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Monolithic Says O2 Micro 'Buried' Patent Examiner

Law360 (May 6, 2009, 12:00 AM EDT) -- Monolithic Power Systems Inc. has added another set of allegations in its long-running circuit patent spat with rival O2 Micro International Ltd., accusing the company of “burying” a patent examiner in over 10,000 pages of documents in order to camouflage an allegedly weak patent application.

In a second amended complaint filed Tuesday in the U.S. District Court for the Northern District of California, MPS said that O2’s submission of thousands of pages of references in a patent application amounted to inequitable conduct. The two have been...
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