Patents by Inventor Gregory J. Dembowski

Gregory J. Dembowski 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).

  • Process for recovery of phosphorus ligand from vaporized aldehyde
    Patent number: 5110990
    Abstract: An improved rhodium catalyzed liquid recycle hydroformylation process, the improvement which comprises selectively separating and recovering phosphorus ligand from the vaporized aldehyde product stream obtained from volatilizing and separating the aldehyde product from the catalyst containing reaction product solution of the hydroformylation process.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: May 5, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Michael A. Blessing, Gregory J. Dembowski, Gregory K. Finnell