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:
May. 13, 2003
Filed:
Dec. 06, 2001
Applicant:
Inventors:
Martin Karpf, Reinach, CH;
René Trussardi, Birsfelden, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
C07D / ; C07D / ;
Abstract
The present invention is concerned with mixed anhydrides. The mixed anhydrides are prepared by adding an adjuvant base to a mixture of acid and reactive acid derivative. The mixed anhydrides play an role primarily in activating and coupling reactions.