Patents by Inventor Franciscus H. Gortemaker

Franciscus H. Gortemaker 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).

  • Dishwashing compositions
    Patent number: 4597886
    Abstract: By the inclusion of an effective level of a layered clay, e.g. a synthetic hectorite, in an enzymatic dishwashing composition, the formation of spots and films on the cleaned objects is significantly reduced.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: July 1, 1986
    Assignee: Lever Brothers Company
    Inventors: Machiel Goedhart, Franciscus H. Gortemaker, Hermanus C. Kemper, Hendrik S. Kielman
  • Dishwashing composition
    Patent number: 4591449
    Abstract: The use of a layered clay, e.g. a synthetic hectorite, in a non-enzymatic machine dishwashing composition provides for a significant reduction of spot and film formation.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: May 27, 1986
    Assignee: Lever Brothers Company
    Inventors: Machiel Goedhart, Franciscus H. Gortemaker, Hermanus C. Kemper, Hendrik S. Kielman
  • Dishwashing compositions
    Patent number: 4591448
    Abstract: The use of a layered clay in a non-enzymatic dish-washing composition with a reduced pH of 9-11 provides for a significant reduction of spot and film formation on the cleaned articles.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: May 27, 1986
    Assignee: Lever Brothers Company
    Inventors: Machiel Goedhart, Franciscus H. Gortemaker, Hermanus C. Kemper, Hendrik S. Kielman