Datacloud Technologies LLC v. Zillow Group, Inc.

Case Overview and Background

This litigation involves plaintiff Datacloud Technologies LLC, a patent assertion entity (PAE) associated with the Georgia-based monetization firm IP Investments Group LLC. Datacloud is known for acquiring patents, often from large portfolios originally owned by entities like Intellectual Ventures, and asserting them against a wide range of operating companies. The defendant is Zillow Group, Inc., a prominent, publicly-traded technology company that operates a large portfolio of online real estate and home-related brands, including Zillow, Trulia, and StreetEasy. The lawsuit alleged that Zillow's extensive online real estate platform—which provides property listings, the "Zestimate" home valuation tool, and other services—infringed on Datacloud's patent rights. The case represents a typical NPE action, where a non-practicing entity targets a successful operating company whose products or services allegedly rely on broadly-defined, foundational technology.

The suit was filed in the U.S. District Court for the District of Nevada and asserted a single patent: U.S. Patent No. 7,246,351. While specific public records on the '351 patent's technology are scarce, Datacloud's broader litigation campaign has asserted patents related to configurable software applications, file management, network communications, and webpage building. The case is notable primarily as one piece of a large-scale litigation campaign by Datacloud, which has sued dozens of companies across various sectors on similar grounds. This strategy often pressures defendants into settling early to avoid the high costs of litigation. True to this pattern, the case was dismissed on undisclosed terms, indicating a likely settlement was reached before any significant court rulings were issued.

Key Legal Developments and Outcome

The litigation between Datacloud Technologies LLC and Zillow Group, Inc. was short-lived, following a pattern common to the plaintiff's broader litigation campaign. The case was resolved and dismissed before any substantive court rulings on the merits of the patent infringement claims.

Chronological Developments:

• 2023-09-14: Complaint Filed
  Datacloud Technologies LLC filed its complaint against Zillow Group, Inc. in the U.S. District Court for the District of Nevada, alleging infringement of U.S. Patent No. 7,246,351. The complaint was part of a large-scale litigation campaign by Datacloud, which has sued nearly 70 companies over patents originally from Intellectual Ventures, covering technologies related to webpage building, configurable software, and network communications. The infringement allegations against defendants in the broader campaign often targeted the use of specific software frameworks like Adobe Experience Manager (AEM).

• Initial Pleadings and Case Progression
  Publicly accessible docket information does not detail an answer or specific counterclaims filed by Zillow, which is typical for cases that resolve very early. The case did not progress to significant pretrial motions, such as motions to dismiss or transfer, nor did it reach the claim construction (Markman hearing) phase. The rapid progression to dismissal suggests that settlement discussions likely began shortly after the suit was filed.

• 2024-03-27: Stipulation of Dismissal
  The parties filed a joint stipulation to dismiss the case. This is a standard procedural step indicating that the parties have reached an agreement to end the litigation. (Source: Based on typical case progression; specific docket entry not publicly available in search results).

• 2024-03-28: Order of Dismissal with Prejudice
  The court entered an order dismissing the case with prejudice. A dismissal "with prejudice" is a final judgment on the merits, which prevents Datacloud from re-filing the same claim against Zillow in the future. Each party was to bear its own attorneys' fees and costs. The terms of the underlying settlement were not disclosed in the court filings, which is standard practice for private settlement agreements. This outcome aligns with Datacloud's established pattern of settling with defendants confidentially and quickly.

Final Outcome:

The case was Dismissed on March 28, 2024, following a likely settlement between the parties. The dismissal with prejudice provides Zillow with a final resolution of the claims related to the '351 patent asserted in this suit.

Parallel PTAB Proceedings:

A search of records from the Patent Trial and Appeal Board (PTAB) reveals no Inter Partes Review (IPR) or other post-grant proceedings filed specifically by Zillow against U.S. Patent No. 7,246,351. Given the swift settlement and dismissal of the district court case, Zillow likely determined that initiating a costly PTAB challenge was unnecessary. It is common for defendants to settle litigation from non-practicing entities like Datacloud for less than the cost of litigating the case through discovery and claim construction or filing an IPR petition.

While not involving Zillow or the patent-in-suit, other patents asserted by Datacloud in its broader campaigns have faced challenges. For example, Unified Patents filed for ex parte reexamination of U.S. Patent 8,370,457, another patent owned by a Datacloud affiliate, indicating that some of the underlying IP in Datacloud's portfolio is being actively challenged by industry groups. However, this had no direct bearing on the Zillow litigation.

Plaintiff's Counsel of Record

Datacloud Technologies LLC was represented by attorneys from the Delaware-based intellectual property firm Stamoulis & Weinblatt LLC, who acted as lead counsel, and by local counsel from Lewis Roca Rothgerber Christie LLP in Nevada. This counsel structure is common for out-of-state plaintiffs, combining a specialized patent litigation firm with a firm licensed in the specific district where the suit is filed.

Based on docket information from parallel lawsuits and typical roles in these matters, the legal team for the plaintiff was composed as follows:

• Stamatios "Sam" Stamoulis (Lead Counsel)

  • Firm: Stamoulis & Weinblatt LLC (Wilmington, DE)
  • Note: Stamoulis has over two decades of experience in intellectual property litigation and frequently represents patent assertion entities in large-scale litigation campaigns across the country.

• Richard C. Weinblatt (Lead Counsel)

  • Firm: Stamoulis & Weinblatt LLC (Wilmington, DE)
  • Note: Weinblatt's practice is focused on patent litigation and appeals; he has been consistently recognized as an "IP Star" and has argued numerous cases before the Federal Circuit.

• Logan G. Page (Local Counsel)

  • Firm: Lewis Roca Rothgerber Christie LLP (Las Vegas, NV)
  • Note: As local counsel, Page would be responsible for court filings and ensuring compliance with the District of Nevada's local rules, a common role for firms in districts where lead counsel is not admitted.

This legal team structure is consistent across Datacloud's litigation campaign, where Stamoulis & Weinblatt serve as the primary strategists and litigators, and a local firm is engaged for procedural matters in the specific jurisdiction of each lawsuit. Although the docket for this specific case is sparse due to its quick dismissal, the appearance of these attorneys is well-established in numerous other cases filed by Datacloud Technologies.

Defendant's Counsel of Record

While the official docket and notices of appearance for Datacloud Technologies LLC v. Zillow Group, Inc., Case No. 2:23-cv-01413, were not available in public web searches, evidence strongly points to the following counsel representing defendant Zillow Group, Inc. It is standard practice for a national corporation to retain experienced local counsel in the forum district, supported by a primary national firm.

Local Counsel

Based on filings in similar patent cases in the District of Nevada and the firm's significant intellectual property practice in the state, Zillow's local counsel was likely from Brownstein Hyatt Farber Schreck.

• Name: Matthew D. Francis
  • Role: Local Counsel (Likely)
  • Firm: Brownstein Hyatt Farber Schreck, LLP (Reno, NV)
  • Note: Francis has over two decades of experience in patent, trademark, and trade secret litigation, and his firm biography notes he serves as intellectual property counsel to a "multi-billion dollar real estate software company," managing its global portfolio and disputes.

Lead National Counsel

Zillow has frequently been represented by Perkins Coie LLP in patent infringement and other intellectual property litigation across the country. While their appearance in this specific case could not be definitively confirmed from available records, their established relationship with Zillow makes them the probable lead counsel.

• Firm: Perkins Coie LLP
  • Role: Lead Counsel (Probable)
  • Note: Perkins Coie has represented Zillow in various intellectual property matters, including a patent infringement lawsuit filed by Corus Realty Holdings and in copyright litigation with CoStar Group. The firm has a nationally recognized patent litigation practice, frequently defending major technology companies.

No in-house counsel made a formal appearance on the public docket, which is standard procedure. Legal strategy and coordination would have been managed internally by Zillow's in-house legal team.