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:
Sep. 01, 1998
Filed:
Feb. 05, 1997
Applicant:
Inventors:
Franz-Josef Mais, Dusseldorf, DE;
Klaus-Christian Paetz, Burscheid, DE;
Helmut Fiege, Leverkusen, DE;
Heinz Ulrich Blank, Odenthal, DE;
Dieter Brueck, Bonn, DE;
Wolf Mehl, Koln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564417 ; 5483684 ; 5483687 ; 564155 ; 564164 ; 564168 ; 560110 ;
Abstract
Process for preparing haloaromatic amines by catalytic hydrogenation of the corresponding halonitroaromatic compounds, characterized in that iron-containing Raney nickel is used as catalyst, where the haloaromatic amines prepared can be used for the synthesis of photographic couplers which are useful in photographic emulsions or elements.
Mais, Franz-Josef. (1998). Hydrogenation of halonitroaromatic compounds (U.S. Patent No. 5801284). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5801284
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile