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Class Information
Number: 424/484
Name: Drug, bio-affecting and body treating compositions > Preparations characterized by special physical form > Matrices
Description: Subject matter in which the special physical form includes a reticulated net work of material from which the drug is eluted or released by dissolution of the reticulated network physically holding the drug.


Sub-classes under this class:

Class Number Class Name Patents
424/485 Natural gums, resin or latex 420
424/488 Polysaccharides (e.g., cellulose, etc.) 1,121
424/486 Synthetic polymer 1,599


Patents under this class:
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Patent Number Title Of Patent Date Issued
6319512 Implants for controlled release of pharmaceutically active principles and method for making same Nov. 20, 2001
6319521 Microparticles of lactide-co-glycolide copolymers and methods of making and using the same Nov. 20, 2001
6319715 Method of enhancing the delivery of nucleic acids using silica nanoparticles Nov. 20, 2001
6316027 Fast-dissolving dosage forms for dopamine agonists Nov. 13, 2001
6316028 Banded prolonged release active agent dosage form Nov. 13, 2001
6316029 Rapidly disintegrating solid oral dosage form Nov. 13, 2001
6312701 Pelargonic acid vanillyamide containing tear gas Nov. 6, 2001
6312725 Rapid gelling biocompatible polymer composition Nov. 6, 2001
6309659 Reverse phase connective tissue repair composition Oct. 30, 2001
6309665 Composition with sustained release of active principle, capable of forming a microemulsion Oct. 30, 2001
6309669 Therapeutic treatment and prevention of infections with a bioactive materials encapsulated within a biodegradable-biocompatible polymeric matrix Oct. 30, 2001
6309670 Collagen-polysaccharide matrix for treatment of bone tumors Oct. 30, 2001
6306423 Neurotoxin implant Oct. 23, 2001
6306427 Pellets containing active ingredients protected against degradation in the rumen of ruminants Oct. 23, 2001
6306438 Stabilized sustained release tramadol formulations Oct. 23, 2001
6306835 Biocidal chitosan derivatives Oct. 23, 2001
RE37410 Controlled local delivery of chemotherapeutic agents for treating solid tumors Oct. 16, 2001
6303147 Bioadhesive solid dosage form Oct. 16, 2001
6299898 Methods and compositions for the treatment of wounds Oct. 9, 2001
6299899 Extremely flexible plaster acting dermally or transdermally, and method for producing same Oct. 9, 2001
6296867 Therapeutic contact lens comprising living cells within a matrix Oct. 2, 2001
6296869 Adhesive cosmetic patch containing alpha or beta hydroxy acids Oct. 2, 2001
6296873 Zero-order sustained release delivery system for carbamazephine derivatives Oct. 2, 2001
6294187 Load-bearing osteoimplant, method for its manufacture and method of repairing bone using same Sep. 25, 2001
6294195 Orally administrable opioid formulations having extended duration of effect Sep. 25, 2001
6294201 Osmotic medicament releasing system Sep. 25, 2001
6290986 Method and composition for transdermal administration of pharmacologic agents Sep. 18, 2001
6290988 Encapsulated material with controlled release Sep. 18, 2001
6290989 Expandable gastro-retentive therapeutic system with controlled active substance release in the gastro-intestinal tract Sep. 18, 2001
6291179 Product and method for separation of a sample containing multiple sources of genetic material using a solid medium Sep. 18, 2001
6287601 Topical nitric oxide donor compositions Sep. 11, 2001
6287816 BMP-9 compositions Sep. 11, 2001
6284265 Antacid formulation Sep. 4, 2001
6284279 Phenothiazine in prill form and method for making the same Sep. 4, 2001
6284375 Lipid vesicle system Sep. 4, 2001
6280745 Methods and compositions for the delivery of pharmaceutical agents and/or the prevention of adhesions Aug. 28, 2001
6280750 Solid cosmetic composition and uses thereof Aug. 28, 2001
6280771 Dosage forms exhibiting multi-phasic release kinetics and methods of manufacture thereof Aug. 28, 2001
6274161 Compositions containing creatine in suspension Aug. 14, 2001
6274168 Phenytoin sodium pharmaceutical compositions Aug. 14, 2001
6270753 Fragrance-containing plastic coating compositions for paper substrates Aug. 7, 2001
6270795 Method of making microencapsulated DNA for vaccination and gene therapy Aug. 7, 2001
6267984 Skin permeation enhancer compositions comprising a monoglyceride and ethyl palmitate Jul. 31, 2001
6267987 Positively charged poly[alpha-(omega-aminoalkyl) glycolic acid] for the delivery of a bioactive agent via tissue and cellular uptake Jul. 31, 2001
6268348 Synthetic compounds and compositions with enhanced cell binding Jul. 31, 2001
6264934 Low surface tension cosmetic copolymers Jul. 24, 2001
6264974 Buccal and sublingual administration of physostigmine Jul. 24, 2001
6264987 Method for preparing microparticles having a selected polymer molecular weight Jul. 24, 2001
6265389 Microencapsulation and sustained release of oligonucleotides Jul. 24, 2001
6261579 Cosmetic use of a rigid gel and cosmetic or dermatological compositions therefor Jul. 17, 2001

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