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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
5741330 Close vascularization implant material Apr. 21, 1998
5738673 Method and apparatus for sealing implantable, membrane encapsulation devices Apr. 14, 1998
5736515 Use of growth hormone for increasement of concentration of GH, IGF-I and IGFBP-3 in cerebrospinal fluid Apr. 7, 1998
5733566 Controlled release of antiparasitic agents in animals Mar. 31, 1998
5733563 Albumin based hydrogel Mar. 31, 1998
5733565 Male contraceptive implant Mar. 31, 1998
5733567 Biodegradable, controlled-release microspheres and process for preparing them Mar. 31, 1998
5728396 Sustained delivery of leuprolide using an implantable system Mar. 17, 1998
5720969 Membrane formed by an acrylonitrile-based polymer Feb. 24, 1998
5713887 Method and apparatus for sealing implantable, membrane encapsulation devices Feb. 3, 1998
5713888 Tissue implant systems Feb. 3, 1998
5714170 Method of inducing resistance to tumor growth Feb. 3, 1998
5711958 Methods for reducing or eliminating post-surgical adhesion formation Jan. 27, 1998
5712252 Method of augmenting soft tissue in mammals Jan. 27, 1998
5702716 Polymeric compositions useful as controlled release implants Dec. 30, 1997
5702717 Thermosensitive biodegradable polymers based on poly(ether-ester)block copolymers Dec. 30, 1997
5698413 Method of evaluating chemotherapeutic agents in vivo Dec. 16, 1997
5693514 Non-fibrogenic high mannuronate alginate coated transplants, processes for their manufacture, and methods for their use Dec. 2, 1997
5693332 Human keratinocytes supported on a hydrophilic membrane and methods of using same to effect wound closure Dec. 2, 1997
5686092 Growth promoters for animals Nov. 11, 1997
RE35653 In vivo delivery of neurotransmitters by implanted, encapsulated cells Nov. 4, 1997
5681568 Device for delivery of substances and methods of use thereof Oct. 28, 1997
5679658 N,O-carbonxymethylchitosan for prevention of surgical adhesions Oct. 21, 1997
5674495 Alginate-based vaccine compositions Oct. 7, 1997
5674290 Water-stabilized biopolymeric implants Oct. 7, 1997
5662935 Process for preparing controlled release pharmaceutical forms and the forms thus obtained Sep. 2, 1997
5660847 Implantable delivery dispenser comprising exit port Aug. 26, 1997
5660854 Drug releasing surgical implant or dressing material Aug. 26, 1997
5658561 Method of producing anti-thrombogenic material and material produced thereby Aug. 19, 1997
5656469 Method of encapsulating biological substances in microspheres Aug. 12, 1997
5653688 Method and apparatus for sealing implantable membrane encapsulation devices Aug. 5, 1997
5653756 Closed porous chambers for implanting tissue in a host Aug. 5, 1997
5653687 Method and apparatus for sealing implantable, membrane encapsulation Aug. 5, 1997
5651980 Methods of use of uncoated gel particles Jul. 29, 1997
5643595 Growth promoters for animals Jul. 1, 1997
5643594 Spin encapsulation apparatus and method of use Jul. 1, 1997
5639275 Delivery of biologically active molecules using cells contained in biocompatible immunoisolatory capsules Jun. 17, 1997
5639468 Method for reducing or preventing post-surgical adhesion formation using manoalide and analogs thereof Jun. 17, 1997
5633000 Subcutaneous implant May. 27, 1997
5630842 Biocompatible surgical implant May. 20, 1997
5631011 Tissue treatment composition comprising fibrin or fibrinogen and biodegradable and biocompatible polymer May. 20, 1997
5631019 Biologic bioadhesive compositions containing fibrin glue and liposomes, methods of preparation and use May. 20, 1997
5629008 Method and device for long-term delivery of drugs May. 13, 1997
5614205 Bioartificial endocrine device Mar. 25, 1997
5609881 Bio-degradable/absorbable barrier membrane Mar. 11, 1997
5607685 Protracted-release adminstration forms containing clindamycin palmitate Mar. 4, 1997
5607694 Biologic bioadhesive compositions containing fibrin glue and liposomes, methods of preparation and use Mar. 4, 1997
5605938 Methods and compositions for inhibition of cell invasion and fibrosis using dextran sulfate Feb. 25, 1997
5601835 Polymeric device for controlled drug delivery to the CNS Feb. 11, 1997
5599552 Biodegradable polymer composition Feb. 4, 1997

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










 
 
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