Digital Realty Trust, Inc.

I'll research the company and the litigation context.

Company overview. Digital Realty Trust, Inc. (NYSE: DLR) is a Maryland-incorporated real estate investment trust founded March 9, 2004, with principal executive offices in Austin, Texas (historically cited in Dallas and San Francisco). It holds a controlling interest in its operating partnership, Digital Realty Trust, L.P., through which it owns and operates its data center business. It is a public company with no parent; it is the parent of the operating partnership entities that are co-defendants in the case below. Recent third-party data puts headcount around 4,300 and market capitalization in the $60–75 billion range, with trailing revenue near $6 billion.

Products / services / operations. Digital Realty is an operating company, not an NPE. It owns, acquires, develops, and operates data centers and sells colocation, wholesale leasing, and interconnection services, including its ServiceFabric connectivity platform and its EkkoSoft Critical data-center optimization/management software. Its portfolio spans roughly 300+ data centers across North America, Europe, Latin America, Africa, Asia, Australia, and Canada, serving cloud, network, AI, financial services, digital media, healthcare, and gaming customers. Notable expansion included the 2020 acquisition of Interxion.

Patent-litigation posture. The tracked data show one case and no others: Digital Realty appears solely as a defendant, with zero plaintiff-side suits. That profile is consistent with an operating company defending against third-party patent assertions rather than a two-way litigant or an NPE. The single tracked matter was filed in the U.S. District Court for the Eastern District of Texas, Marshall Division — a plaintiff-friendly venue — before Judge Rodney Gilstrap.

Notable cases / context. In Valtrus Innovations Ltd. v. Digital Realty Trust, Inc. et al. (E.D. Tex., Marshall Div.), Valtrus Innovations Ltd. and Key Patent Innovations Ltd. — Irish entities holding a portfolio acquired from Hewlett Packard Enterprise — asserted data-center cooling, atmospheric-control, and thermal-management patents against Digital Realty's operated data centers (including DFW11 and DFW26 in Texas) and its EkkoSoft Critical software. A January 2025 joint motion resulted in dismissal with prejudice of the claims against Digital Realty only, while related lead-case claims against other defendants remained active. Valtrus is characterized in filings as a successor-in-interest licensing vehicle for the HPE portfolio, with Key Patent Innovations and New PP Licensing LLC as corporate parents — a structure typical of patent-assertion entities.