Patents by Inventor David Joseph Dino

David Joseph Dino 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).

  • Modified polygalactomannans as oil field shale inhibitors
    Patent number: 5646093
    Abstract: Polygalactomannans containing a hydrophilic substituent and a hydrophobic substituent are useful as oil shale inhibitor compositions in oil well drilling fluids.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: July 8, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: David Joseph Dino