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Class Information
Number: 424/DIG.7
Name: Drug, bio-affecting and body treating compositions > Microporous membranes
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
6042909 Encapsulation device Mar. 28, 2000
5902603 Polyurethane hydrogel drug reservoirs for use in transdermal drug delivery systems, and associated methods of manufacture and use May. 11, 1999
5858385 Controlled release device and method based on aqueous--organic partitioning in porous membranes Jan. 12, 1999
5807917 Composite pressure sensitive hydrophilic adhesive and method of preparing the same Sep. 15, 1998
5681568 Device for delivery of substances and methods of use thereof Oct. 28, 1997
5676962 Injectable microfoam containing a sclerosing agent Oct. 14, 1997
5665391 Cultured, full-thickness integument substitutes based on three-dimensional matrix membranes Sep. 9, 1997
5585183 Preparation of liquid-core microcapsules for cell cultures Dec. 17, 1996
5503848 Spongy material consisting essentially of hyaluronic acid or its derivatives, and its use in microsurgery Apr. 2, 1996
5288488 Method of controlling foliar microorganism populations Feb. 22, 1994
5091175 Pharmaceutical composition containing bile acid sequestrant enclosed in a size-exclusion membrane Feb. 25, 1992
5071657 Device for transdermal administration of active medicinal agents Dec. 10, 1991
4968733 Process for producing microporous powders and membranes Nov. 6, 1990
4954381 Preparation of porous substrates having well defined morphology Sep. 4, 1990
4904260 Prosthetic disc containing therapeutic material Feb. 27, 1990
4818542 Porous microspheres for drug delivery and methods for making same Apr. 4, 1989
4794002 Modified polymeric surfaces and process for preparing same Dec. 27, 1988
4771004 Method for in vitro determination of transdermal absorption Sep. 13, 1988
4719112 Foam capsules Jan. 12, 1988
4666704 Controlled release delivery system for macromolecules May. 19, 1987
4647536 Method of encapsulating biomaterial in bead polymers Mar. 3, 1987
4637905 Process of preparing microcapsules of lactides or lactide copolymers with glycolides and/or .epsilon.-caprolactones Jan. 20, 1987
4585652 Electrochemical controlled release drug delivery system Apr. 29, 1986
4582799 Process for recovering nonsecreted substances produced by cells Apr. 15, 1986
4559054 Rate-controlled drug release system Dec. 17, 1985
4557955 Shaped articles which are composed of a copolymer containing fluorine groups and which are selectively permeable to liquids and gases and are simultaneously oleophobic and oleophilic Dec. 10, 1985
4557749 Conditioning device for hydrosoluble fertilizers and/or other products Dec. 10, 1985
4532123 Dual Microcapsules and process for their preparation Jul. 30, 1985
4423099 Membrane modified hydrogels Dec. 27, 1983
4409331 Preparation of substances with encapsulated cells Oct. 11, 1983
4377010 Biocompatible material comprising a base polymer bulk graft polymerized with an ethylenically unsaturated carboxylic acid Mar. 22, 1983
4322311 Process for producing controlled porosity microcapsules Mar. 30, 1982
4251387 Process for preparing semipermeable microcapsules Feb. 17, 1981
4174277 Resin and method for removing antimicrobials from body fluids Nov. 13, 1979
4145304 Resin and method for removing antimicrobials from body fluids Mar. 20, 1979
3985840 Method of introducing microporosity into membranes and making capsules having microporous capsule walls Oct. 12, 1976
3977992 Controlled release capsules Aug. 31, 1976











 
 
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