CHEMAP AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5143525 Process and apparatus for breaking up foam into its liquid and gaseous componentsExpiredJun 24, 91Sep 01, 92[B01D]
4902418 Element having a porous wallExpiredNov 06, 86Feb 20, 90[B01J]
4749654 Method and apparatus for the submerged growth of cell culturesExpiredNov 16, 81Jun 07, 88[C12N, C12M, B01D]
4725548 Method and fermenter for growing tissue cellsExpiredMay 02, 86Feb 16, 88[C12N, C12M]
4704363 Fermentation systemExpiredOct 09, 86Nov 03, 87[C12M]
4535062 Apparatus for growing microorganismsExpiredFeb 07, 83Aug 13, 85[C12M]
4442889 Apparatus for combined cooling and aeration of biochemical-action vesselsExpiredMay 22, 81Apr 17, 84[F28F]
4419244 Method and arrangement for aeration of liquidsExpiredDec 10, 81Dec 06, 83[C12M, C02F]
4404106 Filter apparatus and a method of cleaning filter elements thereofExpiredJun 02, 80Sep 13, 83[B01D]
4400399 Method and an arrangement for feeding fish with a fodderExpiredJul 24, 81Aug 23, 83[C12K]
4311798 Method of and an arrangement for cultivating cells of animal and human tissuesExpiredFeb 26, 79Jan 19, 82[C12M]
4310630 Arrangement for cultivating cells of animal and human tissuesExpiredMar 13, 80Jan 12, 82[C12M]
4276166 Filter apparatus and a method of cleaning filter elements thereofExpiredSep 19, 79Jun 30, 81[B01D]
4276384 FermenterExpiredJul 17, 79Jun 30, 81[C12M]
4267275 Method of recovering products of high protein content from protein-polysaccharide complexesExpiredOct 18, 78May 12, 81[C07G, A23J]
4259449 Method of cultivating cells of animal and human tissuesExpiredAug 23, 78Mar 31, 81[C12N]
4237820 Method and an arrangement for feeding fish with a fodderExpiredJun 21, 78Dec 09, 80[A01K]
4230576 Method of cleaning filter elements thereofExpiredFeb 13, 79Oct 28, 80[B01D]
4228242 Arrangement for cultivating cells of animal and human tissuesExpiredAug 16, 78Oct 14, 80[C12M]
4224153 Process and a filter for filtering a liquid containing solids having a substantially different specific gravity relative to the liquidExpiredNov 13, 78Sep 23, 80[B01D]

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