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Class Information
Number: 424/424
Name: Drug, bio-affecting and body treating compositions > Preparations characterized by special physical form > Implant or insert > Surgical implant or material > Membrane or diffusion barrier
Description: Subject matter in which the sustained or differential release of active pharmaceutical takes place through a membrane or diffusion barrier.










Sub-classes under this class:

Class Number Class Name Patents
424/425 Diffusion barrier is matrix 458


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
5330757 Method for the prevention and reversal of the extrinsic aging of the skin by transdermal application of selenamino acids and compositions therefore Jul. 19, 1994
5326568 Method of tissue-specific delivery Jul. 5, 1994
5324519 Biodegradable polymer composition Jun. 28, 1994
5324518 Implantable structure for containing substances for delivery to a body Jun. 28, 1994
5320844 Composite materials for hard tissue replacement Jun. 14, 1994
5314471 Tissue inplant systems and methods for sustaining viable high cell densities within a host May. 24, 1994
5310559 Device for controlled release and delivery to mammalian tissue of pharmacologically active agents incorporating a rate controlling member which comprises an alkylene-alkyl acrylate copolymer May. 10, 1994
5298248 Method for continuous liberation of active constituents into water Mar. 29, 1994
5288496 Growth promoters for animals Feb. 22, 1994
5284658 Means for constraining a rumen drug delivery device in a rolled configuration Feb. 8, 1994
5282859 Composite living skin equivalents Feb. 1, 1994
5270300 Methods and compositions for the treatment and repair of defects or lesions in cartilage or bone Dec. 14, 1993
5270047 Local delivery of dipyridamole for the treatment of proliferative diseases Dec. 14, 1993
5258175 Treatment of poisoning and compositions for use therein Nov. 2, 1993
5232708 Coated veterinary implants Aug. 3, 1993
5230895 Sustained released delivery system for use in the periodontal pocket Jul. 27, 1993
5227298 Method for microencapuslation of cells or tissue Jul. 13, 1993
5211952 Contraceptive methods and formulations for use therein May. 18, 1993
5206023 Method and compositions for the treatment and repair of defects or lesions in cartilage Apr. 27, 1993
5201728 Subcutaneous implantable multiple-agent delivery system Apr. 13, 1993
5198222 Time release bolus Mar. 30, 1993
5182111 In vivo delivery of active factors by co-cultured cell implants Jan. 26, 1993
5174998 Sustained release compositions using as matrix hemicellulose extracted from wheat bran Dec. 29, 1992
5171574 Bone collagen matrix for implants Dec. 15, 1992
5169633 Continuous release phenylethanolamine derivative compositions Dec. 8, 1992
5167962 Filament system for delivering a medicament and method Dec. 1, 1992
5167960 Hirudin-coated biocompatible substance Dec. 1, 1992
5162115 Antineoplastic solution and method for treating neoplasms Nov. 10, 1992
5162114 Bone collagen matrix for xenogenic implants Nov. 10, 1992
5156851 Coated veterinary implants Oct. 20, 1992
5156844 Neurological therapy system Oct. 20, 1992
5153002 Biocompatible gradient controlled release implant Oct. 6, 1992
5147646 Hydrogel containing envelopes Sep. 15, 1992
5141747 Denatured collagen membrane Aug. 25, 1992
5141748 Implant drug delivery device Aug. 25, 1992
5137728 Ophthalmic article Aug. 11, 1992
5126140 Thrombomodulin-coated bicompatible substance Jun. 30, 1992
5126147 Sustained release dosage form Jun. 30, 1992
5120548 Swelling modulated polymeric drug delivery device Jun. 9, 1992
5116493 Artificial pancreatic perfusion device with reseedable matrix May. 26, 1992
5116494 Artificial pancreatic perfusion device with temperature sensitive matrix May. 26, 1992
5112614 Implantable delivery dispenser May. 12, 1992
5106627 Neurological therapy devices Apr. 21, 1992
5091185 Coated veterinary implants Feb. 25, 1992
5059422 Continuous release phenylethanolamine derivative compositions Oct. 22, 1991
5019372 Magnetically modulated polymeric drug release system May. 28, 1991
5019393 Biocompatible substance with thromboresistance May. 28, 1991
5002661 Artificial pancreatic perfusion device Mar. 26, 1991
5002572 Biological implant with textured surface Mar. 26, 1991
4994275 Veterinary devices Feb. 19, 1991

1 2 3 4 5 6 7 8 9 10 11 12 13 14










 
 
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