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:
Mar. 10, 1998
Filed:
Jun. 24, 1996
Applicant:
Inventors:
Graham John Hutchings, Osmotherley, GB;
Richard William Joyner, Liverpool, GB;
Barry William Southward, Widnes, GB;
Russel Andrew Stewart, Wolverhampton, GB;
Lance Svend Fuller, Acton Trussell, GB;
Assignee:
Shell Research Limited, Waterloo, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
549 85 ; 549 84 ; 549 83 ;
Abstract
A method of preparing a thiophene comprises reacting an organic compound containing a chain of at least 4 C atoms linked by single or double bonds with a source of sulphur in the vapor phase, in the presence of a supported catalyst, the catalyst having the composition