Patents by Inventor Keith Frederick Briegel

Keith Frederick Briegel 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).

  • Process for ammonia recovery
    Patent number: 7537744
    Abstract: An improved process for ammonia recovery is provided for the recovery of substantially pure ammonia for use in industrial processes. In this improved method, specific raw materials and/or specific materials of construction are used. Overall efficiency and operational cost savings are increased as a result of the process of the present invention.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: May 26, 2009
    Assignee: Rohm and Haas Company
    Inventors: Abraham Benderly, Keith Frederick Briegel, Michael Stanley DeCourcy, Ronald Eugene Myers
  • Process for manufacturing high purity methacrylic acid
    Publication number: 20090084667
    Abstract: A process is provided herein for the high yield production of high purity glacial methacrylic acid (“HPMAA”) that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less.
    Type: Application
    Filed: February 7, 2008
    Publication date: April 2, 2009
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Flow through tube plug
    Patent number: 7252138
    Abstract: A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube. The flow through plug has an aperture along its axis, thus allowing for flow lengthwise through the flow through plug.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: August 7, 2007
    Assignee: Rohm and Haas Company
    Inventors: Larry Junior Burkhalter, Michael Stanley DeCourcy, Stephan Kenneth Weinberg, Keith Frederick Briegel
  • Process for manufacturing high purity methacrylic acid
    Patent number: 7128813
    Abstract: A process for the high yield production of high purity glacial methacrylic acid (“HPMAA”) with minimization of decomposition of hydroxy isobutyric acid (HIBA). The HPMAA is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process involves the steps of providing a crude MAA stream which was formed by hydrolyzing acetone cyanohydrin and, therefore, includes HIBA which is an intermediate product of the hydrolysis reaction, and purifying that crude methacrylic acid stream in a series of successive distillation steps.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: October 31, 2006
    Assignee: Rohm and Haas Company
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Flow through tube plug
    Publication number: 20060096736
    Abstract: A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube. The flow through plug has an aperture along its axis, thus allowing for flow lengthwise through the flow through plug.
    Type: Application
    Filed: August 1, 2005
    Publication date: May 11, 2006
    Inventors: Larry Junior Burkhalter, Michael Stanley DeCourcy, Stephan Kenneth Weinberg, Keith Frederick Briegel
  • Process for manufacturing high purity methacrylic acid
    Publication number: 20030205451
    Abstract: A process is provided herein for the high yield production of high purity glacial methacrylic acid (“HPMAA”) that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less.
    Type: Application
    Filed: April 22, 2003
    Publication date: November 6, 2003
    Inventors: Keith Frederick Briegel, James Clarence Day, Michael Stanley DeCourcy, Donald Alan Ebert, Jamie Jerrick John Juliette
  • Process for ammonia recovery
    Publication number: 20020146363
    Abstract: An improved process for ammonia recovery is provided for the recovery of substantially pure ammonia for use in industrial processes. In this improved method, specific raw materials and/or specific materials of construction are used. Overall efficiency and operational cost savings are increased as a result of the process of the present invention.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 10, 2002
    Inventors: Abraham Benderly, Keith Frederick Briegel, Michael Stanley DeCourcy, Ronald Eugene Myers