Patents by Inventor Amir Reza SHAHAB

Amir Reza SHAHAB 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).

  • ADMIXTURE FOR PREVENTING SWELLING OF ANHYDRITE CONTAINING ROCK MATERIAL
    Publication number: 20210040847
    Abstract: A chemical inhibitor is used for reducing and/or preventing swelling of anhydrite containing rock material, wherein, the chemical inhibitor is used during construction work, especially in tunnel construction through rock material, especially in drill and blast tunnel construction work and/or in tunnel construction with a tunnel boring machine.
    Type: Application
    Filed: February 15, 2019
    Publication date: February 11, 2021
    Applicants: ETH Zürich, Sika Technology AG
    Inventors: Robert FLATT, Timothy WANGLER, Amir Reza SHAHAB