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. 27, 2002
Filed:
Feb. 23, 2000
Applicant:
Inventor:
Gregory Kaplan, Bexley, OH (US);
Assignee:
Wiley Organics, Inc., Coshocton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 3/700 ;
U.S. Cl.
CPC ...
C07C 3/700 ;
Abstract
This invention relates to a method for producing biphenols by oxidative coupling of dialkylphenols which proceeds in two stages using a copper amine complex which is catalytically effective in each stage.