DCT

2:26-cv-00801

Valtrus Innovations Ltd v. 365 Data Centers Holdings LLC

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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 3:26-cv-02755, N.D. Tex., 08/18/2026
  • Venue Allegations: Venue is alleged to be proper based on Defendants operating a data center in Richardson, Texas, which constitutes a regular and established place of business where acts of infringement have allegedly occurred.
  • Core Dispute: Plaintiffs allege that Defendants’ operation of data centers, specifically their methods and systems for cooling, infringes three patents related to data center energy management and environmental control.
  • Technical Context: The patents relate to technologies for efficiently cooling data centers, a critical operational component, by dynamically adjusting cooling based on real-time thermal conditions rather than using static, "worst-case scenario" cooling.
  • Key Procedural History: The complaint states that Plaintiffs notified Defendants of the alleged infringement via a letter on January 9, 2025, which included claim charts for the asserted patents. Subsequent licensing discussions were unsuccessful. The complaint also notes a strategic decision not to assert one of the patents ('’287 Patent) against Defendants' use of Vertiv equipment, based on a representation made in separate, pending litigation in another district.

Case Timeline

Date Event
2002-04-17 U.S. Patent No. 6,718,277 Priority Date
2002-08-02 U.S. Patent No. 6,854,287 Priority Date
2003-01-16 U.S. Patent No. 6,868,682 Priority Date
2004-04-06 U.S. Patent No. 6,718,277 Issued
2005-02-15 U.S. Patent No. 6,854,287 Issued
2005-03-22 U.S. Patent No. 6,868,682 Issued
2014-03 Defendants allegedly began using the "365 Data Center" trademark
2025-01-09 Plaintiffs sent pre-suit notification letter to Defendants
2026-08-18 Complaint Filed

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

U.S. Patent No. 6,854,287 - “Cooling System,” issued February 15, 2005 (’287 Patent)

The Invention Explained

  • Problem Addressed: The patent describes conventional data center cooling as inefficient, as it typically operates at or near maximum capacity continuously, regardless of the actual, distributed heat load within the facility ʼ287 Patent, col. 2:10-15 This "worst-case scenario" approach results in unnecessarily high operating expenses ʼ287 Patent, col. 2:25-29
  • The Patented Solution: The invention proposes a more dynamic and localized cooling system. It uses a plurality of heat exchanger units (HEUs), each supplied with a cooling fluid, to deliver cooled air to computer racks ʼ287 Patent, abstract The system senses temperatures at various locations in the room and, in response, controls both the temperature of the cooling fluid and the delivery of cooled air, for instance by "individually manipulating a mass flow rate of the cooling fluid supplied to each" HEU ʼ287 Patent, col. 2:32-44 ʼ287 Patent, claim 1 This allows cooling to be matched to specific, localized needs.
  • Technical Importance: This approach represents a shift from brute-force, room-level cooling to a more intelligent, zonal cooling strategy, aiming to reduce energy consumption by delivering cooling resources only where and when needed.

Key Claims at a Glance

  • The complaint asserts infringement of at least claim 1 Compl. ¶30
  • Independent claim 1 of the ’287 Patent includes these essential elements:
    • A method for cooling a room with computer systems.
    • Providing multiple heat exchanger units (HEUs) that receive and deliver air.
    • Supplying the HEUs with cooling fluid from an air conditioning unit.
    • Cooling the air via heat exchange with the cooling fluid in the HEUs.
    • Sensing temperatures at one or more locations in the room.
    • Controlling the cooling fluid temperature and/or the air delivery in response to sensed temperatures.
    • Wherein controlling air delivery comprises "individually manipulating a mass flow rate of the cooling fluid supplied to each of the plurality of heat exchanger units."

U.S. Patent No. 6,868,682 - “Agent Based Control Method and System for Energy Management,” issued March 22, 2005 (’682 Patent)

The Invention Explained

  • Problem Addressed: Similar to the ’287 Patent, the background addresses the inefficiency of conventional data center cooling, noting that systems typically measure ambient temperature only at the main cooling unit, not where the heat-producing equipment is actually located, leading to wasted energy (ʼ’682 Patent, col. 2:21-30).
  • The Patented Solution: The patent proposes a distributed control system using a "hierarchy of agents" to manage energy ʼ682 Patent, abstract These software agents operate at different levels: "rack agents" monitor individual racks, "row agents" manage rows of racks, and "CRAC agents" control the main Computer Room Air Conditioning units ʼ682 Patent, Fig. 4 If a lower-level agent (e.g., a rack agent) cannot meet its thermal objectives autonomously, it requests assistance from the next agent up in the hierarchy, allowing for a scalable and coordinated response to changing cooling needs ʼ682 Patent, col. 4:13-30
  • Technical Importance: This "agent-based" model introduces a sophisticated, multi-tiered software control layer to data center cooling, enabling autonomous, parallel, and cooperative management of thermal conditions.

Key Claims at a Glance

  • The complaint asserts infringement of at least claim 1 Compl. p. 8
  • Independent claim 1 of the ’682 Patent includes these essential elements:
    • A method of controlling temperature in a data center.
    • Receiving sensory data corresponding to a temperature from a subsystem.
    • Processing the sensory data by a "first agent in a hierarchy of agents" to determine if the subsystem is within a predetermined temperature range.
    • Adjusting a cooling fluid delivery rate using the first agent to maintain the temperature.
    • Requesting a "second agent from the hierarchy of agents" to process the data if the first agent cannot maintain the temperature, unless the second agent "redistributes the cooling fluid."

Multi-Patent Capsule

  • Patent Identification: U.S. Patent No. 6,718,277, “Atmospheric Control Within a Building,” issued April 6, 2004 (’’277 Patent).
  • Technology Synopsis: The patent addresses inefficient cooling from inaccurate temperature monitoring ʼ277 Patent, col. 2:35-41 The solution involves sensing atmospheric parameters at various locations, generating an "empirical atmospheric map" of the environment, comparing this real-time map to a "template atmospheric map" (e.g., an ideal or modeled state), identifying differences (such as "hot spots"), and determining corrective action to vary the conditioned fluid supply accordingly ʼ277 Patent, abstract ʼ277 Patent, col. 6:1-17
  • Asserted Claims: At least claim 1 is asserted Compl. ¶36
  • Accused Features: The complaint alleges that Defendants’ use of cooling equipment and software from suppliers like Stulz, Schneider Electric, and others to control atmospheric conditions infringes the ’277 Patent Compl. ¶36

III. The Accused Instrumentality

Product Identification

The accused instrumentalities are the data centers owned and operated by the Defendants Compl. ¶20 The infringement allegations are directed at the methods of cooling performed within these data centers, using equipment and software from various suppliers including Vertiv (Liebert), Stulz, Schneider Electric, Trane, and DataAire Compl. ¶¶21-23

Functionality and Market Context

The complaint alleges Defendants operate colocation data centers in 16 U.S. markets Compl. ¶20 The functionality at issue is the implementation of cooling systems to manage the thermal environment for computer equipment. The complaint provides a screenshot of a marketing statement from Defendants' website for their Marlborough data center. This visual highlights the use of "780-tons of Liebert cooling on the raised floors" Compl. ¶21 The complaint alleges Defendants use this equipment to perform infringing methods of cooling Compl. ¶20 Compl. ¶21

IV. Analysis of Infringement Allegations

The complaint references exemplary claim charts attached as exhibits to support its infringement allegations Compl. ¶30 Compl. p. 8 Compl. ¶36 However, these exhibits were not included with the filed complaint document. The analysis below is based on the narrative infringement theory presented in the complaint.

’287 Patent Infringement Allegations

The complaint alleges that Defendants infringed claim 1 of the ’287 Patent by "performing methods of cooling its data centers" using equipment from suppliers such as Stulz, Schneider Electric, Trane, and others Compl. ¶30 The core of this infringement theory appears to be that Defendants' cooling systems, as implemented, practice the claimed steps of sensing temperatures and responsively controlling cooling fluid and/or air delivery to different parts of the data center Compl. ¶29 Compl. ¶30

’682 Patent Infringement Allegations

The complaint alleges infringement of claim 1 of the ’682 Patent through Defendants' use of "cooling equipment and control software from at least Vertiv and Stulz" to perform methods of cooling Compl. ¶33 The infringement theory is that these systems control temperature based on sensory data in a manner that maps onto the claimed "agent based control method" Compl. ¶32 Compl. ¶33 This suggests an allegation that the control software used by Defendants implements a hierarchical and distributed logic akin to the "hierarchy of agents" described in the patent.

Identified Points of Contention

  • Scope Questions: A central question for the ’682 Patent will be whether the control software used in Defendants' data centers can be characterized as a "hierarchy of agents" as the patent defines that term. The analysis may focus on whether the accused systems feature distinct software modules with the specific autonomous and cooperative behaviors claimed. For the ’277 Patent, a question may be whether Defendants' systems generate and compare thermal "maps" or if they use a less sophisticated control logic.
  • Technical Questions: For the ’287 Patent, a key factual question is whether Defendants' systems perform "individually manipulating a mass flow rate of the cooling fluid supplied to each" HEU. The case may require evidence showing whether the accused cooling systems have the capability for such granular, individualized control over each cooling unit, or if they operate on a more aggregated, zone-based level.

V. Key Claim Terms for Construction

The Term: "individually manipulating a mass flow rate" (from ’287 Patent, claim 1)

  • Context and Importance: This term is central to the claimed method of targeted cooling. The infringement analysis will likely depend on whether Defendants' systems are capable of this granular level of control for each cooling unit. Practitioners may focus on this term because it distinguishes a truly dynamic, zonal system from one that simply adjusts overall cooling capacity.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The specification discusses varying the output of the cooling system in a general sense, which could support a broader reading that does not require a one-to-one hardware controller for every HEU ʼ287 Patent, col. 4:56-59
    • Evidence for a Narrower Interpretation: Claim 1 specifies manipulation for "each of the plurality of heat exchanger units." Figure 3, showing separate valves (40) and pumps (38) that can control fluid to different HEUs, may support a narrower construction requiring distinct control over each unit ʼ287 Patent, Fig. 3 ʼ287 Patent, col. 7:42-47

The Term: "hierarchy of agents" (from ’682 Patent, claim 1)

  • Context and Importance: This term defines the core architectural novelty of the ’682 Patent. Whether the accused control software embodies such a structure will be a dispositive issue. Practitioners may focus on this term because it appears to require a specific, multi-tiered software structure, not just any form of distributed control.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The specification describes agents as a way to "better monitor events by processing information in parallel at different points," which could be argued to cover any distributed control architecture ʼ682 Patent, col. 4:13-16
    • Evidence for a Narrower Interpretation: The patent explicitly describes and diagrams a three-tiered structure of "rack agents," "row agents," and "CRAC agents," where lower-level agents escalate issues to higher-level agents ʼ682 Patent, Fig. 4 ʼ682 Patent, col. 13:9-14 This detailed description could support a narrow construction requiring this specific tiered and escalatory relationship.

VI. Other Allegations

Indirect Infringement

The complaint does not plead separate counts for indirect infringement and lacks specific factual allegations regarding Defendants' knowledge or intent to induce infringement by third parties. The allegations focus on Defendants' direct performance of the claimed methods Compl. ¶30 Compl. ¶33 Compl. ¶36

Willful Infringement

The complaint alleges that Plaintiffs provided Defendants with pre-suit notice of infringement on January 9, 2025, via a letter that included "claim charts demonstrating infringement of seven patents, including the ’287 Patent, ’682 Patent, and ’277 Patent" Compl. ¶25 This allegation of actual, pre-suit knowledge of the patents and the infringement allegations forms the basis for a potential willfulness finding. The prayer for relief also requests a finding that this is an "exceptional case" under 35 U.S.C. § 285 Compl. Prayer D

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

  1. A central issue will be one of definitional scope: Can the control software and systems used in Defendants' data centers be properly characterized as implementing a "hierarchy of agents" as required by the ’682 patent, or generating and comparing "atmospheric maps" as required by the ’277 patent? The resolution will depend on whether these terms are construed broadly to cover general distributed control logic or narrowly to require the specific architectures detailed in the patents.
  2. A key evidentiary question will be one of functional operation: Does the evidence show that Defendants' cooling systems actually perform the "individually manipulating a mass flow rate" for each cooling unit, as claimed in the ’287 patent? This will likely require technical discovery into the specific hardware and software capabilities of the accused cooling infrastructure.
  3. A third question relates to damages and willfulness: Given the allegation of a pre-suit notification letter that included detailed claim charts Compl. ¶25, a significant focus may be on whether Defendants' continued operation of their data centers after this date constituted willful infringement, which could expose them to enhanced damages.