Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Ackyung Petrochemical Co., Ltd. Patents Assignee: Ackyung Petrochemical Co., Ltd. Address: Seoul, KR No. of patents: 1 Patents: Patent Number Title Of Patent Date Issued 7427579 Hydrogenation catalyst, preparation thereof, and method for the preparation of gamma-butyrolacto September 23, 2008 The present invention relates to a hydrogenation catalyst represented by the following formula 1, a method for the preparation thereof, and a method for preparing gamma-butyrolactone using this catalyst. The method for preparing gamma-butyrolactone from maleic anhydride using the cat       Recently Added Patents Method of measuring gas flow Electrical switch Chair Apparatus and techniques for reducing the effects of general anesthetics Apparatus, system, and method for booting using an external disk through a virtual SCSI connection Systems and methods for software distribution using distribution policies Method and arrangement for purifying exhaust gas in an internal combustion engine   Randomly Featured Patents Method for shrinking a clock cycle when testing high speed microprocessor designs Method to calculate hot-electron test voltage differential for assessing microprocessor reliability Device for impulse-pressing a web Drenching shower head Structure of bicycle chain transmission Oil, water and sand separator Vented wound dressing Tire Wrist-watch Apparatus for annealing and quenching © 2006. PatentGenius. All Rights Reserved.