Hoechst Italia, S.p.A.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5387442 Method of coating heat sensitive materials with powder paintExpiredJan 15, 93Feb 07, 95[B05D]
5155155 Photoactivating additive for polymer compositions, in the form of a metal salt of an oxidized waxExpiredAug 26, 91Oct 13, 92[C08L]
4834702 Kidney-ureter catheter assembly for evacuation of crumbled calculiExpiredMar 02, 87May 30, 89[A61M]
4741847 Aqueous anti-corrosion agent containing an ammonium salt of 2-benzthiazolythiocarboxylic acidExpiredFeb 18, 86May 03, 88[C10M]
4579560 Method for dyeing of fibers in the presence of quaternary alkoxyalkylammonium retarding or leveling agentExpiredJul 06, 84Apr 01, 86[D06P]
4552678 Corrosion inhibitors for aqueous liquids for the working of metals, and a process for their preparationExpiredOct 21, 83Nov 12, 85[C10M]
4533479 Corrosion inhibitors for aqueous liquids for the working of metals, and a process for their preparationExpiredOct 21, 83Aug 06, 85[C10M]

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