In this patent infringement action, Plaintiff Total Rebuild (“Total”) asserted that Defendant PHC (“PHC”) infringed claims of United States Patent No. 8,146,428 (“the ’428 Patent”), which is directed to systems and methods for safely testing devices and components under high-pressure. The district court conducted a bench trial on inequitable conduct and concluded that the patent was invalid for several reasons.
First, the district court noted that the inventor, Mr. Lavergne, had a duty to disclose material information to the United States Patent and Trademark Office (“USPTO”). The district concluded that material prior art had been withheld because certain devices had been offered for sale prior to the August 8, 2007, which was one year prior to the earliest application (the “Critical Date”). The district court explained that: “Here, the Cameron MTSs, Haliburton MTS, and Superior MTS were prior art under 35 U.S.C. § 102(b) because it was an offer for sale, sale, or public use by Total, Cameron, Haliburton, or Superior of a pressure testing system prior to the Critical Date. Furthermore, the offer for sale, sale, or public use of the Cameron MTSs, Haliburton MTS, and Superior MTS was material to the patentability of the ’428 Patent because claim 1 and claim 16 would not have issued had the sale been disclosed to the USPTO. This is especially true in view of the broadest reasonable interpretation and preponderance of the evidence standards that apply to the materiality prong of claims for inequitable conduct.”
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In evaluating the motion, the district court explained that a “noninfringing alternative need not be on the market during the infringement period to factor into a lost profits analysis.” Wechsler v. Macke Intern. Trade, Inc., 486 F.3d 1286, 1298 (Fed. Cir. 2007). But the district court also noted that where an alleged non-infringing alternative was not on the market during the relevant time period, “a trial court may reasonably infer that it was not available as a non-infringing substitute at that time. The accused infringer then has the burden to overcome this inference by showing that the substitute was available.” Grain Processing, 185 F.3d at 1353 (citation omitted). Moreover, “[t]he acceptable substitute element, though it is to be considered, must be viewed with limited influence where infringer knowingly made and sold the patented product for years while ignoring the substitute.” Panduit, 575 F.2d at 1162, n.9.