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:
Nov. 09, 1999
Filed:
Aug. 21, 1998
Applicant:
Inventors:
Bogdan Mudryk, East Windsor, NJ (US);
Jen-Sen Dung, Boothwyn, PA (US);
Chester Sapino, Sewell, NJ (US);
James Guro, Newark, DE (US);
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546 45 ; 546 45 ; 546 46 ;
Abstract
A method for removing residual organic solvents from a bulk substance, for example from a pharmaceutical drug substance, comprises drying the bulk substance in the presence of water vapor, such that the residual organic solvent molecules are displaced with water vapor molecules.