Patents Examined by David E Deal
  • Method for sealing pipelines using a gel pig
    Patent number: 11009173
    Abstract: The present invention provides methods and methods for curing a leakage in a pipeline, the method including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: May 18, 2021
    Assignee: CURAPIPE SYSTEM LTD.
    Inventors: Samuel Perstnev, Boris Natapov, Alexander Perstnev, Reonald Ukhanov, Peter Paz