Telefonaktiebolaget LM Ericsson (publ) — commonly "Ericsson" — is a Swedish multinational founded in 1876 by Lars Magnus Ericsson and incorporated in its present form in 1918. Headquarters are at Torshamnsgatan 21, Kista, Stockholm. It is publicly listed on Nasdaq Stockholm (ERIC A/B) and Nasdaq New York (ERIC). Per its 2025 Form 20-F, Ericsson had 88,826 employees and revenue of SEK 236.7 billion (roughly USD 24 billion), with R&D spending of SEK 48.9 billion.
Operations. Ericsson supplies mobile-network infrastructure, software, and services to communications service providers, enterprises, and the public sector. Reported segments are Networks; Cloud Software and Services; Enterprise; and Other. Its portfolio includes radio access network gear (antennas, radios, RAN compute, RAN software), core-network and OSS/BSS software, network design/optimization and managed services, private 5G and enterprise wireless WAN offerings, and the Vonage communications-platform business. Ericsson states its patent portfolio exceeds 60,000 granted patents, licensed globally on FRAND terms — it is a major licensor as well as a manufacturer.
Litigation posture. In the tracked data, Ericsson appears once, strictly as a defendant (0 plaintiff, 1 defendant), consistent with an operating company targeted by an outside patent holder rather than an NPE asserting an acquired portfolio. The sole tracked matter was filed in the plaintiff-friendly Eastern District of Texas, Tyler Division.
Notable case. Fenner Investments, Ltd. v. Juniper Networks, Inc. et al., filed January 6, 2005. Fenner — a non-practicing patent holder — sued a roster of networking and telecom vendors; the complaint was amended on May 17, 2005 to add Ericsson Inc., Ericsson AB, and Telefonaktiebolaget LM Ericsson. Fenner asserted U.S. Patent Nos. 5,561,706 and 6,819,670, directed to radio-frequency communication switching and mobile-user call access. The case was litigated through claim construction and substantial discovery; Ericsson's counsel of record was Thompson & Knight. Fenner separately pursued the '706 patent against Verizon Wireless, where the district court found non-infringement in 2013.
Note: the absence of Ericsson-as-plaintiff cases in the tracked set reflects database coverage limits, not Ericsson's actual assertion activity; the company is widely known to enforce its standards-essential patent portfolio.