Patents by Inventor David Aittama

David Aittama 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).

  • Wheel ski mount
    Publication number: 20070235956
    Abstract: A wheeled cart, such as a shopping cart, has ski elements on the wheels thereof. The ski elements can be moved between stored and use positions.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 11, 2007
    Inventors: David Aittama, Paul DuMonthler