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:
May. 16, 1978
Filed:
Aug. 26, 1975
Applicant:
Inventors:
Leon M Polinski, North Plainfield, NJ (US);
George W Roberts, Westfield, NJ (US);
Saul G Hindin, Mendham, NJ (US);
Assignee:
Engelhard Minerals & Chemicals Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
2328 / ; 2328 / ;
Abstract
A catalyst system capable of operating at very high temperatures is disclosed. The catalyst is divided into upstream and downstream portions, the upstream portion being protected against both thermal conduction and radiant heat transfer from the downstream portion. Advantageously, the upstream portion may use a more active catalyst composition than the downstream portion.