Patents by Inventor Karl Wintrup

Karl Wintrup 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).

  • Method of concentrating a water-containing glycol
    Patent number: 4182659
    Abstract: Water-containing glycol is heated first at atmospheric or superatmospheric pressure to partially remove water and concentrate the glycol and is then heated at subatmospheric pressure to further concentrate the glycol.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: January 8, 1980
    Assignee: Davy International Aktiengesellschaft
    Inventors: Jamil Anwer, Kuldip K. Sud, Karl Wintrup