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. 26, 2010
Filed:
Apr. 10, 2006
August Rüttimann, Arlesheim, CH;
Edith Maria Rüittmann-wechsler, Legal Representative, Arlesheim, CH;
Natalie Christina Rüittmann, Legal Representative, Arlesheim, CH;
Pascal Michael Rüittmann, Legal Representative, Arlesheim, CH;
Jochen Stangl, Wehr, DE;
August Rüttimann, Arlesheim, CH;
Edith Maria Rüittmann-Wechsler, legal representative, Arlesheim, CH;
Natalie Christina Rüittmann, legal representative, Arlesheim, CH;
Pascal Michael Rüittmann, legal representative, Arlesheim, CH;
Jochen Stangl, Wehr, DE;
DSM IP Assets B.V., Heerlen, NL;
Abstract
A process for the preparation of hydroxylated isoflavones by reacting in a Hoesch reaction using an alkanoic acid alkyl ester as solvent a phenol with a phenylacetonitrile to yield a 1,2-diphenyl-ethanone and transforming the ethanone into an isoflavone by well-known methods.