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:
Aug. 29, 1989
Filed:
Aug. 18, 1988
Applicant:
Inventor:
Jeffrey S Spencer, Kalamazoo, MI (US);
Assignee:
A. M. Todd Company, Kalamazoo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11B / ;
U.S. Cl.
CPC ...
426651 ; 514783 ; 131275 ;
Abstract
Crystal-clear peppermint oil maintaining its noble character and having a reduced pulegone content, enhanced menthone and menthol content, and improved stability against menthofuran oxidation breakdown is produced by a stereospecific method of reduction by hydrogenation of pulegone in situ using a saturated aqueous solution of sodium sulfite in the presence of glacial acetic acid at approximately neutral pH.