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:
Nov. 19, 1991
Filed:
Jan. 03, 1990
Applicant:
Inventors:
Kyung S Yun, Seoul, KR;
Byung W Cho, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204 74 ; 204 78 ;
Abstract
A process for preparing para-aminophenol from nitrobenzene by utilizing electrochemical synthesizing method in high yield for dissolution or dispersion of nitrobenzene in electrolytic bath in which working electrodes are constituted with multi-rotating disk electrode having a plurality of disk electrode and solid polymer electrolyte electrode.