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:
Oct. 09, 1984
Filed:
Jul. 25, 1983
Applicant:
Inventors:
Roger E Gordon, Portage, MI (US);
Sanjay I Amin, Oshtemo Township, Kalamazoo County, MI (US);
Assignee:
The Upjohn Company, Kalamazoo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562494 ;
Abstract
Ibuprofen is crystallized from a .delta.H.gtoreq.8 liquid such as a C.sub.1 to C.sub.3 -alkanol, e.g., methanol, containing solutions thereof to obtain ibuprofen crystals which are equant (cube, sphere or grain) in shape, which ibuprofen crystals have larger average partile size, higher bulk density, lower bulk volume and improved flow properties compared to previously known bulk ibuprofen crystalline materials.