PHARMACIA LKB BIOTECHNOLOGY AB

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5466368 Anion exchangerExpiredOct 04, 94Nov 14, 95[B01D]
5160625 Method for flow field flow fractionationExpiredDec 06, 91Nov 03, 92[B01D]
5147536 Anion exchanger with a ligand comprising two quaternary amino groups at a distance of two atomsExpiredFeb 26, 91Sep 15, 92[B01D]
5100788 Method of producing and isolating IGG-binding protein a fusion peptides and a vector thereforExpiredMay 09, 88Mar 31, 92[C12P, C12N]

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