Fisher-Rosemount Systems, Inc. is a U.S. subsidiary of Emerson Electric Co. (NYSE: EMR). It sits within Emerson's process-automation business — historically branded Emerson Process Management and now Emerson Automation Solutions. The Fisher-Rosemount name dates to 1993, when Emerson (which had acquired Fisher from Monsanto in 1992) structured the "Fisher-Rosemount family of companies" into eight divisions, of which Fisher-Rosemount Systems was one; the parent business was renamed Emerson Process Management in 2001, though the legal entity persists. Headquarters references include Austin/Round Rock, Texas, and a Durham, North Carolina registration address. As a subsidiary, it does not file its own financials or ticker; patent-database listings band its headcount at roughly 1,000–10,000.
Operations. It is an operating company, not an NPE. It supplies process-control and automation systems for continuous-process industries — oil and gas, refining, chemicals, power, life sciences, food and beverage, metals and mining. Its principal offerings include the DeltaV distributed control system, the Ovation control platform, the PlantWeb digital plant architecture, AMS Suite asset-management software, and Syncade operations-management software, integrated with Emerson field instrumentation and Fisher final-control (valve) products. It also provides engineering, project-execution and consulting services.
Litigation posture. In the tracked data it appears once, solely as a defendant and never as a plaintiff — the classic profile of an operating company targeted rather than an assertion entity. The single suit was filed in the plaintiff-friendly U.S. District Court for the Eastern District of Texas, Tyler Division.
Notable case. SIPCO, LLC et al. v. Emerson Electric Co. et al. (E.D. Tex., filed Oct. 16, 2015) named Fisher-Rosemount Systems alongside its parent Emerson as defendants. SIPCO is a well-known patent-assertion entity that litigated wireless-mesh and remote-monitoring patents against numerous industrial and utility operating companies; the case's technology focus aligns with Emerson's wireless field-instrumentation and remote-monitoring offerings. No merits determination is asserted here.
I could not independently verify Fisher-Rosemount Systems' standalone revenue or current employee count; those figures roll into Emerson's consolidated reporting.