HYMEDIX INTERNATIONAL, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6392714 Color television signal processingExpiredDec 13, 93May 21, 02[H04N]
5736127 Polymeric nitrogen-containing drug salt forms for controlled releaseExpiredSep 05, 96Apr 07, 98[A61K]
5252692 Hydrophilic acrylic copolymers and method of preparationExpiredNov 23, 90Oct 12, 93[C08F]
5218039 Pan emulsionExpiredApr 28, 87Jun 08, 93[C08L]
5159260 Reference voltage generator deviceExpiredJan 07, 87Oct 27, 92[G05F]
5149052 Precision molding of polymersExpiredNov 16, 87Sep 22, 92[B22C]
5066091 Amorphous memory polymer alignment device with access meansExpiredMar 12, 90Nov 19, 91[G02B]
5037178 Amorphous memory polymer alignment deviceExpiredJan 12, 90Aug 06, 91[G02B]
4945145 Silane coating composition for ambient cureExpiredApr 06, 89Jul 31, 90[C08F]
4943618 Method for preparing polyacrylonitrile copolymers by heterogeneous reaction of polyacrylonitrile aquagelExpiredDec 18, 87Jul 24, 90[C08F]
4921323 Memory polymer optical fiber splicer and methodsExpiredDec 22, 88May 01, 90[G02B]
4828705 Pressure-dependent anisotropic-transport membrane systemExpiredOct 31, 86May 09, 89[B01D]
4731078 Intraocular lensExpiredAug 21, 85Mar 15, 88[A61F]
4631188 Injectable physiologically-acceptable polymeric compositionExpiredAug 31, 84Dec 23, 86[A61K]
4420589 Polymer composition including polyacrylonitrile polymers and process for preparing sameExpiredSep 27, 82Dec 13, 83[C08L]
4379874 Polymer composition comprising polyacrylonitrile polymer and multi-block copolymerExpiredJul 07, 80Apr 12, 83[C08L]
4370451 Novel block copolymers including acrylonitrile sequences and sequences including units derived from glutarimide units and processes for preparing sameExpiredFeb 08, 82Jan 25, 83[C08F]
4369294 Novel block copolymers including acrylonitrile sequences and glutarimide units and processes for preparing sameExpiredNov 20, 81Jan 18, 83[C08F]
4337327 Novel block copolymers including acrylonitrile sequences and sequences including units derived from glutarimide units and processes for preparing sameExpiredSep 17, 80Jun 29, 82[C08F]
4331783 Novel block copolymers including acrylonitrile sequences and glutarimide units and processes for preparing sameExpiredSep 17, 80May 25, 82[C08F]

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