Patents by Inventor Chorng-Shyuan Tsay

Chorng-Shyuan Tsay has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid
    Patent number: 6610177
    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.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: August 26, 2003
    Assignee: Rohm and Haas Company
    Inventors: Chorng-Shyuan Tsay, Michael Stanley DeCourcy, I-Hwa Midey Chang-Mateu, Heather Granzin Thompson, Diana Elaine Chase
  • Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid
    Patent number: 6545176
    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.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: April 8, 2003
    Assignee: Rohm and Haas Company
    Inventors: Chorng-Shyuan Tsay, Makarand Dattatraya Phadke, Abraham Benderly, I-Hwa Midey Chang-Mateu, Nicole Rendon Koegel, Heather Granzin Thompson, Diana Elaine Chase
  • Process for preparing (meth) acrylic acid
    Patent number: 6500982
    Abstract: This invention relates to a process for preparing (meth)acrylic acid, whereby turndown control is utilized to maintain optimal distillation column performance in the dehydration of aqueous (meth)acrylic acid to provide a (meth)acrylic acid solution.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: December 31, 2002
    Assignee: Rohm and Haas Company
    Inventors: Timothy Allen Hale, Robert Michael Mason, Josefina Tseng Chapman, James Clarence Day, Chorng-Shyuan Tsay
  • Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid
    Publication number: 20020188153
    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.
    Type: Application
    Filed: July 29, 2002
    Publication date: December 12, 2002
    Inventors: Chorng-Shyuan Tsay, Michael Stanley DeCourcy, I-Hwa Midey Chang-Mateu, Heather Granzin Thompson, Diana Elaine Chase
  • Process for preparing (meth)acrylic acid
    Patent number: 6399817
    Abstract: This invention relates to a process for preparing acrylic acid which utilizes an aqueous stream which includes recycled wastewater, at least part of which is stripped of undesirable components in a stripping column prior to being recycled to an acrylic acid absorber.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 4, 2002
    Assignee: Rohm and Haas Company
    Inventors: Josefina Tseng Chapman, James Clarence Day, Donald Alan Ebert, Thomas Albert Kaminski, Robert Michael Mason, Chorng-Shyuan Tsay