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. 21, 1991
Filed:
Jun. 05, 1990
Applicant:
Inventors:
Jurgen Rabenhorst, Bevern, DE;
Rudolf Hopp, Holzminden, DE;
Assignee:
Haarmann & Reimer GmbH, Holzminden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23L / ;
U.S. Cl.
CPC ...
426 44 ; 426 52 ; 426650 ; 426655 ;
Abstract
A process for the preparation of natural vanillin is disclosed wherein eugenol and/or isoeugenol is oxidized microbially to vanillin using microorganisms of the genera Serratia, Klebsiella or Enterobacter.