Abaxis, Inc. (“Abaxis”) filed a patent infringement action against Cepheid asserting that Cepheid infringed four of Abaxis’ patents. In its answer, Cepheid asserted a defense of inequitable conduct and Abaxis moved to dismiss the defense. The United States District Court for the Northern District of California granted the motion.
In support of the inequitable conduct defense, Cepheid alleged that the patent prosecutor knowingly and intentionally failed to disclose to the United States Patent and Trademark Office (“PTO”) material prior art during the prosecution of the patents. Cepheid also explained that the undisclosed prior art anticipated and/or rendered the patents obvious and, therefore, the patents would not have issued had the prior art been before the PTO. Cepheid also alleged that the patent prosecutor made statements to the PTO during the patent prosecution to distinguish prior art cited by the by the PTO that were knowingly false in light of the information withheld from the PTO and “but for” these statements and the withholding of the material prior art the patents would not have issued.
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