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:
Feb. 19, 2008
Filed:
Dec. 09, 2003
Pascaline H. Tran, Holmdel, NJ (US);
Xinsheng Liu, Edison, NJ (US);
James M. Chen, North Brunswick, NJ (US);
Gerard D. Lapadula, Piscataway, NJ (US);
Howard Furbeck, Hamilton, NJ (US);
Pascaline H. Tran, Holmdel, NJ (US);
Xinsheng Liu, Edison, NJ (US);
James M. Chen, North Brunswick, NJ (US);
Gerard D. Lapadula, Piscataway, NJ (US);
Howard Furbeck, Hamilton, NJ (US);
Engelhard Corp., Florham Park, NJ (US);
Abstract
A stabilized metal promoted aluminosilicate zeolite, useful in the selective catalytic reduction of nitrogen oxides with ammonia, having a silica to alumina mole ratio of at least 8 and less than 30 and an FT-IR absorption peak at 3781 plus or minus 2 cmwhich stabilizes the zeolite against further dealumination such as under oxidizing and harsh hydrothermal conditions.