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:
Aug. 26, 2003
Filed:
Jul. 29, 2002
Applicant:
Inventors:
Chorng-Shyuan Tsay, Maple Glen, PA (US);
Michael Stanley DeCourcy, Houston, TX (US);
I-Hwa Midey Chang-Mateu, Ambler, PA (US);
Heather Granzin Thompson, Missouri City, TX (US);
Diana Elaine Chase, League City, TX (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 3/00 ; C07C 6/720 ;
U.S. Cl.
CPC ...
B01D 3/00 ; C07C 6/720 ;
Abstract
A high yield process for the production of methyl methacrylate or methacrylic acid and an apparatus for increasing the yield in a process for the production of methyl methacrylate or methacrylic acid are disclosed.