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:
Feb. 22, 2011
Filed:
Aug. 03, 2004
Applicants:
Jurgen Jaeger, Reinach, CH;
Kaspar Burri, Binningen, CH;
Sorana Greiveldinger-poenaru, Rheinfelden, CH;
Johannes Hoffner, Ziefen, CH;
Inventors:
Jurgen Jaeger, Reinach, CH;
Kaspar Burri, Binningen, CH;
Sorana Greiveldinger-Poenaru, Rheinfelden, CH;
Johannes Hoffner, Ziefen, CH;
Assignee:
Arpida AG, Muenchenstein, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 405/06 (2006.01); C07D 311/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a novel process for the preparation of 2H-chromenes of formula I and formula 5 and valuable intermediates of formulae 3 and 4 of this process.