Patent & IP news archive

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;

Plaintiffs

v.
Rocky Mountain Oilfield Services
Nilles Law Firm; Fargo, ND
William P. Harrie

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.

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Case documents (PDF)

Fig. 1 from 8,171,993

8,171,993 figure 1
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