an "Exhaust Plenum" that functions as the claimed duct. This allegation is supported by a website diagram and FAQ text referencing an "exhaust plenum, and exhaust duct." ¶35 col. 7:27-30
an exhaust vent in the lower end of the exhaust duct; The complaint alleges on information and belief that an exhaust vent must be included at the lower end of the accused plenum/duct to allow upwards airflow, as solvent vapors are denser than air. ¶37 col. 7:31
an exhaust fan coupled to the upper end of the exhaust duct external to the booth above the ceiling panels; The accused device is alleged to include an external exhaust fan above the ceiling panels, as depicted in a website schematic. ¶38 col. 7:32-34
ports in one or more wall panels through which piping from equipment located outside the booth passes; The accused device is alleged to include ports for piping from external equipment, as shown in website photographs. ¶39 col. 7:35-37
an electrical panel secured to the outside of a wall panel configured to control the equipment located outside the booth; An external electrical panel is alleged to be part of the accused device, as shown in a website photograph. The complaint provides a photo from the defendant's website showing an electrical panel mounted on the exterior of the booth. ¶40 col. 7:38-40
a monitoring system... The accused device is alleged to have a monitoring system with a gas sensor. The complaint includes a diagram from the defendant's website showing the "Gas Sensor" inside the booth. ¶41 col. 7:41-42
at least one sensor sensitive to the presence of one or more gases or liquids within the booth; The accused device's "Gas Sensor" is alleged to satisfy this limitation. ¶41 col. 7:43-45
a monitor to which the at least one sensor is coupled and programmed to provide an alarm when the concentration of the one or more gases or liquids exceeds a first predetermined level. The accused device's monitoring system allegedly activates strobe lights and an audible alarm when the 25% Lower Flammable Limit ("LFL") is exceeded, which the complaint asserts meets this limitation. ¶42 col. 7:46-50

Identified Points of Contention

  • Evidentiary Questions: The complaint's allegations for the "vertical exhaust duct" and "exhaust vent" limitations appear to rely on inference rather than direct evidence. The complaint argues that an "Exhaust Plenum" is disclosed Compl. ¶35 and that a vent at its lower end "should be understood" to exist for functional reasons Compl. ¶37 A key point of contention may be whether Plaintiff can provide sufficient factual evidence to support these inferential claims, or if they will be challenged as speculative.
  • Scope Questions: The dispute may center on whether the accused "Exhaust Plenum" Compl. ¶35 falls within the scope of the claimed "vertical exhaust duct... having... a lower end proximate to a floor." The defense could argue that its plenum is a general-purpose component that is structurally and functionally different from the specific floor-level vapor-capturing duct described in the patent ʼ286 Patent, col. 3:16-18

V. Key Claim Terms for Construction

  • The Term: "a vertical exhaust duct... having... a lower end proximate to a floor"
  • Context and Importance: This term is critical because the patent's safety rationale is based on removing heavier-than-air solvent vapors that collect near the floor ('286 Patent, col. 3:16-18). The infringement case hinges on whether the accused product's "Exhaust Plenum" Compl. ¶35 meets this specific structural and locational requirement. Practitioners may focus on this term because the complaint's evidence appears to show a plenum, but its exact proximity to the floor and its function as a floor-level intake are not explicitly detailed.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The patent specification describes the exhaust vent as being located "low on an opposite wall" '286 Patent, col. 3:9-10, which a plaintiff might argue supports a general, less restrictive interpretation of "proximate."
    • Evidence for a Narrower Interpretation: The specification provides a specific example where the exhaust vent is "located 12 inches above the floor" '286 Patent, col. 4:4-6 A defendant may argue this specific embodiment limits the term "proximate" to a narrow range near the floor. Furthermore, the stated purpose of this configuration is to "enhance[] the sweep flow of air through the booth... and the capture of heavier-than-air gases" ('286 Patent, col. 3:16-18), suggesting a functional requirement that may not be met by a general-purpose plenum.

VI. Other Allegations

Indirect Infringement

The complaint does not contain specific counts or factual allegations for indirect infringement (inducement or contributory infringement).

Willful Infringement

The complaint alleges that the defendant has been aware of the '286 Patent at least since the filing of the complaint, which could support a claim for post-filing willful infringement Compl. ¶43 The complaint also alleges that the plaintiff provides public notice of its patent coverage via a virtual patent marking page, which lists the '286 Patent Compl. ¶44 This fact may be used to argue that the defendant had pre-suit knowledge of the patent, a potential basis for enhanced damages.

VII. Analyst's Conclusion: Key Questions for the Case

  1. A central issue will be one of evidentiary sufficiency: can the plaintiff prove, through means other than the inference presented in the complaint Compl. ¶37, that the accused "Exhaust Plenum" contains a distinct "exhaust vent in the lower end of the exhaust duct," or will the lack of direct, pre-suit evidence for this element undermine the infringement claim?
  2. The case may also turn on a question of definitional scope: will the term "vertical exhaust duct... with a lower end proximate to a floor" be construed broadly to read on a general exhaust plenum, or will it be construed narrowly to require a specific structure designed to capture heavier-than-air gases from the floor level, as functionally described in the patent's background ('286 Patent, col. 3:16-18)?
Loading Amended Complaint