Legal Opinion
New Railhead Manufacturing, L.L.C. v. Vermeer Manufacturing Company, and Earth Tool Company, L.L.C.
Court of Appeals for the Federal Circuit
Decided September 25, 2002No. 02-1028PublishedCited by 59 opinions
1Opinion of the Court
*1292MICHEL, Circuit Judge.
Plaintiff-Appellant New Railhead Manufacturing, L.L.C. (“New Railhead”) owns United States Patent Nos. 5,899,283 (“the '283 patent”) and 5,950,743 (“the '743 patent”), drawn to a drill bit for horizontal directional drilling of rock formations and a method for horizontal directional drilling, respectively. New Railhead sued Vermeer Manufacturing Company (“Vermeer”) and Earth Tool Company, L.L.C. (“Earth Tool”), for infringement in the United States District Court for the Northern District of Texas based upon their manufacture and distribution, respectively, of a…
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