Patents by Inventor Gert A. M. Hooftman

Gert A. M. Hooftman 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).

  • Composition of an oligomeric fluorosilane and surface treatment of retroreflective sheet
    Patent number: 7723452
    Abstract: The invention relates to a method of treatment of a retroreflective sheet with a treatment composition that comprises a fluorinated compound having one or more silyl groups and an auxiliary compound selected from the group consisting of (i) one or more non-fluorinated compounds of an element M selected from Si, Ti, Zr, B, Al, Ge, V, Pb and Sn and (ii) an organic compound having a Si—H group. The invention also relates to compositions comprising (i) a fluorinated compound comprising one or more silyl groups and (ii) an auxiliary compound selected from the group consisting of organic compounds having a Si—H group.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 25, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Gert A. M. Hooftman, Dorothee B. Loosen
  • Composition of an oligomeric fluorosilane and surface treatment of retroreflective sheet
    Patent number: 7247386
    Abstract: The invention relates to a method of treatment of a retroreflective sheet with a treatment composition that comprises a fluorinated compound having one or more silyl groups and an auxiliary compound selected from the group consisting of (i) one or more non-fluorinated compounds of an element M selected from Si, Ti, Zr, B, Al, Ge, V, Pb and Sn and (ii) an organic compound having a Si—H group. The invention also relates to compositions comprising (i) a fluorinated compound comprising one or more silyl groups and (ii) an auxiliary compound selected from the group consisting of organic compounds having a Si—H group.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: July 24, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Gert A. M. Hooftman, Dorothee B. Loosen