Patents by Inventor Paul Collet

Paul Collet 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).

  • Compositions based on polyamines with ether groups
    Patent number: 4049716
    Abstract: Polyamine ether compounds useful as intermediates for producing additives for lubricating oils are provided as well as a process for the production of said compounds.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: September 20, 1977
    Assignee: Rhone-Poulenc Industries
    Inventor: Paul Collet