HEMEX, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6071412 Extracorporeal device containing immobilized chelator on silica substrate and use thereofExpiredJul 27, 98Jun 06, 00[B01D]
4787974 Blood purificationExpiredOct 22, 87Nov 29, 88[B01D]
4714556 Blood purificationExpiredMar 13, 85Dec 22, 87[B01D]
4612122 Removing heavy metal ions from bloodExpiredSep 13, 84Sep 16, 86[B01E]
4535483 Suture rings for heart valvesExpiredJan 17, 83Aug 20, 85[A61F]
4451937 Heart valve having ear guided occludersExpiredFeb 08, 82Jun 05, 84[A61F]
4443894 Heart valve with dog-leg pivotExpiredApr 12, 82Apr 24, 84[A61F]
4373216 Heart valves having edge-guided occludersExpiredSep 15, 81Feb 15, 83[A61F]
4357715 Heart valve prosthesisExpiredOct 20, 80Nov 09, 82[A61F]
4328592 Heart valve prosthesisExpiredJan 14, 80May 11, 82[A61F]
4308624 Heart valve prosthesisExpiredAug 07, 79Jan 05, 82[A61F]

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