Viken Detection Corporation v. Videray Technologies, Inc.

District Court, D. Massachusetts·Decided September 12, 2025·No. 1:24-cv-11375·Unknown

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF MASSACHUSETTS ___________________________________ ) VIKEN DETECTION CORPORATION, ) ) Plaintiff, ) ) Civil Action v. ) No. 24-cv-11375-PBS ) VIDERAY TECHNOLOGIES INC. and ) PAUL E. BRADSHAW, ) ) Defendants. ) )

MEMORANDUM AND ORDER

September 12, 2025

Saris, J. INTRODUCTION Plaintiff Viken Detection Corporation (“Viken”) and Defendant Videray Technologies Inc. (“Videray”) are competitors in the x- ray scanner market. After Defendant Paul E. Bradshaw left his employment at Viken to establish Videray in 2017, Viken sued Videray and Bradshaw (together, “Defendants”) for misappropriation of trade secrets and confidential information. The parties settled that dispute in 2020 via a settlement agreement containing general releases. Almost four years later, Viken filed this suit against Defendants to challenge the inventorship and ownership of U.S. Patent No. 11,940,395 (“the ’395 patent”), which lists Bradshaw as the inventor and Videray as the assignee. Viken primarily alleges that one of its employees conceived of the invention claimed in the ’395 patent while he and Bradshaw were working together at Viken. Viken also seeks to rescind the 2020 settlement agreement

based on alleged fraudulent misrepresentations made by Defendants that induced Viken to enter into the agreement. Defendants now move to dismiss Viken’s amended complaint under Federal Rules of Civil Procedure 12(b)(1) and 12(b)(6). Defendants contend that Viken released its inventorship and ownership claims in the 2020 settlement agreement and that, as a result, Viken lacks a concrete stake in the adjudication of those claims. Additionally, Defendants argue that Viken’s rescission claim is untimely and, alternatively, fails to state a plausible basis for relief. After hearing, the Court ALLOWS Defendants’ motion to dismiss (Dkt. 26).

BACKGROUND The Court draws the following background from the well- pleaded facts in Viken’s amended complaint, documents attached to or incorporated by reference into the amended complaint, and facts subject to judicial notice. See Cheng v. Neumann, 51 F.4th 438, 441 (1st Cir. 2022). I. The Invention Backscatter x-ray imaging is an approach for detecting

contraband in hidden areas, such as behind a solid panel of a vehicle. Backscatter instruments direct a narrow x-ray beam at a solid surface and create an image from x-rays that reflect off items on the surface’s back side. Such instruments generally

include components that focus the x-rays emitted by the x-ray source into a narrow beam useful for scanning. One of these components is a chopper wheel, which rotates when the instrument is producing x-ray energy. The chopper wheel has slits that create a “pencil beam” of x-ray energy. ’395 patent at 1:43-45. Because the slits are small compared to the chopper wheel’s overall surface area, the x-rays hit a solid region and scatter off the wheel for most of its rotation. These scattered x-rays travel in various directions, including parallel to the wheel. To protect the user from these scattered x-rays, the chopper wheel and certain other components are surrounded by a metallic housing. Backscatter instruments have long used tungsten and

tungsten alloys for the housing because those metals effectively shield significant amounts of the scattered x-ray energy. Tungsten is, however, a rare and expensive metal. The ’395 patent teaches a chopper wheel design that reduces the scattered x-ray energy that hits the housing and, thus, allows for use of a more common metal for the housing. To do so, the patent uses “a labyrinth design” with two “projections” on inner and outer locations on the wheel. Id. at 2:52-60. These projections “increase[] x-ray energy attenuation of x-rays scattered from the chopper wheel before the x-ray energy reaches the housing.” Id. at 2:55-57. With this design, the housing can be made of a cheaper and lighter metal than tungsten, such as brass, but will still

significantly limit the x-ray energy that escapes the instrument. Claim 1 of the ’395 patent recites in relevant part: a chopper wheel having a planar surface configured to face in a direction of the collimator, a central axis, a plurality of slits in the planar surface, the plurality of slits extending in a radially-outward direction relative to the central axis, a first projection extending from the planar surface in a direction of the collimator, the first projection located radially- outward of the plurality of slits and provided for 360 degrees about the central axis, and a second projection extending from the planar surface in the direction of the collimator, the second projection located radially inward of the plurality of slits and provided for 360 degrees about the central axis . . . .

Id. at 8:1-13.

II. Conception of the Invention

Viken, a corporation headquartered in Massachusetts, develops x-ray instruments used to detect illegal contraband. Bradshaw worked at Viken as a mechanical engineer from November 2013 until his termination in May or June 2017. In his employment agreement with Viken, Bradshaw assigned to Viken all rights to any invention that he made, conceived, or reduced to practice while working at the company and that was related to or useful in the company’s business. While employed at Viken, Bradshaw worked on a handheld x-ray scanner with another Viken engineer named Mark Hamilton. In April 2017, Hamilton recommended to Bradshaw that they include chopper wheel projections on their prototype. An entry in Hamilton’s laboratory notebook dated that month depicts a chopper wheel with

two projections on the wheel’s inner and outer portions. Bradshaw rejected Hamilton’s idea on the basis that the necessary production efforts and delays would outweigh the utility of the projections. III. Bradshaw’s Patent Applications and Litigation Between the Parties

Bradshaw founded Videray shortly after his termination from Viken. In August 2019, Bradshaw filed a provisional patent application for a chopper wheel design with projections. On July 28, 2020, he filed a Patent Cooperation Treaty (“PCT”) application for the same invention. The World Intellectual Property Organization (“WIPO”) published Bradshaw’s PCT application on February 11, 2021.1 While Bradshaw was pursuing his patent applications, he and Videray were engaged in ongoing litigation with Viken. In 2019, Viken filed two lawsuits against Defendants for misappropriation

1 Although the amended complaint does not allege when WIPO published the PCT application, Viken does not dispute that the Court may take judicial notice of the publication date from the face of the application. See Khoja v. Orexigen Therapeutics, Inc., 899 F.3d 988, 1001-02 (9th Cir. 2018) (affirming the district court’s judicial noticing of the filing date of a WIPO patent application); Mizuho Orthopedic Sys., Inc. v. Allen Med. Sys., Inc., 610 F. Supp. 3d 367, 379 n.1 (D. Mass. 2022) (recognizing that courts may take judicial notice of patent applications). In any event, the Court’s rationale for dismissing Viken’s claims does not turn on the date of publication of the PCT application. of its trade secrets and confidential information in connection with Defendants’ PX1 device. Defendants’ PX1 and PXUltra products practice the chopper wheel projection invention. In a discovery

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Viken Detection Corporation v. Videray Technologies, Inc., (D. Mass. 2025).

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