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Class Information
Number: 424/469
Name: Drug, bio-affecting and body treating compositions > Preparations characterized by special physical form > Tablets, lozenges, or pills > Sustained or differential release type > Discrete particles in supporting matrix
Description: Subject matter in which discrete soluble particles of the active ingredient are positioned or dispersed in a solid, generally insoluble matrix from which said particles are leached sequentially under conditions of use from the outside portions of the matrix inwardly.










Sub-classes under this class:

Class Number Class Name Patents
424/470 Where particles are granulated 556


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
8703191 Controlled-release pharmaceutical tablets Apr. 22, 2014
8703189 Medicinal composition Apr. 22, 2014
8691270 Misuse preventative, controlled release formulation Apr. 8, 2014
8685443 Sequestering subunit and related compositions and methods Apr. 1, 2014
8685447 Misuse preventative, controlled release formulation Apr. 1, 2014
8679535 Sustained release matrix systems for highly soluble drugs Mar. 25, 2014
8673344 Solid dosage form with a film containing an active substance, as well as its method of production Mar. 18, 2014
8668929 Gastric retentive extended-release dosage forms comprising combinations of a non-opioid analgesic and an opioid analgesic Mar. 11, 2014
8668932 Extended release venlafaxine formulation Mar. 11, 2014
8668934 Pharmaceutical formulation comprising a water-insoluble active agent Mar. 11, 2014
8647656 Orally disintegrating tablet compositions of lamotrigine Feb. 11, 2014
8642082 Pharmaceutical compositions for the oral administration of heparin or derivatives thereof Feb. 4, 2014
8637079 Solid preparation comprising alogliptin and pioglitazone Jan. 28, 2014
8632805 Controlled-release formulations, method of manufacture, and use thereof Jan. 21, 2014
8617587 Tasted masked veterinary solid compositions Dec. 31, 2013
8617596 Sustained-release tablet production process Dec. 31, 2013
8603524 Delivery of ethylene blocking and/or promoting agents Dec. 10, 2013
8603525 Multilayer orally disintegrating tablet Dec. 10, 2013
8592364 CCR7 ligand delivery and co-delivery in immunotherapy Nov. 26, 2013
8591946 Modified release compositions comprising tacrolimus Nov. 26, 2013
8568776 Multiparticulate L-menthol formulations and related methods Oct. 29, 2013
8545889 Co-processed carbohydrate system as a quick-dissolve matrix for solid dosage forms Oct. 1, 2013
8535716 Methods and composition of extended delivery of water insoluble drugs Sep. 17, 2013
RE44459 Method for lowering blood glucose Aug. 27, 2013
8506998 Pharmaceutical formulation Aug. 13, 2013
8486448 Misuse preventative, controlled release formulation Jul. 16, 2013
8486449 Misuse preventative, controlled release formulation Jul. 16, 2013
8475840 Sustained release formulation for oral administration of HMG-CoA reductase inhibitor and method for the preparation thereof Jul. 2, 2013
8461187 Multiple PPI dosage form Jun. 11, 2013
8460710 Antibiotic product, use and formulation thereof Jun. 11, 2013
8394408 Gastric retentive extended-release dosage forms comprising combinations of a non-opioid analgesic and an opioid analgesic Mar. 12, 2013
8372431 Pharmaceutical composition comprising licarbazepine acetate Feb. 12, 2013
8372432 Gastric retentive extended-release dosage forms comprising combinations of a non-opioid analgesic and an opioid analgesic Feb. 12, 2013
8357397 Controlled release composition comprising a recombinant gelatin Jan. 22, 2013
8349361 Composition for rapid disintegrating tablet in oral cavity Jan. 8, 2013
8343524 Extended release tablet and method for making and using same Jan. 1, 2013
8337890 Modified release formulations containing drug-ion exchange resin complexes Dec. 25, 2012
8323690 Solid oral dosage form containing an enhancer Dec. 4, 2012
8323689 Solid oral dosage form containing an enhancer Dec. 4, 2012
8313774 Oral solid composition Nov. 20, 2012
8313776 Antibiotic product, use and formulation thereof Nov. 20, 2012
8313775 Antibiotic product, use and formulation thereof Nov. 20, 2012
8303987 Pharmaceutical compositions comprising fluvastatin Nov. 6, 2012
8293277 Controlled-release nanoparticulate compositions Oct. 23, 2012
8287903 Orally effective methylphenidate extended release powder and aqueous suspension product Oct. 16, 2012
8282957 Coated particles containing pharmaceutically active agents Oct. 9, 2012
8268351 Matrix film tablet with controlled release of a natural mixture of conjugated estrogens Sep. 18, 2012
8268352 Modified release composition for highly soluble drugs Sep. 18, 2012
8263126 Orally-dispersible multilayer tablet Sep. 11, 2012
8263125 Dosage form for high dose-high solubility active ingredients that provides for immediate release and modified release of the active ingredients Sep. 11, 2012

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