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.:

US 5300303 B1

Date of Patent:

Apr. 05, 1994

Filed:

Jul. 28, 1992

Spray granules or microgranules of pure riboflavin which contain no

Applicant:

Inventors:

Johannes Grimmer, Ludwigshafen, DE;

Hans Kiefer, Wachenheim, DE;

Christoph Martin, Mannheim, DE;

Assignee:

BASF Aktiengesellschaft, Ludwigshafen, DE;

Attorney:

Keil & Weinkauf

Primary Examiner:

Thurman K Page

Assistant Examiner:

G S Kishore

Int. Cl.

CPC ...

A61K / ; A61K / ;

U.S. Cl.

CPC ...

424489 ; 426471 ;

Abstract

A process for preparing spray granules or microgranules, which contain no binder, are non-dusting and free-flowing, from finely divided pure riboflavin, comprises subjecting an aqueous or water-containing suspension of the pure finely divided riboflavin to

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