Patents by Inventor Anna F Lang

Anna F Lang 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).

  • Patent number: 6862848
    Abstract: This invention provides an inexpensive and plausible means of earthquake protection for personal residences in developing nations and economically distressed areas within the United States through the use of recycled tires containing a particular rock aggregate.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: March 8, 2005
    Inventors: Anna F Lang, Jeffrey D Sargent