On May 27, 2015, the Board issued a final written decision in Organik Kimya AS v. Rohm & Hass Co., IPR2014-00185, confirming the patentability of all challenged claims of U.S. Patent No. 6,020,435. The ‘435 patent is directed to a chemical process for preparing low-density “hollow” or “voided” multi-stage emulsion polymers used in coating compositions … Continue Reading
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