Patents by Inventor Iraj Zandi

Iraj Zandi 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).

  • Particulate rubber included concrete compositions
    Patent number: 5456751
    Abstract: Concrete compositions are provided which contain particulate rubber, preferably recycled rubber from such sources as automobile tires, in amounts between about 0.05 and about 20 percent by weight of the concrete composition. The concrete compositions further contain portland cement, water, and an aggregate material. Additional materials such as superplasticizers and fly ash can also be admixed with the concrete compositions.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: October 10, 1995
    Assignee: Trustees of the University of Pennsylvania
    Inventors: Iraj Zandi, John Lepore, Hossein Rostami