Patents by Inventor Koenraad R. C. Vander Meulen

Koenraad R. C. Vander Meulen 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).

  • Double bowl sink
    Patent number: D328783
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: August 18, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Koenraad R. C. Vander Meulen, Raymond J. Pohl