The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1992
Filed:
Apr. 18, 1991
Applicant:
Inventors:
Assignee:
Boehringer Ingelheim Italia S.p.A., Florence, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424490 ; 424471 ; 424460 ; 424461 ; 424462 ;
Abstract
Orally administrable pharmaceutical preparation containing an active ingredient to be released in the lower part of the gastrointestinal tract, i.e. in the large intestine, and especially colon, consisting of a core containing a therapeutically active substance and coated with three protection layers at different solubility. The manufacturing and the use of these preparations are also described.