Patents by Inventor Peter Hudec

Peter Hudec 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).

  • Benefaction of concrete and aggregate using calcium phosphate
    Patent number: 4802923
    Abstract: A phosphate additive, such as apatite or monocalcium phosphate monohydrate, is used to treat concrete aggregate and concrete to improve its resistance to natural and salt induced breakdown. The phosphate can also be used in association with road salt to prevent spalling and breakdown of concrete surfaces and damages to cars. Used alone as a surface treatment, it has the same effect.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: February 7, 1989
    Inventor: Peter Hudec