Patent · US Expired

Pharmaceutical tablet capable of liberating one or more drugs at different release rates

US6183778A · kind A · utility

111Cited by

18References

6Claims

0Family size

Assignee

JAGOTEC AG · CH

Inventors

Ubaldo Conte · Busto Arsizio, IT
Aldo LaManna · Pavia, IT
Lauretta Maggi · Pavia, IT

Key dates

Filing date	Jan 20, 1998
Grant date	Feb 6, 2001
Priority date	—
Expiry date	Jan 20, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/2086
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Pharmaceutical tablet consisting of a first layer containing one or more drugs with immediate or controlled release formulation, a second layer containing one or more drugs, either equal to or different from the first layer, with slow release formulation, and a low-permeability barrier-type layer coating said second layer or, alternatively, placed between the first and second layer and, if necessary, containing a drug.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.