Patents by Inventor Jan Martin de Rijke

Jan Martin de Rijke 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).

  • Oxygenates and processes for their manufacture
    Patent number: 6265619
    Abstract: Alcohols suitable for plasticizer ester manufacture and acids are made by cofeeding olefins to oxonation, aldolizing the resulting aldehyde and hydrogenating the resulting unsaturated aldehydes, optionally dehydrating a part of the alcohol thereby made and returning the resulting olefin to oxonation, or oxidizing the aldehydes.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: July 24, 2001
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Jan Martin de Rijke
  • Hydroformylation process employing loop reactors
    Patent number: 5763678
    Abstract: An exothermic chemical reaction, for example, hydroformylation, is carried out in a series of loop reactors. Fresh reactant feed is supplied not only to the first reactor in the series but also to the second reactor, thereby achieving improved overall throughput while maintaining a stable temperature in at least the first reactor.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: June 9, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventors: Hubertus Jozeph Beckers, Jan Martin De Rijke, Ronald Dean Garton