ATX Networks (Toronto) Corp. v. Technetix, Inc.

CourtDistrict Court, D. Colorado
DecidedApril 21, 2025
Docket1:24-cv-01391
StatusUnknown

This text of ATX Networks (Toronto) Corp. v. Technetix, Inc. (ATX Networks (Toronto) Corp. v. Technetix, Inc.) is published on Counsel Stack Legal Research, covering District Court, D. Colorado primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
ATX Networks (Toronto) Corp. v. Technetix, Inc., (D. Colo. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLORADO

Civil Action No. 24-cv-01391-SKC-KAS

ATX NETWORKS (TORONTO) CORP.

Plaintiff,

v.

TECHNETIX, INC.

Defendant. _____________________________________________________________________

ORDER _____________________________________________________________________ ENTERED BY MAGISTRATE JUDGE KATHRYN A. STARNELLA This matter is before the Court on Defendant’s Motion to Compel Plaintiff to Supplement its Infringement Contentions [#47] (the “Motion”). Plaintiff filed a Response [#49] in opposition to the Motion [#47], and no reply briefs were permitted. On January 27, 2025, the Court held a discovery dispute hearing at which Defendant presented a slide deck of demonstratives. The Motion [#47] has been referred to the undersigned, see [#48]. The Court has reviewed the briefing, the parties’ pre-discovery dispute hearing emails and submissions, the January 27, 2025 hearing transcript [#60]1, the entire case file, and the applicable law. For the following reasons, the Motion [#47] is GRANTED.

1 Two versions of the January 27, 2025 hearing transcript have been filed on the docket, one by Patterson Transcription Company and one by AB Litigation Services, and both under restriction. See Patterson Hearing Tr. [#59]; AB Hearing Tr. [#60]. For consistency, in this Order, the Court will cite to the AB Hearing Transcript [#60]. I. Background In this matter, Plaintiff sues Defendant for allegedly infringing its patent for a “Chockless Power Coupler”, as described in U.S. Patent No. 8,149,070 (the ‘070 Patent). See Am. Compl. [#20] at 2, ¶ 8. The patent relates to “a multi tap device used in cable

television systems to deliver audio, video, and data through a coaxial cable network to and from cable television subscribers.” Id. at 3, ¶ 11. It does so “via multi tap boxes connected along a main coaxial line that redirect and route a small portion of the radio frequency signal—i.e., ‘tap’—to a cable television subscriber, while simultaneously allowing most of the radio frequency signal to continue along the main coaxial line to other multi tap boxes and subscribers.” Id., ¶ 12. However, use of more multi-tap boxes along a main line causes increased loss of signal, degrading the service quality of the signal delivered to subscribers. Id., ¶ 13. As Plaintiff’s counsel explained at the hearing, “what these devices generally do is . . . send a signal to your home in a way that doesn’t flatten or reduce the signal so that we can have signal down the way.” See AB Hearing Tr. [#60]

at 5:23-6:1. Plaintiff contends that the OTTZ 1.8 GHz outdoor multitap product (the “Accused Product”), which Defendant allegedly makes, uses, sells, offers for sale, and/or imports, infringes the ‘070 patent. Am. Compl. [#20] at 3, ¶ 15. Plaintiff also alleges that Defendant makes, uses, sells, offers for sale, and/or imports other multitap products such as the XFO Faceplate-Only 1.8 GHz Upgrade Motorola Multitap product. Id. at 4, ¶ 18. Claims 1, 13, and 21 of the ‘070 Patent cover a BALUN (as Defendant puts it, “a conventional adapter for converting signals that are ‘balanced’ to signals that are ‘unbalanced’”)2 and the “method for tapping part of an RF signal from a combined RF and

2 The Institute of Electrical and Electronics Engineers (IEEE) has defined the term “balun” similarly: “A passive device having distributed electrical constants to couple a balanced system AC signal” using a BALUN. See ‘070 Patent [#20-1] at 26-28; Motion [#47] at 23. As relevant here, the three claims recite two signals—a “first signal” with a frequency range of “up to 15 A and 50 to 60 Hz AC signal” and a “second signal” with a frequency range of “at least 5 MHz to 3000 MHz RF”—and define the length of the BALUN relative to the

wavelength of those signals: “wherein the length of said BALUN is about ½ wavelength of the highest frequency of the frequency range of said second signal[.]” ‘070 Patent at 26-27 (Claim 1), 27 (Claim 13), 28 (Claim 21). On November 7, 2024, Plaintiff disclosed infringement contentions. See Motion [#47] at 2; Infringement Contentions [#47-1]. Relative to these three claims, Plaintiff asserts that “upon information and belief” the Accused Product “includes a BALUN with a length that is about ½ wavelength of the highest frequency of the frequency range of said second signal” and provides a general equation for calculating wavelength before asserting that “the balun is a ferrite material, which will impact the values in this equation.” Infringement Contentions [#47-1] at 10; see also id. at 24, 47. However, the Infringement

Contentions [#47-1] do not specifically describe the length of the BALUN in the accused device. Instead, they say that “upon information and belief, [the length] may be [or “is”] between approximately 0.5 cm to 2.0 cm.” Id. at 12, 26, 48. Plaintiff does not explain how the ferrite material affects the wavelength calculation. Cf. AB Hearing Tr. [#60] at 25:18-

or device to an unbalanced system or device. Note: the term is derived from balance to unbalance transformer.” United States v. RMS Elecs., Inc., 624 F.2d 1081, n.1 (C.C.P.A. 1980) (quoting IEEE Standard Dictionary of Electrical & Electronics Terms (2d ed.)).

3 Page number citations refer to the numbering used by the Court’s CM/ECF docketing system and not to the document’s original numbering. 21 (arguing that the relevant infringement contention “doesn’t state . . . what’s the length of a particular structure, and why does that length meet the claim”). On December 10, 2024, in an email to the undersigned’s Chambers, Defendant counsel raised a discovery dispute over the sufficiency of these infringement contentions.

See Minute Order [#43] at 1. The Court set a discovery hearing and a briefing schedule in advance of the hearing. Id. In its opening brief, which was docketed as the current Motion [#47], Defendant argued that the Court should compel Plaintiff to supplement these infringement contentions because they are not specific and do not identify the structures alleged to infringe or otherwise articulate any basis for the alleged infringement. See Motion [#47] at 3-5. The Court heard oral argument from both sides at the January 27, 2025 hearing. See AB Hearing Tr. [#60] at 22:9-56:18. II. Legal Standard Under D.C.COLO.LPtR 4(a),4 a party claiming patent infringement “shall serve Infringement Contentions identifying with specificity each accused product or process (the

‘Accused Instrumentality’).” The party must also serve a claim chart for each Accused Instrumentality, which “shall be specific and shall contain . . . [i]dentification of the specific location of each limitation of the claim within the Accused Instrumentality[.]” D.C.COLO.LPtR 4(b)(2). While “the Local Patent Rules governing patent contentions operate somewhat like initial disclosures under Rule 26 of the Federal Rules of Civil Procedure, the two sets of rules serve distinct purposes.” Well Master Corp. v. Flowco Prod. Sols., LLC, No. 21-cv-

4 Because few written decisions regarding the requirements of D.C.COLO.LPtR 4 exist, the Court accepts the parties’ invitation to consider case law from other jurisdictions with similar rules. See Motion [#47] at 3-4; Response [#49] at 3. 02145-CMA-KAS, 2024 WL 1281450, at *3 (D. Colo. Mar. 26, 2024).

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ATX Networks (Toronto) Corp. v. Technetix, Inc., Counsel Stack Legal Research, https://law.counselstack.com/opinion/atx-networks-toronto-corp-v-technetix-inc-cod-2025.