Complaint for Declaratory Judgement
Civil Action No. 4:13-cv-00010-DLH-CSM, the Hon. Daniel L. Hovland presiding.
Filed on Jan. 14, 2013 in the U.S. District Court for the District of North Dakota;

Patents in case

• 8,171,993: “Water heating apparatus for continuous heated water flow and method for use in hydraulic fracturing” by Hefley. Prosecuted by Garvey, Smith, Nehrbass & North, L.L.C. Nehrbass; Seth M. Brignac; Len R.. Includes 99 claims (8 indep.). Was application 12/842,738. Granted 5/8/2012.